The WeBob Blog

Updated PDU and Surge Sections

2012-02-08T23:52:00.000-05:00

I know I have been lazy on not keeping up the inventory reports on the Eaton Protector(R) Surge Suppressors... but that its been fixed. The new pages has real photos, better condition notes and easy BuyItNow click buttons.

Also, the PDU section has expanded. I have included some more metered and switched units as well as a 3phase type. Enjoy.

Desperately seeking SYBT5s... APC global distribution out of stock

2012-02-05T23:50:00.000-05:00

As a small business owner, its often fun to see the big guys fail miserably. This week it was Schneider Electric's turn. Their very popular Symmetra LX battery pack went out of stock last week. No one had one.

Distributors, APC Reps, and service providers were scrambling. Their supply of the most popular battery pack was stuck on a boat halfway from China. Systems were failing and NO ONE could do anything. APC made it even worse by the Chip protection that prevents most people from simply swapping the internal batteries in the pack.

Of course this led to some robust sales for us last week. While we dont normally sell Symmetra parts, some major companies asked us for help. So we shipped several refurbished SYBT5s overnight to Universities and Fortune 500 companies.

Almost as good as Chocolate and Peanut Butter... our Rack + UPS combos

2012-01-17T20:58:00.020-05:00

Hey you got your chocolate in my peanut butter. No you got your peanut butter in my chocolate...

Well maybe not as iconic as that combo, but UPS units with Network cabinets is just as a perfect fit. We start off with 2 based on some recent requests from our customers.

The first was built to clean up a customer' crazy server cabinet. They had a voice mail server and a phone system nestled on a old printer cart in a coat closet. Now with the QUC1422 Combo they have a nice looking system they can proud of

The second was to handle a friend's DVR video surveillance system. He needed an attractive package for his customer. Presto the QUC1822 was born. Combining the extended run Tripplite 2200va UPS with the lockable cabinet made for successful and clean installation. Plus 8hrs backup time closed the deal.

View both and more future combinations here

Wesworth Venture Number XI: Solar-Gro

2012-01-15T22:36:00.001-05:00

Frequent followers know Wesworth seems to do alot of different things.

We started with simple electric, added energy savings systems, bucket truck services, motor control, UPSes, lighting fixtures, a California branch, B2B power quality, contract engineering, metal fabrication, and now Solar power systems.

And like many of other previous ventures (Infinergy, NightOwl, ITSpm, Neg-a-Watt, Greenlight, 415UPS, 2ndGrid, GreenlightLABS) this one has its on catchy name... Solar-Gro.

Solar-Gro is a partnership with our friends at the Urban Farmer in Pompano to sell a solar panel kit for a farming system called Verti-Gro. We are just beginning production, but its an exciting niche to service as solar is becoming more attractive.

Learn more about our friends at the Urban Farmer at their site... and more about Solar-Gro project at www.YourSolar-Gro.com (coming soon)

3phase Power Misconceptions: Circuit Watts

2012-01-13T22:36:00.000-05:00

Recently, we have been recommending more 3phase power solutions for people. Frequently, the mere mention of a 3phase UPS creates fear and confusion. Part of the problem is that 3phase UPS units were expensive to buy and even more expensive to maintain. We still have business affiliates that make most of their money on service contacts on these older beasts.

Today's 3phase is cheaper, expandable, and near maintenance free. But before you make the jump to the Symmetra PX 40... lets consider one aspect of 3phase.... CIRCUIT WATTS

3phase is a method delivering power... what it ultimately delivers is still watts. There is no difference between a 3phase phase watt and single phase watt.
Since watts are a result of volts x amps.... if you need more watts you must increase voltage and or amps.
And since your amperage is fixed at your panel or building, upping voltage is the best way to get more watts.
But if you are already running at high voltage and amperage is maxed... your only option is to goto 3phase.

Consider a 30amp circuit to a rack. Notice how upping the voltage and phase delivers more watts or power.

At 120volt... your 30amp circuit provides 2.88kw
At 208volt... the 30amp circuit provides 4.99kw
At 3phase 208v... that same circuit provides 8.64kw

Just this one aspect gives you a glimpse of why 3phase power is seen by IT providers as the more effective way of delivering the wattage you need to your IT system.

UPS and Electrical Ideas for Colocation Center

2012-01-04T19:03:00.000-05:00

Since we offer affordable racks, UPSes, accessories AND have a state license in electrical... many customers ask us for advice on various IT projects.

This week, we put together some thoughts on setting up a colo rack. Unlike a personal or commercial server system, a Colo center needs full automated control and monitoring and scalability for several clients. This location had a generator, so they only need 5-10mins of uptime.

This simple design begins with a 25U rack and outlines the electrical, UPS and PDU features needed. The full details are here in our library and large pix here

Some of the equipment suggested.... about $1600

UPS - 3000va 120v - (302b)
PDU Backplate Option - (plate2l30)
PDU - 30amp 120v - (dm230)
Bypass - 30am 120v - (sbp3k)
Cabinet - 25U - (rk25t)

Export Shipping Options to Brasil and the world

2011-12-30T21:59:00.001-05:00

We'll love to serve the world's needs for power protection, but often shipping these very heavy items is exorbitant.

However, a growing number of people are buying our units to export to other countries. While prohibitive for just 1 unit, reasonable less-than-container rates can be found since we are so close to the Miami Port.

So if you need a UPS in Brasil, Portugal, or Panama... dont be afraid to ask us. We use Air Parcel Express for great rates. Check them out here. Dont forget to add about $50 for crating and your countries' duties and taxes.

U P aSked: Can I use a SUA3000RMT2U on a regular home 240VAC without damaging the UPS

2011-12-29T21:59:00.000-05:00

Danger Will Robinson.. Danger !

High voltage is often causally described as 208, 220, 230, 240 and even 250volt. But as previously mentioned, high voltage in the US only comes in two nominal flavors: 208v and 240v.

Recap on Voltages
208volt is derived from commercial 3phase power (though it actually single phase).
240volt is derived from some commercial 3phase power, smaller commercial locations AND more commonly found in people's home.

Recap on UPS Voltage Signatures
Nearly every manufacturer (EXCEPT APC) make units that are good for all types of US and in many cases international power.
UPS will output what the input power is (eg 208v in > 208v out). And will go to protect mode if the input power is off or the voltage is out of range.
For this to work, you must make sure your UPS can output the voltage you want. Either automatically or pre-set in the configuration

THE APC EXCEPTION
Most SmartUPS units just output 208volt. So when you give it 240volt, it will think you are getting a surge and trim the voltage down back to 208v. Or as APC says...
if you will use it on a much more higher voltage the unit will run online but will be on AVR Trim state which in the long run would damage the mechanism that corrects voltages.

Bottomline... if you need 240volt for a home server UPS... look for our listings with the 200v+, 240, or 208/240v icons. Sadly that SUA3000RMT2U is not one of them.

End of Year 3000va Specials

2011-12-18T22:31:00.000-05:00

Our most popular class of UPS is the 3000va 120volt Rackmount unit.... and now we have 2 great affordable options.

Tripplite Smart Online 3000va for $529 and FREE shipping.
Minuteman Enterprise 3200va for $377

The Tripplite model (to313c) is a full double conversion unit, retailing for $1700 new. But since this is the older style, we got them on sale with free shipping. Plus, unlike the $800 APC Online unit, these tripplites are ready for PDUs with the twistlock backplate.

The Minuteman Enterprise (mm313) is a true 3200va unit, offering a bit more power to those customers needing a few more watts. Plus since we got these by the pallet, we can offer them for $377. Its a great value, but even better since they have the twistlock backplate and shallow depth for all types of installations.

Whats in store for 2012

2011-12-10T21:32:00.002-05:00

As we wrap up another record year at GreenlightUPS, we wanted to share with you some developments planned for 2012.

Warranty Changes - our warranty policy will split into standard and gold levels. In response to our competitors changes, we will offer a more limited standard warranty. But will offer a gold level warranty for those looking for a hassle free full service warranty. And the Good News... all existing customers, will get the Gold Warranty standard
New eBay Portal - we have opened GreenlightUPS Outlet, for some crazy clearance and scratch and dent items.
New Payment Options on our website - We are leaving Paypal to a AuthorizeNET API to meet customer's needs. Plus we are adding PO and Invoice options.
Price Changes - We always want to keep our prices low, but an inevitable increase in lead for batteries may push our prices up... so buy in 2011 before the change.

Random Part of the Month XV - ACRD500

2011-12-07T22:24:00.000-05:00

APC is primarily a power equipment company, but it also is a big seller of HVAC equipment. Honestly, my eyes gloss over when people talk about server room cooling. But when our IT tech friend came across one of these ACRD500 beasts being de-installed, I was impressed.

This is a 1000lb cabinet filled with giant quiet fans, sensors, regulators, and filters. Its impressive. While probably not worth the $16000 price tag, it was well made. Since no one has ever asked for rack row coolers units, I decided not to buy it. Maybe when it gets 95 degrees again here, I might regret not having this beast in our warehouse.

ReMade versus Refurbished..... The newest option in UPS sales

2011-12-05T22:04:00.000-05:00

To meet a growing need of our IT professionals to sell high quality & high value UPS units, we have formally opened our GreenlightLABS Remade UPS division.

Units from the LAB are fully restored with original accessories, new covers & bezels, original packaging, extended warranties and mint new batteries. This feature allows customers to sell these unit at a greater markup.

We typically offer LAB service to any UPS still in production including the SUA, SMT, and SURT APC models. Email or call for details and pricing

New Product - Affordable 3kva UPS units

2011-12-02T21:52:00.000-05:00

Why we normally shy away from non-major brands, we got an opportunity that meet many people's needs at a great price. Introducing the Minuteman Enterprise UPS 3200 series.

These units available in 120 and 200v are well spec'd UPSes, fully refurbished with new batts.... but at a fraction of the price of the APC and Eaton Models

Learn more here: mm313 (120v) | mm392 (200v)

415UPS and 2ndGrid divisions close down

2011-12-02T16:58:00.000-05:00

After several years, Wesworth has ended its relationship with 415UPS.com and folded the 2ndGrid division back into GreenlightUPS.

In official corporate speak, we would say the reason is "in order to refocus our energies and improve our branding", but the reality was that any efficiencies gained from these two ventures were offset by higher operating costs.

Not to worry, GreenlightUPS will continue to serve its California and IT consultants under the main store. 415UPS.com's ebay store will re-open as GreenlightUPS O-U-T-L-E-T in 2012

KnowUPS - Shutdown of Multiple Servers

2011-11-15T16:44:00.000-05:00

Sadly, most APC Smart UPS units are really dumb without the addition of a network management card. But once you add these powerful accessories... the skies the limit. Buy them here

Here are the most common features used

Be notified of problems via email
Customize shut down and reboot of connected equipment
Data logging of events and environment
Forwarding SNMP traps
Web access to UPS anywhere on network
Activate relays based on events

A frequent request is to have the UPS initiate shutdowns on multiple servers. To do you need the netcard and the PowerChute software available on APC's site.

Read more here

Random Part of the Month XIV - SURT20KRMXLT

2011-11-10T18:28:00.000-05:00

I have getting several requests for these very large Smart UPS units. We only see a few a year, and honestly its not a favorite of mine. SURT20KRXLT

First off, its the Smart UPS RT Online unit on steroids. Its a 12U non modular single phase unit. At $12,000 new its not that much less than a modular and scalable Symmetra unit. But unlike the Symmetra, this one can give you the full 20,000va.

But wow, if it fails.... you just got a 700 lb paper weight. And with no bypass and poor surge protection, this will be fun to replace.

U. P. aSked (You people asked): Big Box UPSes dont work on servers

2011-11-08T15:56:00.000-05:00

A frequent question from customers is... I bought a 1500 UPS from a big box store, but its not able to handle my two servers each with 500watt power supplies.

First off, nearly every big box retailer only sells APC backUPS or SmartUPS SC units, which are junk.
Second, those junky units use a technology that causes them to shut off during overload conditions.
Third, your server probably uses a PFC type power supply which tend to have a high inrush current, which these junky UPSes think are overloads.
Fourth, those junky UPSes require you to size your UPS at 125% of the rated Power supply wattage. (meaning a two servers with 500watts power supplies need at least 1250watts or a 1700va UPS)

The good news, is that real Smart UPS units from us can handle your server's power supplies at the actual load, without any necessary upsizing. So two servers with 500 watt power supplies probably can use a 1000va SmartUPS (100b), since the actual max load of the servers is about 300watts and the 100b is rated for 670watts.

Bottomline, all the units we sell are rated for the PFC type power supplies and need only be sized based on their true load. Of course call us or visit APC's site for actual loads.

Read more about PFC from APC's white paper

New Product - Network Management Card with Modem AP9618

2011-11-06T15:56:00.000-05:00

APC Network cards turn your UPS into a very dynamic unit. The AP9618 card incorporates all the basic network, environmental and relay control features, but adds a Out Of Band Management feature.

In other words, this card (qsc18p) allows you to monitor and manage the UPS by remote control regardless of whether the UPS is powered on. Also called Lights Out Management, this adds a powerful feature to units.

The qsc18 is available in our store along with the basic (qsc17), relay (qsc19), environmental (qsc19p), and 2nd generation card (qsc30). Since it still serves an important purpose, APC still makes it, even while they have discontinued its cousins.

Are 3000va units on the way out....

2011-10-13T21:28:00.000-04:00

Most people are familiar with Moore's Law, the doubling of computer power roughly every 18 months. But "Koomey's Law" may be more relevant to consumers.

Energy consumption for computing is improving just as fast as processing power. But, Koomey's Law is that at a fixed computing load, the amount of battery you need will fall by a factor of two every year and a half.

For UPS customers, it means that your typical server will need less and less power to operate. We allready see that in our business, where new baseline servers sip power at only a fraction of the older cousins. In the near future, the same server that meets your business's needs today might run on a Iphone or small frame unit using 30 or 40watts.

Random Part of the Month XIII - QWPAEFFICIENCY-MISC

2011-10-10T21:27:00.000-04:00

While APC makes most of their money on products... like everyone else they are now expanding aggressively into services.

This product, the QWPAEFFICIENCY-MISC is actually a ~$3750.00 report based on the physical site survey of your data center. The report focuses on efficiency and eliminating waste (I guess paying nearly $4000 isnt waste to them) Some of the nuggets of value

Reports efficiency values for the data center.
Identify the air distribution methodology.
Provide projected efficiency improvements for each recommendation to facilitate ROI calculations and capital expenditure justification.
Using the data center one-line diagram, create a list of all measurements required to accurately characterize the power use of the data center infrastructure elements.

New Product - the Ferro-resonant UPS.... FerrUPS

2011-10-08T21:12:00.000-04:00

Ferro-resonant UPSes are a 3rd type (or topology) of UPS. Unlike the line interactive or double conversion, ferro-resonant units use a transformer to hold energy long enough for the UPS to transfer to the batteries.

The most common is the FerrUPS. Branded under Best Power, Powerware and still made by Eaton. These type of units are very robust and highly sought. Many times we have have tried to get customers to leave their FerrUPS to no avail. So we have now started selling a few models.

FerrUPS are best used in industrial applications where the load may spike under certain condition. Since it continuously 'saturates' the internal transformer these spikes are absorbed without incident.

Look for our Ferrups 10kva later this month. Unlike some of the other UPSes, these units need quite a bit of work to be refurbished. DONT BUY A USED ONE!!! Buy from a trusted supplier like GreenlightUPS

Know UPS - MATERIAL SAFETY DATA SHEET on batteries

2011-10-06T21:12:00.000-04:00

Even though UPS units use safe Sealed Lead Acid batteries, they still are filled with dangerous chemicals... How dangerous? According to the NFPA, Sulfuric Acid has a Hazard Rating of 3/0/2

While that is pretty scary, the reality is that very few formal Control Measures are required since the acid is safely stored in inside the batts. Read more from the MSDS sheet from Powersonic

But over 65% of the battery is actually lead compounds. And while sealed in the battery. its safe, lead overexposure is one of the most common overexposures found in industry and is a leading cause of workplace illness.

KnowUPS - Eco Mode

2011-09-16T08:44:00.000-04:00

Today everything needs to be "Green." And suppliers, vendors (we are GreenlightUPS after all), manufacturers, and customers all want to be part of it.

The problem is that not all Green things are great. (Pond scum in my pool for one)

One potentially bad Green thing on UPSes is the optional "Eco Mode" found on many new units. Eco Mode is a sexy marketing term to essentially mean Line Interactive operation. Since UPSes that operate as Line Interactive only switch over to battery during an outage (allbeit after 0.005 seconds) the UPS does not use up energy when there are no problems. Online UPS are always online... always using energy.

The rub is that Eco Mode is found on those expensive Online UPS units. So you pay double the price for a UPS for it to be online and then you downgrade it (um.. upgrade it) to operate it in Eco Mode.

Kinda stupid.... especially when Eco Mode saves 3.3% or 10$ a year per 1000watts. Learn more from APC's greenpaper

Random Part of the Month XII - SY500K500DL-PD

2011-09-13T20:08:00.000-04:00

If you do the product search feature on Google with the term "APC," the most expensive item available "off the shelf" at a major retailer is the SY500K500DL-PD.

Its a Symmetra PX 3phase unit rated for 500kW. It weighs a staggering 20,858 pounds! The electrical requirements of 745 amps of 480volt power will dim the lights of your neighbors when you start this sucker up.

Its on "Super Sale" at RestockIT for $365,843.94... and they claim to have 200 in stock!

And if you have 1 really important server you want to run on this puppy... you only get 30:34hours of runtime. But if you are looking to warm your offices this winter, this sucker will put out a jaw-dropping 62515 BTUs. That more than a giant Jobsite kerosene heater. Get the s'mores... and someone else's credit card.

New Product - A 3phase Unit that fits in your hand.

2011-09-10T20:17:00.001-04:00

As an early proponent of APC's Symmetra PX's class of 3phase UPS units, its rare for us to recommend any other style, let alone brand. But when we find a 3phase unit that meets such an obvious need AND offers so many great specs and features ... its deserves our attention.

The Gamatronic PowerPlus SA3, is a 10kva 120/208 3phase Unit that is just a bit bigger than a CPU tower. While it doesnt fit in the palm of your hand, its much smaller than the 42U cabinets, that the APC Symmetra PX and VT units.

The Gamatronics unit offers many of the same power conditioning and online topology found in the other makers, but at a great price point and small footprint.

We got our first SA3 from a distributor liquidating some old stock. It was never used, but couldnt be sold as new anymore.

So take a peek at the GAS10....

Rumble in the Rack IV: APC 1.5k versus Liebert 1.5k

2011-09-07T18:03:00.001-04:00

Its On... Can the very popular and best selling SUA1500RM2U ever meets its match?
Today, the Liebert GXT2 1500 enters the ring.. for Rumble in the Rack IV..

The APC SUA1500RM2U is frequently requested by people needing a 120volt UPS for small telcom loads. Its a 2U unit, priced at about $300. The Liebert is also a 2U, but a bit more money.

After they Rumble... this what we found...

APC Smart UPS 1500 StoreLink (402b)

Is Cheaper
has 6 output (versus 4 for Liebert)

Liebert GXT2 1500 StoreLink (lg412)

More VA at 1500va (versus 1440va for APC)
More Watts 1050 (versus 980watts for APC)
Online Double Conversion Mode for allways On protection (APC is line interactive)
Expandable Runtime (no expandable capability for APC)
Lighter at 51lbs (versus 63lbs for APC)
200% Overload ability for 8 cycles (versus 100% limit for APC)

Both Units have

Similar batteries & run-time (13mins at half load)
Similar control options (USB and NetCard Option)
Minimal TVSS and EMI/RFI Filers

WINNER and its a lopsided win at that

Liebert GXT2 1500

Buy It Here

This Blog is getting bloated

2011-09-06T09:08:00.002-04:00

Here are some of our popular blog series links

Random Part of the Month --- the best and worst from APC's product catalogue
Know UPS --- briefings about UPS technical features
Rumble in the Rack -- head to head comparisons between UPS units
UPS University --- talks about UPS design, terms, data center applications, and operation
U People aSked it --- sort of actual questions and answers about the UPS world

U. P. aSked (You people asked): Most Important Specs

2011-09-05T21:29:00.001-04:00

Hello,

I visited your site and am overwhelmed on what type of UPS to choose. My IT adviser recommended me getting an APC SUA3000RM2U, but there seems to many other choices that look better? Why is so special about the SUA3000RM2U unit?

-RW

Rich,

I am glad to help demystify choosing a UPS. Essentially your IT tech is recommending a 3kva line interactive UPS. The SUA3000RM2U (302b) is very popular unit, but has some drawbacks.

The SUA unit does NOT offer extended runtimes. If you want more than 15mins of backup time in the future, this unit is not for you. You will need to upgrade to the SUA3000RMXL3U (313b) to have this feature.
The SUA is over $500, but the older 3U version SU3000RM3U (303) is about $100 less and offers more runtime.
The SUA does not include a Network management card. You'll need to spend another $75 for your IT tech to control the unit. Consider the Liebert 3000va 2U (lp312) unit which has the network card included. Look at my blog for a good in depth comparison.

Sincerely,

Bob

ReBlog... APC's Currents Magazine

2011-09-03T20:17:00.000-04:00

APC's quasi monthly Newsletter, Currents, is out and had some interesting tidbits to talk about

TV Protection
Realistic Small Server Room Cooling Techniques

TV Protection.

While not a focus for GreenlightUPS, many of customers have requested protection for their high end TVs and Audio systems. We still recommend a Panel Mount surge suppression system as a first line of defense. APC has launched its J Type Power Conditioners to protect, backup, and filter this type of equipment. While the J-Type is indeed a good looking unit, there is nothing wrong with using less expensive Smart UPS 1000va unit (100b) for your digital AV equipment.

As mentioned in Electronic House Magazine, UPSes work best for Media Servers, Streaming Boxes, DVRs, Satellite & Cable Boxes, DLP Screens, and Projectors. Dont use them on Amps as the demands for peak audio wattage could be viewed as a surge and clamped.

Small Server Room Cooling Approaches

All the major makers of UPS units, have large Cooling divisions in their companies. I tend to find the whole Cool and Hot row religion a bit idealistic to implement in a growing business, but many people eat that shit up. APC however, reminds us that the first priority is not Cooling, but heat removal.

Simply put, put a fan at the top of the closet that draws heat out. Then put a grille lower, to let the cool air in.

Random Part of the Month XI - EPW9

2011-07-31T13:18:00.000-04:00

Like other Random Parts of the Month, here is another stupid part from APC.... a $1200 switch... the EPO InfraStruXure Box.

The EPW9 is an emergency power off push button that turns off the UPS in the event of a problem. APC explains...

APC’s Emergency Power Off (EPO) System consists of one or more wall-mounted, push-button EPO
boxes. Each EPO box provides a single point of equipment shutdown for up to eight APC InfraStruXure
devices and one third-party device (such as an upstream breaker), using Normally Open (NO) contact
closure connections. You can cascade an EPO box with other EPO boxes to support multiple points of
equipment shutdown.

While EPO is good and required thing...Why you would pay $1200, when this mushroom plunger switch does the same thing is beyond me. But thats why APC makes billions of dollars and I still eat ramen noodles.

G3 versus G4

2011-07-29T00:24:00.000-04:00

I really hate APC Part Numbers... probably because my job requires me to listen to people reading their part numbers out over the phone. If I get 1 digit of the typical 12 alphanumeric part number wrong, it can be entirely different unit....

So, I have simple 3-6 digit part numbers located on every picture. The APC SURTD5000RMXLT3U-1TF3 is simply 593g4k.

On the APC SmartUPS Online RT Series, I added "G3" at the end of the normal part number to originally designate it as the 3rd generation. While I later learned this was incorrect, the G3 designation stuck. So when APC tweaked the series, I just changed the G3 to G4.

So what was the tweek?.... The only noticeable change is that they replaced the serial RS232 com type port with a Cat5 type RS232 type port.

Also, there are some minor changes such as thermal profile and different certifications, but all in all they are functionally the same.

But for me, its a big difference (sometimes over $250) because the

The G3 is older (before 2009)
The G4 is newer and comes with rails ($30), the AP9619 card ($159)

Financing Options

2011-07-28T23:42:00.000-04:00

I sometimes joke to people that we offer Net negative 10 days... meaning your payment is past due before we ship it.

But, as businesses are struggling to grow and upgrade in this new normal economy, we have been getting many more requests for financing and terms.

To be honest, I swore never to get back into offering "Terms." When we were mostly electricians and electrical contractors, this proved disastrous. The one advantage of a online retail business is we get paid first.

But, we have been very successful recently and haven't got stuck with any bad debts, so maybe we will consider opening up the terms and financing arms...

The first rule of Terms Club is you dont talk about Terms Club. The second rule of Terms Club is you DO NOT talk about Terms Club

But I am violating the Rules, because I want people to know that we will consider it. Here are the real rules

We will give Net n, where n is 30days minus your D&B Paydex score. If D&B says you pay in 30 days, you get 30days. If you pay in 35 days, its net 25, etc.
We need the email address and phone number for the AP person that writes the checks. They must answer calls and respond to messages timely.
Net means payment must be received by that date. 1 day over and you will NEVER get terms again.
There is NO warranty on units until they have been paid.

Efficiency in UPSes - Part 2

2011-07-26T21:28:00.000-04:00

Continuing from last post on Efficiency...

Besides Power Factory Efficiency, the other type of Efficiency is Topology Efficiency.

This type of Efficiency is more related to energy savings, but honestly more gimmicky as manufacturers tout their green credentials.

Simply put, Topology Efficiency is the amount of energy used to operate the UPS. Lets recall Topology... Its is the method of providing backup power. Online Topology, is simply that its allways online.. allways giving you clean power. Line Interactive Topology uses a 'switch' to turn on the UPS power if something in the line goes bad. Obviously, Online - since its always on - will use more energy than a line interactive that just turns on when needed.

So line interactive UPSes are more efficient than online types can ever be. Within the Line Interactive model mix, there are a few super efficient models. The APC 5th generation units, (like the 200v) dont switch over to the energy intensive UPS power, unless its really necessary. Some sort of magic corrects alot of the minor power problems without energizing those line interactive transformers. Older units, didnt really care, and just switched over - saying to hell with a few watts.

And thats the problem... this super efficient line interactive UPS like the 5th gen APC save so little power, thats its kind of stupid. The idea that saving of 5 kWh ($1) a month when your server room is set at 60 degrees and you are running 10,000 watts of servers is pointless. Its like ordering a Diet Coke with a Bacon Double Big Mac, Fries, Milkshake and a bucket of lard.

Bottomline, the Topology of the UPS dictates its efficiency by determining how often the unit runs.

GreenlightUPS is not a shipping service or underground research facility

2011-07-25T19:55:00.000-04:00

While our friends in San Francisco get this alot, yesterday was our first day of having a customer come in with a bunch of presents looking to ship them UPS.

Also, yesterday, we got a delivery from UPS Freight, and the driver asked whether we are some subsidiary of UPS researching green technology. (that was funny.... as our warehouse is in a kinda of dumpy location, not a place a multi-billion dollar company like UPS would setup shop creating nano-green technology)

To answer both, no... we dont ship packages to your Grandma and no we dont work for UPS's Green Energy Initiative. (or maybe we do... and I just cant tell you yet.... )

Greenlight UPS's name was inspired by the display on APC Uninterruptible Power Supply units that lights ups Green when everything is ok.

Efficiency in UPSes - Part 1

2011-07-22T07:55:00.000-04:00

Efficiency is a great buzzword today, but has several meanings in the UPS world. None of the definitions reflect what most people think of when they buy fuel efficient car, or energy efficient light bulb.

Definition 1 - Power Factor Efficiency
As I have said before, UPSes are sized in Volt Amps (VA). While the actual Wattage is usually a factor of that VA, depending on the UPS.
A 1000va UPSes can offer 900, 670, or even 500watts, depending on its Power Factor efficiency . Larger and even more expensive units can have the same apparent low efficiency. The $3500 SURTD5000XLT has a 70% Power Factor Efficiency, delivering 3500watts per 5000va unit. The MGE 5kva unit is really efficient in Power Factor, as it delivers 4500watts per 5000va unit. Whereas, the Symmetra PX UPS is 100% efficient, delivering 10kw per 10kva.

Bottomline, while this is the most important spec in UPSes, the lower power factor efficiency doesn't necessarily mean that a unit is wasting energy like our common sense of efficiency..

When a Watt is not a Watt

2011-07-20T00:09:00.000-04:00

As mentioned before, UPSes are rated in VA or volt-amps, which is similar to Watts. But, power supplies, speakers, etc are also rated in Watts.

The problem is that these two Watt metrics dont correlate to each other.

Example 1: Dell's Poweredge T710 advertises two 1100watt Power Supplies, but according to APC, uses only 694watts.

Example 2: Dell's m1000e Blade Server can hold six 2700watt Power supplies (16,200watts?), but uses only 4100watts.

Bottomline, like speakers, manufacturers use "Wattage" to imply the "mightiness" of a unit. Your desktop that has a 500w neon, water cooled power supply, barely uses 150watts, but 500watts sounds cool. Just know that many times these are Marketing Specs and not electrical specs.

When sizing UPS units, a simple trick is to look at the equipment's plug. The load cant be any more than 80% of the plug. So a blade server with a C14 12amp outlet, cant be any larger than 1150 watts.

A 3000va Unit that outputs 3600watts

2011-07-08T00:06:00.002-04:00

A customer today reminded me of a great spec on the Tripplite 3000 CRM UPS unit (tl314)

As I have mentioned before, usually a 3000va unit can only provide 2800watts, if its very efficient. But since this Tripplite unit can be hardwired, the unit can actually output a full 3600watts. How does that happen?

Well probably because the Tripplite engineers upped the specs on the components, so they can handle 4kva or 40amps of power. While it is good practice to overspec in manufacturing, very few companies still do it.

Tripplite's commitment to better quality UPSes show on this unit... And their effort means they have the largest 120volt UPS unit available.

U. P. Asked (You people asked)

2011-07-06T10:59:00.001-04:00

You asked:
[Bob] once told me that the one I had [3rd Gen Smart UPS 315 ] was better than the newer ones [4th Gen SUA 3000 - 310b]. Is that still the case?

I responded
The 3rd generation units like yours were built in the US. APC was small and performance driven product. Costs of UPSes were minor in the IT world and they could afford to use the best labor and components. Around the time the 4th generation units were released in 2004, cost consciousness in IT had arrived. Outsourcing to the 3rd world, pricing pressures and many up starts forced APC to make cost concessions. Therefore these units were lower quality. Most people think after Schneider bought them in 07, did they go back to making better equipment.
Bottomline an unused 2003 SmartUPS like the one you have is a better product than today's 2011 SmartUPS. But, after 10 or so years of use that older 3rd gen unit cant be as good as even a poor quality newer one.

New Racks in Stock

2011-07-04T08:36:00.000-04:00

We are updating our Rack section of our website to reflex some new inventory.

We have some nice mid size telco racks and several 42U/48U Dell and APC racks.

Still no 25U units, though.. we are backordered 2 of those... :-(

New Hire...we grow to serve you

2011-06-30T00:49:00.000-04:00

Good news... GreenlightUPS is growing enough to bring an additional tech on board.

Joining the Team is Stephen Kingston. He will help with warehouse, assembly and delivery. This will allow the rest of the team to focus more on serving your needs in the most cost effective and efficient manner.

The Reduced Runtime Model Series...

2011-06-20T20:46:00.002-04:00

Normally, Reduced Runtime, would be something that would be undesirable in battery backups systems. The whole point is to have runtime, so reducing it seems dumb.... but not in some cases...

Our Reduced Runtime series (designated xxR) is when we take the normal battery and replace it with a smaller one. This smaller battery costs less and the overall unit is less expensive.

Our first product in the Reduced Runtime series is the APC SmartUPS 3000 Tower (310R). In this case the four 12v 18ah batteries are replaced with four 12v 7ah batteries. Why?

Many people with copiers need the 3000va capacity of the unit, but dont need the 30mins of runtime. So the 310R can protect these items for $100 less.

Look for future Reduced Runtime models including

Tripplite SmartOnline 10kva ... to1096R
APC SmartUPS 1500va Desktop... 402bR

Random Part of the Month X - AP8641

2011-06-08T23:42:00.000-04:00

I just recently started selling PDUs, and it has always amazed me how they can be so expensive.

Case in point, the APC Switched Rack 2G 0U 30amp PDU.

This glorified surge strip sells for $1450.00 from APC.

Sure, its has some neat user controls and a few too many ports... but why do blue LCD screens cost so much? This unit's earlier version AP7941 can be found at our website for $259.

KnowUPS - Power Conditioning

2011-06-06T23:41:00.000-04:00

Frequently, I get requests for the best UPS for power quality and conditioning.

To answer that, I can offer 2 different approaches.

TOPOLOGY
Topology is, loosely, the type of UPS mechanism. I have written in depth about this. Online and Line Interactive are the common ones. Simply, Online type is where output power is always being made by the UPS and Line Interactive type online "makes" the power if something goes wrong. So, if you want UPS to manufacturer the power output all the time, Online is the best topology. But that doesn't necessarily mean its the "best power."

OFFICIAL POWER QUALITY
Technically, power quality is the quality of the voltage; specifically, transient content and voltage magnitudes. UPSes address both problems and offer redress. No matter whether its an Online or Line Interactive type UPS, they output a voltage plus or minus their operational tolerance.
A quick check of some common units, shows some differences in Output Voltage

APC Line Interactive 5kva (585AB) = +/- 5%
APC Online 5kva (593g4) = +/- 3%
Tripplite Online 5kva (to595) = +/- 2%
Eaton Line Interactive (p5593) = +/- 8%
Eaton Online 5kva (p9593v) = +/- 2%

So if the goal is 208volt (or other selected voltage output), the best power quality unit is a Online UPS, but with low ranges such as the Eaton or Tripplite.

But, as I have said many times, most IT equipment runs off its own power supply, and the small differences of power quality in the specs isnt worth worry about.

Worry about the quality (or absence) of your Transient Voltage Surge Suppressor.... thats where real power quality should be addressed

My Inner UPS Child... recalls the SmartUPS 2200 208v XL 5U

2011-06-02T23:51:00.001-04:00

This unit is famous for being one of the units that I would bring to a deserted island, first hurt my back on, and drove 150 miles out of the way on a vacation to pickup.

The reason is that its a great unit. It take four large batteries for serious runtime, it has a XL port that can connect to the Super BigMomma battery pack, and has a couple 120volt outputs for non high voltage loads.

While we havent sold that many recently, its still a very good unit and $429 its a best buy

So buy one today, and relive 2003 with a SARS mask, your first Itunes purchase and with no fear of another East coast blackout

Most requested unit we dont have

2011-06-01T23:35:00.000-04:00

I would love to be able fulfill every request that we get, but the nature of the refurbished marketplace means I dont have control of availability. All it takes is for a major University, national chain or large IT reseller to put a bounty on certain items and the prices and availability get skewed.

This month's challenges...

The Dell Branded SmartUPS 3U - DL3000RM3U (303b) We have a standing purchase order for 40 that we cant fulfill. The caused the price to jumped from $419 to $479 to adjust to the demand
The 120v Online 3U APC - SURTA3000RMXL3U (313g4) is on permanent backorder. As soon as I get one in it gets snapped up. I sold the last one for $909, which is $200 more than the price earlier this year.

RBCs and Battery Page Updated

2011-05-30T23:34:00.000-04:00

After several requests, we have re-worked our Replacement Battery store page. The new pages will help you replace batteries on many server grade units.

We offer the Complete Replacement Battery packs (RBC) and Replacement Batteries Only (RBO) which require you to re-use the existing trays and leads.

If you need help finding your RB#, contact us or visit this page

Rumble in the Rack III: APC 3kva XL versus Tripplite 3kva XL

2011-05-27T22:41:00.000-04:00

APC SmartUPS 3000va XL 3U [313b]

vs.

Tripplite SmartPro 3000va XL 2U [tl312w]

APC Products outsell Tripplite at my store 20 to 1. But its a shame, because on so many fronts, Tripplite is a better buy. Take our best 3kva seller from APC versus the unloved Tripplite version

Both units

Extended Run capatable at 48vdc
3000va - 120v
Line Interactive Topology - Pure Sinewave

APC 3000va's Advantages

More runtime (3U frame v. 2U frame though)
Black in color

Tripplite's Advantage

$170 cheaper
Native USB support
Twistlock output receptacle for easy PDU connection
Native 20amp T type receptacles
Lighter... Can ship via Fedex (APC must be freighted)

WINNER! Tripplite

KnowUPS - Audible Noise

2011-05-25T00:38:00.000-04:00

A quick check of 3000va Models across various manufacturers found that they all have same noise level.

A customer wanted the quietest 3kva UPS. After checking APC's SUA3000, Eaton's Online PW9130, Liebert's PSI3, and Tripplite's SU3000 units, I found all of them had Audible Noise at 1 meter of 53-55db.

I then checked premium APC models, Rack versions, etc and couldnt find anything quieter. Finally, I found the SMT3000 5th Gen APC unit that had only 45db rating.

I guess all makers use the same basic components and have no motivation to distinguish themselves on db level.

The UPS for Imaging equipment.. affordable 3kva unit

2011-05-23T22:38:00.000-04:00

Many customers want to protect their laser imaging equipment with a UPS. However, since laser printers tend to have a high amperage initial draw at startup, most UPSes cant handle the unit. So while the load might only be 500va, it needs 2 or 3 times to start.

In the past, we have sold customers our 3kva units. However, most tower frame UPSes are filled with large expensive batteries to sustain the 3kva load over 30mins. We found our imaging customers only needed a few moments, so the expensive solutions are overkill.

GreenlightUPS is proud to announce a solution... the APC 3kva Tower with smaller batteries.

At $349, its $100-200 less that the standard 3kva unit. If you are interested, make sure you check your specs and plugs and give us a call to order.

If anyone needs it, we can retrofit the standard 208volt model (390) into a reduced runtime unit as well

Your desires realized... at least your UPS desires

2011-05-23T00:20:00.000-04:00

Introducing our Solution Series, where we try to package a power solution to meet a common need.

Our first is the I want a UPS to power a panel

The SOLUTION... use a ups with an isolation type transformer. When you electrically power a subpanel, you feed the panel with 2 hots, a neutral and ground. However, normal UPSes dont have a separate neutral, more of a floating neutral. This prevents you from connecting these directly to a panel.
With the addition of a transformer, we can generate a fixed neutral and combine the 3wire output of the UPS with new fixed neutral. This 4 wire system can connect to the panel

My pick is the APC Smart UPS Online 5kva unit (593g4) with 5kva Iso (xf5iso) Transformer...

SURTD5000RMXLT3U - 593g4 - $1399.00
SURT003 - xf5iso - $495.00

Store Price is $1894.00, but if you mention our blog, you can get it for 10% off ($1705) by using the coupon 4178 at checkout

Struggling for a SFW reference for a small powerful package.... the Tripplite 16kva 8U

2011-05-19T23:45:00.000-04:00

After drooling over the idea of this item... we finally got one in.

its a 16kva Tripplite UPS in a 445lbs 8U Rackmount frame.

That's right, this sweet baby was made in Xingang China. Retails for about $9009.95. Its got a textured black bezel, cobalt blue steel and a hair trigger... That's right. Shop smart. Shop S-Mart

This design is, as my friend says, ridiculous.

It is a split phase 4wire system, so it can output 120/208/240 through the crazy 14 port detachable PDU port.

We got this smoking hot baby at our store for $5999 with a extended warranty from Tripplite.

Random Part of the Month IX - AR4024

2011-05-18T23:26:00.001-04:00

Call it the Ethan Allen Rack Cabinet from APC. Instead of boring black aluminum, here is a rack cabinet that matches all the quality pressboard furniture in your office.

The AR4024 has a 24U 4 post SX frame, integrated cooling system, sound dampening foam, multiple PDUs, and smooth Oak veneer finish.

At $5025, this has to be the biggest waste of money.

Not surprisingly, we got a scratch and dent unit in a couple weeks ago and it sold within days of arrival for $200. Thats about what it should be worth

PDU Store Department EXPLODING with Sales

2011-05-16T23:18:00.000-04:00

For years, I used to send my customers to PDU Direct for their PDU needs. However, by chance I got a bunch of PDUs in. And when local shoppers would arrive, PDUs started selling.

So now my growing stash is on the web... They are divided in Basic, Metered and Switched. Most of the units are APC, but I do have some Powerware and Chatworth basic units.

Prices seem to be fixed in the store, but the real secret is to pitch me a offer. I might just take it.

New Look on the Website Store

2011-05-15T23:18:00.000-04:00

I did a little re-organizing on the store, to help you find what you are looking for.

In this case, I added sub categories to the main departments of the store. Then along the middle, I included some popular pages... Favorites, Late Model/Newest, Spec Grade and Solutions.

More on each of those later, but I hope you like to the new organization.

I also modified the side department tabs

Sorry for no posts

2011-05-15T23:11:00.000-04:00

After a brisk blogging month of Feb and Mar, I sorta fizzled out in April.
We'll I'm back on the bus, and ready to tackle your UPS questions.
PS: Thanks M.R. for the encouragement

KnowUPS - Location Location Location

2011-04-15T04:19:00.000-04:00

Just like choosing the best location should be mantra to ensure longevity of a restaurant, placing your UPS is critical as well.

Liebert recommend a full 12" between the back of the UPS and the wall. Air flow for the heat exchange of the UPS batteries is essential. So dont be like this good sushi restaurant, (which was too cramped, IMHO) and be smart and give your UPS some room to breathe.

When a Refurb is a New UPS....

2011-04-08T01:51:00.000-04:00

Introducing the Better than New system from GreenlightUPS.

On certain models, we now offer official APC Extended Warranties on some items. This is possible when an item arrives unused from liquidators or warehouse surplus stock as is still under warranty. Then we acquire an APC extended warranty license for that model. We next register the unit and the license to you. The result is a system that has up to 5 years of warranty on the unit.

Thats better than new, and its only from GreenlightUPS.

Our first Better than New is on the SmartUPS 5000 3U. This model has an APC warranty through October 2014 (593g4+sp3)

KnowUPS - DC Battery Architecture

2011-04-07T11:59:00.001-04:00

I was talking with a customer this week about extended run battery packs and realized that one spec that is never really highlighted is the DC battery voltage. While normally meaningless, its is very important in extended run battery cabinets. This is because when you connect extra batteries, it must match the internal battery voltage to properly be paralleled in To prevent catastrophe, each UPS maker creates stupid little plugs that prevent you from plugging the wrong voltage in.

Common string DC voltages range from 24volt to 240volt... here are some guides

24 volt = APC 1000va and under (SUA1000XL / 110b)
48 volt = APC 2nd -4th Gen units (SUA3000RMXL3U / 333b), Eaton/Liebert/HP 1.5-2.0kva units (GXT2000XT120 / lg212), Tripplites (SMART2200RT2U // tl312), 5th Gen APC 1500va (SMX1500RT2U / 412v)
72 volt = Tripplites (SU3000RTXL3U / to313) and Liebert 3000va systems (PS3000RT3-120XR / lp312)
120 volt = HP (R3000XR / hp312), Eaton 3kva units (P5392v), Symmetra
144 volt = Liebert 6000va (GXT2-6000RT208v)
192 volt = APC Smart UPS RT (SURTD5000XLT / 593g4)
240 volt = Liebert 10kva, Eaton 6kva, Tripplite 5000va SmartOnline (to595)

Random Part of the Month VIII - SMX3000RMLV2U

2011-04-05T00:22:00.001-04:00

The end is nigh...

One of the last available 4th generation 120v products has finally been discontinued, the SUA3000RMXL3U (my sku 333b) and the SMX3000RMLV2U was released in its place.

Instead calling them the 5th Generation or "V", like I call them, APC and vendors have settled on Smart UPS X.

Comparing the 2 models, we see that APC has managed to improve runtimes with a new battery pack in a 2U frame. It has also dropped the surge suppression rating, increased the warranty to 3 years, and dropped the BTU footprint. Learn more about the 5th Gen / Smart X here

Additionally, APC has left the 48 volt DC architecture and gone to 120volt. DC. This will allow those upgrading to be forced into pitching their existing 48v battery packs for the new 120volt system.

While, I dont anticipate getting too many of these in yet, when they do arrive, it will be designated 312v

We finally Greenlight the selling of PDUs

2011-04-02T22:27:00.000-04:00

More and more people want them, so I will start selling them.

My main hesitance was that APC makes about 60 different models which is very difficult for me to stock and sell cost effectively. So after studying what you have asked for I have launched a 7 item PDU offering.

I have the cheapy "1U powerstrips" (d111) for everyday use, the most requested QuadC19 (d231) for bladecenters, and 30amp Zero U cabinet fillers in low (d130) and high voltage with basic (d230), metered (dm230) and switched (ds230) styles.

View the entire category page

Maybe the default method should be Air Cargo

2011-03-31T08:13:00.002-04:00

In a matter of just a couple weeks, we have had 4 Air Cargo deliveries. (and ironically 1 year from when we first started it)
In some cases its cheaper, other times its just faster....and then sometimes cheaper and faster.

How does it work?

Your unit gets primary processing
We take it to the airport (FLL)
We put it on a flight and give you tracking info
You pick it up at the Airport's cargo facility area

Basic guidelines

Must be under 150lbs
Typically ~$1.50 per pound (rate is based on actual cargo rate)
Sometimes a delivery charge is applied for us to go the airport (during rush hour)
Must be prepaid orders
Anywhere Delta, Southwest, American Airlines, and now Alaska Air fly

A Number 4 with a Coke and SNMP Card... Bundle Combos are back

2011-03-30T11:50:00.001-04:00

While not as tasty as a Deluxe Spicy Chik-fil-A Sandwich... we offer UPS bundles of our popular extended run items.

These include the main UPS unit and Extended Run Cabinet both with fresh from the farm batteries, with some including a network management card and rail kit at usually 10-20% off store prices. Plus shipping is cheaper!

The bundles include APC, Powerware, Liebert, HP, Tripplite in both Online or Line Interactive Topology for 120 or high voltage.

HP 3000va 120v [hp312e]
Liebert 3000va 120v [lp312e]
Tripplite 3000va 120v Online [to313e]
APC 3000va 120v [313be]
Powerware 3000va 208v [p5392ie]

Ice Road Truckers... shipping to Alaska

2011-03-29T00:34:00.001-04:00

We have shipped around the world including Poland, France, Korea, South Africa, and Brasil, but shipping 3541 miles to Alaska presented some challenges.

Theoretically, UPS, FedEx and USPS can offer ground shipment but do so at an incredible price. A 1000va desktop and XL pack (#125) costs over $500 going UPS and takes 20 days. Dont ask how much more the postal service was.

But again saving time and money... we shipped it via Alaska Airlines to Juneau airport for about $175

Looking for Easter Eggs at the GreenlightUPS site

2011-03-27T22:07:00.000-04:00

As spring start and we count down to easter. How appropriate to share with you some Easter Eggs from the website.

To get a spec page on any part... goto Greenlightups.com/go/mysku.htm
To see a pixs of items as they ship... goto Greenlightups.com/outbound/
To see a fake home page for some dark, miserablist, Absinthe-induced philosophy that I created for a Sewanee project... click here
Want to move next door? We have a space to lease and its on our server here

My Inner UPS Child... recalls a TO212C

2011-03-26T21:56:00.000-04:00

As part of my new occasional series, I will highlight a unit that fosters strong positive feelings from my emotional childhood memory. Most of these units are from a bygone era (circa 2006).

The first is the Tripplite 2200va Online 2U XL UPS.

And why not? The TO212C is small and lightweight. Its has a smooth face cover, small pimple-esque LEDs, and offers to room to grow runtime. Even its price at under $500, recalls a simpler time when gas was only $3.25 a gallon.

Adapt a few today

Random Part of the Month VII - 450va Rack Mount UPS

2011-03-24T21:48:00.001-04:00

I almost laughed, but APC makes a 450va 1U rack mount UPS unit..... SC450RM1U

God only knows what this will run and for how long.

Turns out it will put out a massive 280watts for 4 minutes.

The only good news, is that at 25 or so pounds, it wont hurt anyone's back putting it in the rack. If I decide to sell it, I think the refurbished price would be that I pay you to take it.

Why wait for 5 days... get your unit today!

2011-03-24T09:37:00.001-04:00

Pop Quiz....

If a truck carrying a UPS leaves from point A and goes 2500 miles moving at 40mph, when would the UPS arrive?

Answer

In 12hours if you upgrade to Same Day delivery by Air Cargo.

Our customer was facing a $150 truck freight bill to get some items to AZ in 5 days. By choosing to pickup the items at the Airport, he paid $50 more and got them in 12 hours.

Need something NOW? Call us at 561-523-1925

UPSes way beyond the capacity of GreenlightUPS

2011-03-23T23:02:00.000-04:00

During the coverage of the horrible events in Japan, it was reported that the UPS systems failed at the nuclear power plant. This is why the pumps failed and coolant dried up.

That got me thinking, what kind of UPS do you install at a nuclear power plant?

Not surprisingly, its not much different than the units we sell. Nuclear plants need power to run regular pumps, some computers, and some crazy loud horns to announce the end of the world.

APC doesnt make them, but a company called "Chloride" makes them...

While I would recommend a name change for that company (Chloride.. sounds like hydrochloric acid or Chlorine gas... i guess when you are protecting things that can kill millions, naming your company after a chemical that kills only thousands is strangely sane)

Take a look at their brochure and see how many of the same issues and worries you have are also considered by the nuke guys.

New Section for Network Cards

2011-03-23T21:37:00.000-04:00

As you may have noticed we now have more than APC UPS units...

Since we have added a large listing of Powerware, Tripplite, Liebert and HP units, we have added the network cards that go with them.

We dont keep that many of these in stock, so be warned. Backorders are likely.

Also condition varies considerably. The prices listed are for nearly new, open, or surplus. If we have a "used" one, expect to save an additional 33% off these prices

Shop here...

Most read and commented posting (About Generators)

2011-02-27T10:53:00.000-05:00

To be honest, as you may recall, I asked only for this blog not to be a dry as the dryer lint blog. (which seems to have disappeared like that lost sock)

So its sort of surprising, that so many people turn to this Blog. And what most people want according to Google statistics, at least on this blog, is facts about Generations and UPSes

So while I prepare a treatise on this this subject for my 150th Blog post coming out next week... let review what I have said so far....
http://webobups.blogspot.com/2010/10/when-you-need-online-upses.html
http://webobups.blogspot.com/2010/09/dream-rack-visualized.html
http://webobups.blogspot.com/2009/10/dumptruck-of-batteries-or-generator.html
http://webobups.blogspot.com/2009/05/5000-upsgenerator-solution-for-server.html
http://webobups.blogspot.com/2009/05/upses-and-generators.html

Best Posts of 2011

2011-02-25T22:44:00.001-05:00

So you think its too early to a Best Of ... post.
Well I have been in rare form and want to highlight some of these better posts.

3phase UPS Systems - Design Ideas and Considerations
He is a Swell Wink, even if his Glitches give me Saggy Bumps (about Power Quality)
What does "refurbished" really mean
Sizing a UPS for Non Computer loads
Our dedicated Symmeta site.. SymmUPS.com

Quick Buying Guide and Thoughts

2011-02-23T22:23:00.000-05:00

We'll wait until March to revisit our popular blog series "Best UPS for a Desert Island", but for now lets do a quick update based on recent requests.

Best Unit for Imaging Machines ... the SUA3000 - 300b
You need the 3000va for the startups

Best 3000va Value ... the DL3000RM3U - 303b
The best model, made black, now for less

Really stupid purchase ... SUA3000RMXL3U - 333b
More money than the Double conversion version 313g3

Best unit for relay racks ... SU14000RMXLB3U - 413b
Extend-able runtime, good base battery system

Best 5kva version ... DL5000RMT5U - 595b
5U for lots of runtime, Extendable runtime feature, black face plates

Best 8kva system .. SU7500RMXLT - 796g3
take 500va less and save $300 over the 896g3

Inflation on UPS units

2011-02-22T09:57:00.003-05:00

The Fed says consumer prices have remained near flat over the last 12months, however prices have changed here at GreenlightUPS.

Like any inventory-scarce business, prices change to reflect demand. So as frequent customers know, certain items have had big price increases.

Biggest Price Change and 2nd biggest seller - SU3000RMXL3U - 313B

from $399 in 2008 to $589 in 2011
Why...
More and more people want black units and want the ability to add runtime in the future. Curiously, less than 10% actually buy the extended run packs at the time of sale.

Biggest Seller Price Change - SU3000RM3U - 303

from $379 in 2008 to $409 in 2011

Why...

As the SU3000RM3U turns 10 years old, most people are wanting the newer models, keeping the price low.

Our 3rd biggest seller price change - SUA3000RM2U - 302b

from $389 in 2008 to $469 in 2011

Why...

As you all know, I hate this unit. Its poor quality, but people keep demanding it. The price change reflects the extra refurbishment work required to make these work

More Sizing UPS challenges

2011-02-19T23:13:00.001-05:00

Here is another case of nameplate sizing of equipment.
I got a request for a UPS to power a fridge that uses 7.5amps that will last 4 hours.

7.5amps times 120volt is 900volt amps or va. But thats not the whole story.....

Step one is to understand the amperage value and its meaning for the size of the UPS. There are 4 "types" of amperages

FLA or full load amps or nameplate amperage (this is usually on the equipment by the manufacturer) It is used to size the circuitry. That amperage never happens in real life.
SLA or starting load amps or the peak load that occurs just briefly during startup (depending on the motor, this can be 2 to 10 times the FLA)
RLA or running load amps (this is the average amperage during operation)
RMS Amps or Observed amps (this is when someone actually measures the amperage during the equipment's operation)

So, 7.5amps is probably the FLA and the SLA on a new high efficiency equipment is about 15amps. (15a x 120v = 1800va). So any 3000va UPS will work

Step two is to understand the actual load over the 4 hour outage period. Fridges cycle on and off, so getting an observed amperage is critical. Factoring in the duty cycle of on and off over a 4hour period suggests the RLA is about 4.5amps. Converting to wattage, suggests this fridge uses 430 watts.

Bottomline, left to his devices he might of gotten a 900va UPS with a trunk of batteries, but by understanding is real load meant he got what he needed for about half the price.

Rumble in the Rack II - APC 302b versus Liebert lp312

2011-02-18T00:41:00.001-05:00

Its been a busy sales week for APC SUA3000RM2U units. Despite having disparaging remarks about it on my webpage, its still sells out. ... but can it stand up to the Liebert

$469 - APC SUA3000RM2U (302b)

versus

$515 - Liebert PS3000RT3-120XR (lp312)

Both units have

3000va, 2700watts, 120volt line interactive power architecture
2U frame size with 480vah battery capacity

APC has

Cheaper price

Liebert has

Separate controllable receptacle banks
Extended Run feature which allows for adding more batteries to increase runtime
Can be either rack or tower and comes with free rack rails
Network surge suppression
Separate twistlock receptacle on dongle cord for ease of connection

WINNER: Liebert... not even close

Random APC Part of the month VI

2011-02-16T09:28:00.001-05:00

Here is a RAPM that I use... the NetworkAir PA1000 Air Cooled Self Contained system (AP7003). Believe it or not, Cooling is a major sector of APC. On big systems, like Lieberts, the ACs are more than the UPSes

I bought mine to run on my generator during the Hurricane sagas we had going on a few years ago. During Wilma, this baby managed to cool my bedroom down to about 81.9 degrees at night.

So while its not going to replace your central air, it does work nicely to supplement existing AC systems. At about $300 its a good price point.
Read more about APC's religion of cooling here, especially their Hot and Cold zone fetish

Sizing UPSes for non computer loads

2011-02-15T11:40:00.003-05:00

Sometimes, we get a request to suggest a UPS based on model numbers. Other times we get specs or competing bids. Then occasionally we get someone that knows just enough to be dangerous....

This guy wanted a UPS for his two computer controlled lathes. The nameplate on each lathe motor was 9.5amps at 208volt. So he asked for our APC 5000va UPS since the total VA or volt-amps was 3952. Fortunately he shared his purpose before we shipped it to him. Why?

a ) 19amp x 208volts is indeed 3952 volt amps, but that is based on FLA or full load amps. Lathes have motors and have a startup amperage of 2-5 times the FLA that must be considered in the UPS
b) the computer lathe had other components, not just the main motor. Displays, servos, etc, dont take up too much power, but must be included in load calcs
c) both motors could be starting at the same time, so its possible to have extended startup amperage.
d) VA isnt the same as wattage. On non computer loads is very important to understand the factors that influence wattage.

So, I am pretty sure the 5000va unit would not have met his needs, because each unit probably demands 20amps to start, meaning 40amps potentially.

Our solution, was to a) get the real startup amperage using a MinMax multimeter {peak 14.6a} b) sell him two 3000va ups units so as to limit the chance of dual startup and c) switch to Powerware UPS system since they often can handle 125% of load for a brief period.

Bottomline, even if you have been told about a certain UPS, feel free to ask for our opinion. We want you happy and your equipment working well.

All plugs are created equal and have certain inalienable rights....

2011-02-11T23:15:00.001-05:00

I got this question today... and freaked out!

We upgraded our server wiring from 120volt to 208volt. I want to buy a 208volt UPS. But, since I didnt change all the plugs, I wondered if you can put a L530P on the 208volt UPS?

L5xx is a NEMA designation for 125volt circuitry. As I mentioned before, NEMA plug designations allow people to look at a device and know the voltage for it.

So, when someone asks me to put a L530R (Locking - 3wire 125volt - 30amp - Receptacle) on a their new 208volt system, I freak out. L5 is a 125volt, L6 is for 250volt.

True on the L5 and L6.... the wire, prongs, cord, etc are all rated for 250volt, so its not going melt.
But, if you sell or move that unit, someone will be able to plug that 208volt unit into a 120volt L530R outlet and be disappointed.

I know plugs, devices, and electricians are expensive, but put the proper class of plugs on a unit.

Website for just Symmetras

2011-02-10T13:30:00.001-05:00

As followers of this blog know, WeBobUPS has many websites selling the exact same things.

Our new website is SymmUPS.com as in APC Symmetra UPS

This site will focus on selling the Symmetra systems. It has the same prices as GreenlightUPS.com and others, but it will have the whole line of units, even if I dont have that product in stock.

It also will have a Symmetra Buyback page, so partners can track the value of certain parts

Are you some type of L530P preacher

2011-02-08T23:36:00.004-05:00

A potential customer called me out on a what he saw was an obsession with the L530 Nema designation. (just talked about NEMA plugs a few days ago here)

He noticed that nearly every 2200va UPS has a recommended L530P as the input plug on my website.

As a possible member of the dreaded Plug Police, he reminded me that it was illegal to put a 30amp plug (which is what a L530P is) on a UPS rated for 20amps. And that no manufacturer recommends this. Even though he called before 8am, I tried to politely reminded him of the tag at the bottom of every listing.

Input plugs changed at no charge

So 1) Its not an obsession, more like a compulsive preoccupation to have all server rooms use dedicated 30amp outlets for the UPSes.

If I give you a L530P plug on your UPS that means you will need to have a 30amp receptacle to use it. And a 30amp receptacle is a good thing because: the presence of a 30amp outlet in your server room means your probably have a modern and safe electrical system. Thats because if you have a 30amp receptacle you specifically asked for it. Its not ever put in voluntarily by a low bid contractor. And when he put it in it didn't get spliced from another circuit, since there isnt any 30amp 120volt circuits wandering around. And 30amp outlets typically weren't installed 20 years ago, which means the outlet will be modern and safe and probably up to code.

And 2) Its not illegal... maybe it is in Russia... This isnt Russia?

Ahh, Danny, this isn't Russia. Is this Russia? This isn't Russia, is it?

Amperage designations and related circuit breaker protection is what must be followed. A 30amp outlet must have #10 wire supplying the receptacle. A 30amp cord cap (L530P) must have #10 wire on the cord. True, putting a 30amp cord cap on #12 wire is bad, but if the UPS has a 20amp input circuit breaker on it, it doesn't really matter

Bottomline, I like to put L530s or everything to make it easier. Your IT rooms are complicated enough. If everything is 30amp your wont have to keep changing 520s, L520s, and L530s around as you change and upgrade equipment.

L5, L6, L7, EL-Libre... plug designations

2011-02-07T23:15:00.000-05:00

In order to prevent us electricians from using terms like "the outlet with a t socket," "a monkey face," or "Looser head", the. National Electrical Manufacturers Association created a hierarchy of devices with number designations. Every device has a name that designates its wiring style, amperage, and type of device.

Your typical home outlet is called a 5-15R. 5 - meaning 125v 3wire L+N+G (line, neutral and ground) - 15 meaning - 15amp - Receptacle. Adding an L to the terminology, means that it is a locking or "Twist Lok" device. L5-30P means Locking - 125v, 3 wire L+N+G - 30amp - Plug. There are 20 or so wiring styles and many combinations thereof.

What helps us electricians is that each designation has different contact blade widths, shapes, orientation, and dimensions that are unique to that particular voltage, current capacity, and grounding system.(1)

So a L5-20P cant fit into a L6-30R. Being that one is 125 volt and the other 250 volt, thats a good thing.

The other benefit is that we can look at the equipment's plug and quickly determine the voltage.

Bottomline, you dont need to learn all the NEMA subclassifications to discuss your UPS power needs, just know that I will always refer to devices not by crazy descriptive name, but by their NEMA name. And my most common Nema devices are here

KnowUPS - Getting More from your UPS: Issue 2 - Switched Load Management

2011-02-02T22:39:00.000-05:00

A common feature desired by many IT users from UPSes is the ability to switch On and Off various loads remotely on the UPS. Such as during an outage, having UPS plug X shut off to conserve power.
While Powerware and Tripplite have had this feature, APC just recently added it in their 5th generation systems.

Switched Load Management is described as

By using new APC Smart-UPS with switched outlet groups and PowerChute Business Edition 9.0, users can configure the exact sequence by which equipment shuts down and restarts so that more critical servers stay online longer. Users can also power off less critical equipment under certain conditions to conserve runtime. This increased flexibility means greater availability for mission critical equipment.

Look for this SLM in our 5gen APC units: 200v, 300v and in most of our newer Powerware (p9212v), Tripplite (to313) and Liebert Units (lp312).

Split Phase UPS Units... the UPS to power your subpanel

2011-02-01T19:46:00.005-05:00

Awhile back I wrote about a customer looking for a split phase UPS.
"75mins saved hims 75%"

In that post, I mentioned how in many cases the need for a 4 wire or "split phase" UPS is unnecessary if all you need is 120volt outlets. (Better to buy a step down transformer or re-evaluate your low voltage needs)

The only application where a split phase UPS is useful is when connecting to a panel. Your electrical panel, either 120/240 or 120/208v is a 4 wire system. Two wires carrying current called "hots", a ground, and a neutral. But nearly every UPS is a 3 wire system (2 hots +G), which causes a problem

The solution in most cases, is to add a transformer (xf5iso) that outputs a fixed neutral creating 4 wires (2 hots + N + G).

However, a more expensive option is to buy a UPS that has the separate neutral system built in to its 3U frame. These Smart UPS RTD-P units take in 4 wires and output 4 wires.

We finally have our first one and while it is still expensive, its just a bit more than buying the transformer separately. The 693p3.

Qtr 1 - 2011 - Newsletter Out

2011-01-31T14:59:00.006-05:00

Below is our quarterly newsletter with specials, advice and and tips in PDF

Here are the links

Symmetra Start Page
About 5th generation SmartUPS
SmartUPS 2200va 5gen
SmartUPS 3000va 5gen
Best of the Blog... Same Day Shipping
OnSALE SmartUPS 2200va Tower 200b
OnSALE SmartUPS 3000va 3U Blk 303b
OnSALE Tripplite 1400va XL Desktop tl410
CLEARANCE SmartUPS BigMomma Battery Pack $650.00

Rumble in the Rack I - APC 593g4 versus MGE mx593

2011-01-26T22:21:00.000-05:00

APC SmartUPS Online 5000va (SURTD5000XLT)

versus

MGE Pulsar MX 5000va (87050)

They both have:

5000va Double Conversion Online in a 3U frame
208 and 240volt options
4 output receptacles
XL feature for extended run
Rack or tower formats

The APC has:

more battery capacity to start
greater efficiency at (91%) full load

The MGE has:

More voltage options 220, 230
More wattage 4500watts (versus 3500watts)
LCD Display
Hardwire output
Modular interconnect-ability to 10kva

WINNER - MGE Pulsar MX

The We in Webob is becoming a Cyborg

2011-01-25T23:02:00.001-05:00

Wesley Shreve, my partner in GreenlightUPS is recovering well after a hip replacement surgery today. After years of a full life in competitive sports (and no doubt lifting heavy UPS units) doctors recommended a new hip joint.

While he will be out of commission for a few weeks, with his new hip he should 110% within a few months.

What does refurbished really mean

2011-01-25T18:44:00.000-05:00

Even though I just talked about the need for clear definitions, defining refurbishment in anything other than a grey nebouis concepts, would be counter-productive. The reason is 90% of what we sell is "refurbished ." Hell, I even say our rack rails are "refurbished "

In a technical sense, refurbishment means... used computer equipment that has been restored to like-new working condition

At GreenlightUPS, refurbished means... not factory new, but 100% functional with new batteries.

This vague definition can include: never used open box items to well used items. Cosmetically, it can include a mint looking 1998 model UPS to a beat up 2010 model. Either way, our techs test the item, clean or repair cosmetic and internal components, and install new fresh batteries.

What if I care and prefer a never used open box item to an Ok looking older unit?

Its easy, all the units we sell were released in a fairly tight production window. Models made today werent made 6 years ago. So a Powerware 5135 (p5392v) released in 2010 probably is a customer-return or damaged unit rather than an off lease item... meaning its probably unused. A SmartUPS 3000 3U (303) from 2000, probably has been well used, but fully restored. Thats why the Powerware is $800 and the SmartUPS is $400

Bottomline, call us anytime and we can find the right unit for your needs. Our inventory turns over very fast, so we can always find what you need.

When SMART is not so smart

2011-01-24T17:56:00.000-05:00

It seems like everyone uses the term Smart UPS.

APC owns the trademark, but Tripplite uses SmartOnline, Cyberpower uses Smart App, and Powervar uses ACE Smart in their UPS brands

But does the term Smart really mean.

To some, Smart means the ability to interact with the UPS. But some even APC Smart UPS units, dont have this feature. And even you accept this definition, nearly every UPS interacts through a computer. So unless everyone is exceptionally gifted, this definition doesn't work.

To me Smart should mean a better UPS: interactive, responsive, cleaner. Features like communications, voltage trim, surge suppression and pure sine wave should be in a smarter UPS. APC for the most part follows this. All the APC Smart-UPS unit have these features, except the crappy square wave Smart UPS SC and the non Network management Smart UPS 420. Tripplite and Cyberpower dont seem to follow the sine wave rule as Smart VS units and Smart App both are square wave.

Bottomline, since the definition isnt really clear, avoid using or paying any attention to the term. Its a fluff word, like adding the word Hot toWings.

Another Rush order fulfilled by GreenlightUPS and Delta DASH

2011-01-23T23:23:00.000-05:00

This time it was to Pittsburgh and it was again an APC Smart UPS Online 5kva unit.

Call came in around 3p. Product left to the Airport at 6p. Unit flew first thing in the AM to Atlanta, then onto Pittsburgh by Noon. Total shipping cost was about $180.

While it probably didnt help the Steelers bury the Jets, it may have allowed the IT team to go out and celebrate without worrying about their servers

He is a Swell Wink, even if his Glitches give me Saggy Bumps

2011-01-21T22:46:00.000-05:00

Swells, Winks, Glitches, Sags, Bumps.. are terms to describe electricity... but did you know that the engineers at IEEE actually have engineered official terminology for power problems. There are five problems:

Transients
Interruptions
Sags
Swells
Waveform distortions

Mercifully, a smart battery backup unit can address all five. APC's interesting white paper covers these power problems and some solutions.

Click for Larger View

Looks like APC is quietly pushing those Environmental Probes as a solution to #1 .... I personally would recommend a good surge suppressor instead of adjusting the humidity in the room.

MGE UPS Units... could they be the best ever

2011-01-19T00:32:00.000-05:00

We have just got a few MGE UPS units in. MGE is not a popular brand in the United States, but it well known in Europe. The MGE brand is like a kid from a divorced family, since its owned by APC (Schneider Electric) and Powerware (Eaton). A merger forced the split in brands

MGE through APC recalls the legendary 3phase units, like the MGE Comet. Today's MGE Galaxy is its main offering.

MGE through Powerware/Eaton is the single phase UPS units, like the Pulsar units. Today, Eaton is phasing out the MGE name in the US. The MGE Pulsar's are now called Eaton MX units.

Anyway, we just got in some MGE units. These units are typically the darlings of electrical engineers. They are well built units and seem more substantial than the APC units. Since these are 2010 models, they feature some of the newest UPS advances and features

The Evolution (mg312) is like the APC SUM3000RMXL2U and the Pulsar MX (mx593) is totally unique in that its like a APC Smart Online and Symmetra, since it can transformer from 5k to 20k by linking units together.

Random APC Part of the month V

2011-01-17T00:08:00.002-05:00

APC makes a Residential Hardwired Surge Suppressor.... PMP1X-A

These devices install at your main panel and provide protection for everything in your panel. We recommend these types of units. Our most popular unit is Eaton's CHSP Micro unit.

We honestly have never seen this product and based on its specs, seems a bit expensive compared to other brands. The APC model lists for $269, the Eaton product with more protection is about $100.

Looking for more Random APC Parts

Wall mounted UPS unit.... BackUP HS Series
Rugged UPS... SmartUPS RC Series
Alarm Beacon... AP9324
Surge Suppressor for your Serial Port... PS9-DCE

KnowUPS - Getting More from your UPS: Issue I - EPO

2011-01-16T23:37:00.000-05:00

EPO or Emergency Power Off is a safety mechanism intended to power down electrical equipment in an emergency, in order to protect personnel and facilities.

Most modern UPSes feature an EPO terminal block. However, no one has ever asked me about it and I rarely include the EPO block in the sale. On the APC SUA SmartUPS line (200B) they are located by the comm ports. It is a simple Normally Open contact block

But EPO does has a place and its actually required above 750va according to NEC code.

"A means shall be provided to disconnect power to all electronic equipment. The disconnecting means shall also disconnect the battery from the load."

Since UPS units are always providing electricity, whether the power is on or off, having a way to kill all electricity quickly does have a purpose.

Realistically, as electricians, we rarely see anyone actually connecting small UPS units to a EPO switch. But as we have seen in our lab, DC voltage from batteries can burn and hurt. Read more from APC's whitepaper.

Bottomline, if you need or want the EPO feature, be sure to ask for the contact block to ship with your order.

3phase Options

2011-01-14T23:37:00.000-05:00

When you need a 3 phase UPS, there are two different types of options. The first is modular 3phase. The other is integral 3phase.

Modular systems by APC and Powerware allow you to easily scale, maintain, and replace your UPS as it ages. If you invest in these units, when one component goes bad, it can easily be replaced. Further if you need a larger size, you just add more modules. GreenlightUPS sells the APC Symmetra PX 40 & 80kva.

The other type of 3phase UPS is the Integral type. These units are very common and made by everyone. The most popular are the Liebert Infinity and APC Silicon. While these units can be bought used or refurbished, you take a major risk, since if one component goes bad the replacement is exorbitant. Only buy these if you have a detailed service history. These units need regular Preventive Maintenance which can be thousands of dollars each year.

So if you can afford the Symmetra PX series, we strongly recommend it over the integral units. But, if needed, we can source a well maintained integral UPS from our trusted partners. We often can find these APC Silcon 208/208v UPS units starting at $6500.00

Happy New Year.... new things in store for GreenLightUPS

2011-01-01T01:11:00.002-05:00

Happy New Year,

A few announcements...
1) To our South Florida customers, we are pleased to announce the launch of our Electrical Service division. Under our parent company's name, Wesworth Electric, we can handle all your electrical needs. Our website has been launched and our grand opening will be in mid January. Wesworth is a State Licensed Electrical Contractor.

2) Addressing our shortcomings in 2010. Our customers have told us that 2 things will make their purchase experience better. A) Easier Website and B) Easier packaging.
So we are developing a new webstore backbone and we are also investing in an InstaFOAM packing system. Both of these improvements will make GreenlightUPS an even better experience in 2011

13 years on eBay

2010-12-16T09:57:00.000-05:00

Chefash auctions enters its 13th year on eBay today.

When we started there was no paypal, just Money orders and checks. It seems like only yesterday, I would stand in line at a shady convenience store getting $4.65 money orders for the beanie baby of the day.

Today, as a Powerseller probably from ebay's inception and with a flawless feedback rating, we deliver good value to our customers on that platform.
Shop here

Bypass Switches for UPS Units

2010-12-14T19:27:00.000-05:00

Many high end UPSes offer Bypass switches on their systems. These systems allow power to flow past the UPS, directly to the load. The purpose is to allow the UPS to be serviced without interrupting the load. Unfortunately, this feature is very expensive for some reason.

On smaller UPS systems, APC recommends a SBP3000, which retails for $300.

On larger 5-16kva units, APC recommends a SBP16KP, which retails for $900
Finally, get a large Symmetra 80kva unit and your bypass panel is a 42u cabinet called a PD60F6FK1. This monstrosity retails for $14,000.

Essentially these bypasses are transfer switches. And like many electrical things in the UPS world, they cost almost 10 times more than they should. The SBP3000 can be replaced with a 2pole 30amp switch ($40), a small 60amp transfer switch ($200) replaces the 16KP thing, and a 200amp transfer switch ($900) can be wired to have the same effect as the PD60 thing.

So if you need a bypass, consider the APC units, but email if you want more info on these alternatives.

Random APC Part of the month IV

2010-12-12T07:59:00.001-05:00

There is rack mount format, tower mount, desktop and now... wall mount UPSes.

APC's BackUP HS Series units are wall mounted UPS units designed for structured wiring cabinets. SWC are those fancy panels that terminate your whole house music, networking or other low voltage system equipment.

Interestingly, this might be a good solution for wireless hotspots, alarm panels, and applications where there is no floor space for the UPS.

APC's says its a "a compete management and power protection solution for structured wiring and home networking applications. It provides the flexibility to remotely manage the UPS and control the outlets via Web browser."

For now we DONT carry it, but it does secretly intrigue me. Buy it here

Comments on the 10kva UPS Units

2010-12-11T07:39:00.000-05:00

10,000va Rackmount UPSes are very popular. Both APC and Tripplite make units that fit this powerful UPS into a 6U tower system.

Unfortunately, they dont seem to last. I have noticed that especially the APC SURT10000s (1096g3) seem to fail. When we get in UPS units from liquidators, surplusers and off lease companies, I can almost predict how many will be bad given the models. For us most units come in at under 10% complete failure. (some like the 2200va 3u [203] never seem to fail) But looking at our graveyard of UPSes units, I see many 10kva units. Checking my purchase logs, it has been almost 40% come in DOA.

Why? My guess is like the poor showing of the Dell 3000va 2Us, APC has forced such a large power handling system into too small of a housing. So in the real world, when people don't properly cool the unit and overload it, the heat slowly kills it.

My advice is to buy two 5000va (593g3) units. Its always cheaper and easier to wire. Only buy those 10kva units if that one piece of equipment needs 30amps of power and go with the Tripplite (to1096) since they have an external PDU that keeps the wiring outside the main unit. Never just for a server array.

Lightest and Smallest 3000va UPS Ever

2010-12-10T07:38:00.000-05:00

As more and more of you request our UPS units to be shipped across the country and world, some are asking first about the weight.

As I have mentioned, besides the heavy lead batteries, there are two UPS technologies that weigh dramatically different. Online UPSes weigh less than Line Interactive types. However, Tripplite, now has a 3000va 2U Line Interactive unit that is smaller and lighter than an APC 1500va.

The Smart3000RM2U or tl312 (tl312c) is only 17.5 x 19 and weighs 64lbs. This is smaller than the APC 1500 2U (402b) at 18.0 x 19.

So if you need a light UPS to ship or a small UPS for road shows this is a great buy.