Good price on New Eaton 9PX6K UPS

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WeekendWarrior

Active Member
Apr 2, 2015
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Came across what seems like a good deal on Eaton 9PX6K rackmount UPS units.

These are 5400W/6000VA units that receive 208-240V (via L6-30 plugs) and provide the same through L6-30 receptacles.

This unit is big enough to provide a couple minutes of power, to allow graceful shutdown, if you lose power while maxing out a 220V/30A circuit (not a typical homelab need). Expansion batteries allow for greater run time.

eBay seller has multiple available, new in box, and accepted BO at 1200 (shipping included). See Eaton 9PX6K PN 9104-12585-00P New & Unused | eBay.

All other Internet prices are at least 2X this price and Eaton gets a lot of props on this forum and elsewhere so hope this helps someone.
 

Blinky 42

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Aug 6, 2015
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Hmm seller mentions it only weights about 50 lbs, but the label says 124. May not have any batteries.
 

T_Minus

Build. Break. Fix. Repeat
Feb 15, 2015
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Who cares if it has batteries or not if it's not used, sat on the shelf for years they're toasted anyway ;)
May have been worth having them test the batteries and save some $$ on the unit more, and on shipping.
 

azev

Well-Known Member
Jan 18, 2013
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hmm my super old compaq R6000 is dead, So I am interested to see how this will perform as well. The only thing sux about it is that I need to also get new PDU for this.
 

WeekendWarrior

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Apr 2, 2015
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Man, I got a 6k unit for like $250. $100 for the unit (and dead batteries, but I didn't trust the seller to not **** up the battery holders in removing them, they were morons) and then $150 to flat rate freight so it didn't ship ****edUpx.

Doesn't look as pretty as this one though, I'll give you that.

Was one of these beefy boys if anyone is curious (from a different seller, but you know).
Agreed that used 6KVA units are available cheaper (e.g., $200-600+shipping) - without batteries and one or more generations older than this unit. New condition and recent vintage seems worth some premium to me.
 

rune-san

Member
Feb 7, 2014
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I need something similar but for the 120V setup :(
As mentioned above, at this sort of power level, 208/240 is really the only sensible option, as 120V/50Amp service incurs a lot of efficiency losses and requires big cabling. If you need 120V to your devices, but can still do 240V in, Eaton has the 9PXTFMR5 Transformer that cables to this setup. it's a 5,000 VA transformer in the same 3U form Factor as the UPS (and weighs a crap ton). It will give you 120V out from the unit. There's a couple places around me that sell new old stock of those for about $300.
 

e97

Active Member
Jun 3, 2015
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How many KWh is this?

Interested in how this compares to a Tesla model S battery module (24V, 250Ah, 5.2kWh, 444 Panasonic 18650 3200mAh)

Folks have been using them for who system / house UPS like a power wall.
 

WeekendWarrior

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Apr 2, 2015
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How many KWh is this?
My understanding is that these units are intended to provide sufficient stored power to allow a graceful shutdown in the event of a total power failure.

I saw specs (although I can't find them now) published by Eaton suggesting that the 6K unit we're discussing would run approximately 5 minutes when supplying 5KW. Additional run time can be achieved by adding additional batteries.

That may not sound like much but it's enough for my needs. My max power draw will be 4KW but will typically be more like 2.5KW so I would get 8-10 minutes to power down.
 

WeekendWarrior

Active Member
Apr 2, 2015
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Hmm seller mentions it only weights about 50 lbs, but the label says 124. May not have any batteries.
Arrived recently - carried/dragged it up a flight of stairs (very slowly). Definitely not 50 pounds. Shipping manifest said 124 pounds, which seemed about right.

Will report performance after the electrician completes the upgrade to 240V this coming week.
 

Gene

Active Member
Jan 27, 2016
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If you need 120V to your devices, but can still do 240V in, Eaton has the 9PXTFMR5 Transformer that cables to this setup. it's a 5,000 VA transformer in the same 3U form Factor as the UPS (and weighs a crap ton). It will give you 120V out from the unit. There's a couple places around me that sell new old stock of those for about $300.
I went with an apc 9629 1u unit and changed out the plug to get my 120v outputs where needed. Picked it up new off craigslist for free.
Run 240v. It took only a few hours and was easy to diy.
 

rune-san

Member
Feb 7, 2014
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I went with an apc 9629 1u unit and changed out the plug to get my 120v outputs where needed. Picked it up new off craigslist for free.
Run 240v. It took only a few hours and was easy to diy.
Nice bit of ingenuity. Not up to code, but easily the best price/performance. Personally if I really needed it and didn't want to do a transformer, I would have probably done a sub-panel for two 120V lines off each 240V in. But that's only because of it needing to be up to code for insurance purposes.