I was told $1500 for the two slot. Maybe I was supposed to haggle
instead of moving on to something else.
I think I was over $1,200 for a two slot 48v system.
The guy that does the Interstate batteries quoted me on it.
-----
Mike Hammett
Intelligent Computing Solutions
http://www.ics-il.com
<https://www.facebook.com/ICSIL><https://plus.google.com/+IntelligentComputingSolutionsDeKalb><https://www.linkedin.com/company/intelligent-computing-solutions><https://twitter.com/ICSIL>
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*From: *"Ken Hohhof" <af...@kwisp.com>
*To: *af@afmug.com
*Sent: *Tuesday, January 6, 2015 2:00:47 PM
*Subject: *Re: [AFMUG] 24V UPS
Who priced it for you?
A couple years back I did a spreadsheet. Complete –48VDC systems
including web/SNMP controller, rectifier modules, LVD, remote battery
temperature probe, and circuit breakers but not including batteries
came out to:
2 slot 250W: $540
2 slot 500W: $714
4 slot 750W: $913
4 slot 1000W: $1087
(rectifier modules are 250W each, loadsharing)
If you don’t need all the features it might look expensive, but if you
do, I’m not sure the price is out of line.
This is a very miniaturized system for outside temperature DIN rail
enclosures, their larger rackmount systems in addition to higher
capacity may also be more cost effective. Note also this is a passive
cooling system, does not rely on fans.
*From:* Adam Moffett <mailto:dmmoff...@gmail.com>
*Sent:* Tuesday, January 06, 2015 1:38 PM
*To:* af@afmug.com <mailto:af@afmug.com>
*Subject:* Re: [AFMUG] 24V UPS
Micropack made me cry when I saw what it cost.
Have you looked at Eltek and Emerson? Although Eltek seems to be
oriented around –24 or –48, and not so good for +24. Not familiar
with Emerson, Mark Radabaugh has posted they use them.
I have an Eltek Micropack –48V system and the web and SNMP
capability is excellent. I did have one rectifier module fail,
but it was pretty painless given they are N+1 redundant.
*From:* Gino Villarini <mailto:g...@aeronetpr.com>
*Sent:* Tuesday, January 06, 2015 1:15 PM
*To:* mailto:af@afmug.com
*Subject:* Re: [AFMUG] 24V UPS
The problem with xl units it's the charger ... It has low amperage
(5-8 amps dep model) and don't maintain well big banks
The idea is to have the xl with internal batt and have a big bank
connected to the external batt connector
This bank will be isolated from the apc during AC operation. The
bank will have a good charger and will run 24 dc loads(still under
consideration)
AC fails, the apc ups will see the big bank for extended runtimes
Gino A. Villarini
@gvillarini
On Jan 6, 2015, at 2:51 PM, Josh Baird <joshba...@gmail.com
<mailto:joshba...@gmail.com>> wrote:
Hmm, give us details when you get them regarding the XL!
Josh
On Tue, Jan 6, 2015 at 1:45 PM, Gino Villarini
<g...@aeronetpr.com <mailto:g...@aeronetpr.com>> wrote:
Chris
Thanks for this compressive evaluation. We bought 2
Alpha/Cordex unit for testing. We are in a similar spot,
looking for a web managed power system in 24 and 48 vdc.
You saved us the expense of buying an ICT unit.
That being said, we are looking into using a slightly
modified apc xl unit to run 24 dc direct from the UPS DC rail
Gino A. Villarini
@gvillarini
> On Jan 6, 2015, at 12:24 PM, Christopher Tyler
<ch...@totalhighspeed.net
<mailto:ch...@totalhighspeed.net>> wrote:
>
> I'm at my end. I've been looking at this for a while now
and it's obvious that no one makes an industrial APC UPS
that works.
>
> We've tried the Alpha Cordex (DIN rail) and the ICT (19"
rack) and neither one can do what a APC management card
can. We just need it to provide 24vDC to a load and when
the AC power goes out, send an alert and let us monitor
the system status via SNMP.
>
> Alpha:
> PROS: DIN rail mounted
> CONS: Web interface is IE only, SNMP requests are
completely broken, have not tested SNMP traps, cost is
about $700.
>
> ICT:
> PROS: It works well as a dumb power supply/charger with
UPS functionality, web interface works in all browsers.
> CONS: SNMP is limited to about 6 values, all remote
communication is lost when AC is removed, no battery
monitoring at all other than the voltage for use with LV
cutoff which is one of the values that is not available
via SNMP. Also costs about $700
>
> I have to give it to Alpha at this point, at least their
unit remains "intelligent" when AC power is removed. If
they would fix their web interface and SNMP it would be
perfect.
>
> So... Does anyone have a solution that works that isn't
completely cobbled together? I need to know when we
lose/regain AC power, that the battery is draining, what
the battery voltage is so that I know when it's about to
cut off, it needs a LV cut off to protect the batteries,
and all this information needs to be available via SNMP
and web. Am I asking for too much or does something of
this nature exist outside of TrippLite and APC?
>
> --
> Christopher Tyler
> MTCRE/MTCNA/MTCTCE/MTCWE
> Total Highspeed Internet Services
> 417.851.1107 <tel:417.851.1107>
>
