The BCM48A can take 10 gauge wire on the battery terminal.
I would assume the BCM48 is the same, but I don't have any of those.
Keep in mind the 360Watt unit at 48V means there can't be more than a
7.5amp load. On the 600Watt (BCM-48A) you can't have more than 12.5amp,
and in fact there's a 12.5amp fuse on the battery circuit. So you don't
need wire for a larger load than that. #10 AWG is more than sufficient.
I use 100ah x 4, so 4800 watt-hour. A site with 3 Trango Lynx and a
Telrad Compact ran for 18 hours without utility power, so the thing does
its job.
-Adam
On 11/26/2018 3:31 PM, SmarterBroadband wrote:
Ken
How many AH of battery do you hang off one of these units?
Battery connections look very small…
Adam
*From:* AF [mailto:[email protected]] *On Behalf Of *Ken Hohhof
*Sent:* Friday, November 23, 2018 1:35 PM
*To:* 'AnimalFarm Microwave Users Group' <[email protected]>
*Subject:* Re: [AFMUG] 48v Power Supply Switches
What are you doing for battery backup?
Another option we use at most of our medium size towers now is the
Traco TSP-BCM48 battery control module with a TSP360-148 power
supply. They do have a 600W version I think it is TSP-BCM48A and
TSP600-148 but I haven’t used them.
I’m going to guess you have AC UPS’s with a big-ass battery string?
*From:* AF <[email protected] <mailto:[email protected]>>
*On Behalf Of *Mathew Howard
*Sent:* Friday, November 23, 2018 1:57 PM
*To:* AFMUG <[email protected] <mailto:[email protected]>>
*Subject:* Re: [AFMUG] 48v Power Supply Switches
Yeah, 1000 watts does seem like overkill for... the biggest power
supply I've used on any of our towers is 480 watt, and I figured that
should be more than double what we actually are using. I mostly use
Meanwell 240 watt DIN rail mount power supplies these days.
On Fri, Nov 23, 2018 at 12:08 PM Ken Hohhof <[email protected]
<mailto:[email protected]>> wrote:
I assume you want an AC/DC power supply not a switch? Mean Well
is a good brand, personally I prefer the HRP series especially if
you putting it at a tower site because it is a high reliability
model with a wider temperature range, the price difference won’t
break the bank. I tend to keep HRP-150 and HRP-300 supplies on
the shelf.
Also that’s a pretty big power supply. Do you really need that
much power? It makes sense to have some extra capacity to handle
inrush current, but probably not more than double. Power supplies
tend to be inefficient when run way below max rating. If you
really need 1000 watts, maybe a rectifier shelf with N+1 redundant
power modules would be a better choice. Or for the higher power
consumption radios like licensed backhauls, some WISPs like to use
a 100 or 150W power supply for each radio.
*From:* AF <[email protected]
<mailto:[email protected]>> *On Behalf Of *Chuck McCown
*Sent:* Friday, November 23, 2018 10:01 AM
*To:* AnimalFarm Microwave Users Group <[email protected]
<mailto:[email protected]>>
*Subject:* Re: [AFMUG] 48v Power Supply Switches
I have always had great luck with Meanwell products.
*From:*Alex Davidson
*Sent:*Friday, November 23, 2018 8:11 AM
*To:*[email protected] <mailto:[email protected]>
*Subject:*[AFMUG] 48v Power Supply Switches
Hey guys, we are stepping up to some 48v equipment on a tower and
in looking into power supply switches. This seemed to be something
that would work for us (Mean Well SE-1000-48). Any thoughts or
pros and cons that yall have found with this unit. Any units of
similarity that might work well in place of this one. Thanks
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