If I had to choose a round type, this would be a candidate; https://diysolarforum.com/threads/an-actual-600a-48v-disconnect-switch.75091/
Battery disconnect for nominal 48v systems?
- Thread starter jameshowison
- Start date
Brucey
Solar Wizard
Great find of the updated data sheet and manual.I FOUND IT I FOUND IT I FOUND IT!!!
I've been looking for hours for a disconnect switch for my 48V system, Schneider, Mouser, AB, Digikey, McMaster-Carr, youtube and forums.... same issues as everyone here, my 48V system will operate a bit above 48V and really would like to respect mfg ratings if they say 'max 48V' then I don't want it.
In frustration I wanted to see how Victron was selling their 48V gear without an offering, go check their site and yeah they have the same looking switch as bunch of others (https://www.victronenergy.com/dc-distribution-systems/battery-switch-on-off) BUT they say it is "suitable for battery systems up to 48V"!? Now they have a reputation to protect and IANAL but sounds suspiciously enough to win a court case if my 48V system which runs up to 52V goes up in flames (hyperbole I know but you get my point) soooooo maybe?
Since I really don't want to design around legalese I go check their datasheet:
and
"Maximum DC operating voltage 60V"
W00T!
It even says "The battery switch is suitable to switch under load", so I am saving copy of the datasheet and bought 2, thought others might like to know
Though it does say this, prob not ideal to use as a regular disconnect when under load but for emergency use or when you have control of loads should be ok:
i was trying to find an answer to this riddle as well. The one I came across in the forums was another marinco bep product.
Up to 120vDC and 400 amp continuous.
I’m not sure what amperage you will need. I also looked into breakers but found that more confusing with all the single pole versus double and whether they should be used as a disconnects or not.
Great find on the Victron data! I had checked them out not long ago and had thought they were like the rest off the 48v max crowd.
Up to 120vDC and 400 amp continuous.
I’m not sure what amperage you will need. I also looked into breakers but found that more confusing with all the single pole versus double and whether they should be used as a disconnects or not.
Great find on the Victron data! I had checked them out not long ago and had thought they were like the rest off the 48v max crowd.
May want to check the reviews on that one.
More stuff to add to the confusion eh? One guy calling it the holy grail the next saying it blows up in smoke.
That right there is the reason I’m here on the forums trying to seperate trash from treasure in the solar world
I came across it in this thread here and was
I will say the victron states it can switch under load and the bep states clearly not to do that on its model.
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Thank you for the enlightenment. Learning more daily here. Did a strikethru above so as not to mislead anyone.
I personally went with a Noark 250A UL489 listed MCCB breaker. Since I had expanded my system the 250A was not enough and thought I was going to have to get something else.. but realized you can get a mechanical interlock for them so I got a 2nd 250A breaker. Once I install that I will safely be able to run 400A continuous, have reliable over current protection for entire battery bank, and have a reliable disconnect even while under full load.
Azycray
New Member
Well done, I saved to my Amazon list. the one I am using now was only $12, probably fine but.......I FOUND IT I FOUND IT I FOUND IT!!!
"Maximum DC operating voltage 60V"
W00T!
It even says "The battery switch is suitable to switch under load", so I am saving copy of the datasheet and bought 2, thought others might like to know
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