Hi
I got a new GPC45 max charger rated at 45 amps.
It calls for a breaker near the battery.
Ive found 40 and 50 amp breakers.
Anyone got a suggestion?
Lets keep the costs low!
Thanks
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Hi
I got a new GPC45 max charger rated at 45 amps.
It calls for a breaker near the battery.
Ive found 40 and 50 amp breakers.
Anyone got a suggestion?
Lets keep the costs low!
Thanks
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Found this Attachment 339921
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Don’t work good in wet inviorment.Quote:
Originally Posted by brettw
I would try the 40 if already have one .
Lots of 50 amp breakers available on amazon.
What size breaker does it call for? Surely can't be a 45A breaker if its a 45A charger, it would pop every time. My guess would be 50A.
Is this going on a boat? It didn’t look like it was made for a marine environment. But maybe I’m missing something. With that said, I’d use the following circuit breaker if I were in your shoes. This breaker is only to protect the battery in case of a short on the cable from the charger to the battery. The charger should have built-in fuses to protect it, but the battery would be unprotected unless you add the other circuit breaker. This looks like a single battery setup. If I’m missing something and it’s for multiple batteries, you’ll want a circuit breaker on each battery. Just my two cents...Quote:
Originally Posted by brettw
attwood 7623-7 Compact 50-Amp Marine Boat 12V/24V Circuit Breaker https://www.amazon.com/dp/B00BV89QXW..._XpsVCbF9Z38JJ
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HiQuote:
Originally Posted by Barnettcrew
Yes on a boat but should be well protected.
Its a 2 battery setup in series equaling 12 volts.
I would think one breaker on the positive wire would be enough?
Thanks for your reply.
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Thanks Kevin,Quote:
Originally Posted by Kevin22
It actually doesn't say what size.
It does call for #2 or 4 wire, which seems like overkill.
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I'm confused, what does the battery charger need a breaker on the boat for?
6awg should be plenty if you are running less than 10'.Quote:
Originally Posted by brettw
If there is a short, the breaker pops and keeps the charger and battery from exploding and lighting your boat up like a 4th of July bonfire. Should be a 50A breaker on every positive lead right before your batteries, unless you have something that draws or adds more than 50A (huge battery charger or trolling motor), then use the correct size breaker.Quote:
Originally Posted by artcarney_agr
Note* a breaker does not remove the need for each item to be properly fused as well. The breaker is just to keep from having a boat fire because of a direct short in your wiring due to rubbing, mice, heat melting wires, etc.
I still don't understand this. If the charger has a problem, shouldn't the breaker for the wall outlet pop?Quote:
Originally Posted by Kevin22
Its std to have a breaker in wire in pos+ wire going to Trolling motor..To protect wiring in that circuit that feeds TM...50amp + - is pretty common...
A breaker in wire of charger input or output is (unheard of by me).. Your home /barn/shed wiring already has a breaker (in 110vac ) Probably a 15a-20a in that outlet that you plug your charger into thats to protect your home/barn/shed wiring ..
Hope this clears up something...
Thanks again,
It will get a 50, ordered already
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This is not a charger that would be packaged with a boat. Its external, smart charger.Quote:
Originally Posted by artcarney_agr
I will get the black wire wrapped. Dont worry. Attachment 340164
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Yes, but this charger calls for one on the + wire near battery so i will install itQuote:
Originally Posted by cva34
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9$ is cheap insurance on a 10k boat and 40k barn
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Go to Walmart, get a 50 amp self resetting breaker in boating dept for around 8.00 put on a short lead at battery and be done with it. Charger be happy, you be happy.
What an odd duck. I see it has fuses on the panel.Quote:
Originally Posted by brettw
The fuses protect the charger from damage in case of a short in the output wires. The breaker will protect the battery from damage in case of a short on the input wire. Remember, the battery and the charger are both sources of power. Therefore a direct short on wires leading to either will send power directly to the boat chassis or other wires. That is why each power device is required to have protection (fuse or circuit breaker).Quote:
Originally Posted by artcarney_agr
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It depends on the problem. If the charger had a fault that increases the current draw above the 15 or 20 amp house/shop circuit breaker while plugged in and charging, then yes it will trip that breaker.Quote:
Originally Posted by artcarney_agr
If the short happens on the output side of the charger, it’s possible that the house circuit breaker wouldn’t react in time to prevent damage to the charger. That’s why they add the fuses on the output.
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I've had that same one on two of my boats including current one. I think mine was 40amp. Never had a problem with them. I have the 12 volt Ipilot TerrovaQuote:
Originally Posted by brettw