![]() The 30 amp namebrand breakers work great and can handle the higher amps without heating up and I use them between my solar controller and battery which sees a constant of 27 amps. I also tried using "shortstop" circuit breakers but you have to use namebrand breakers, I bought generic 30amp breakers and they were tripping at 22 amps. These require a ANL fuse holder (about 10 dollars). Also the fuse holders probably max out at 30 amps and they also start melting when use constantly at 30 amps.įor situations where I need high amps constantly I have been using ANL fuses, they are larger and can handle the amps better without melting. Some of the atc fuses have a tendency to melt from the heat, this usually occur as low as 15 amps, I now use bussman atc fuses which can handle the heat better without melting. (13a x 26v = 338 Watts) I have note measured the current directly. Assuming 77% efficiency instead, the inferred current on the 13 volt side would be 26 amps. The estimate of 25 amps at 13 volts is based on assuming 82% efficiency for the entire chain. The power for that comes from a Victron Phoenix 375 VA inverter which is powered from the 13 volt source with about 25 amps on the input (13 volt) side of the inverter). * The project involves a Jackery E1500 Li-ion battery system which is being charging at 260 Watts. So any advice about what is safest, most prudent, best, etc., is most welcome. I know next to nothing about fuses and I have very little experience. Is that necessary? The total length of wire is just about 5 feet. If I just replace the 30 amp with a 40 amp blade fuse in the same in-line fuse holder, I was concerned that maybe the fuse holder would tend to heat up and that might be bad? I wondered if it might be more prudent to go with 40 amp bolt-down type fuse such as Baomain ANL 40 amp in a Baomain holder, or a Little fuse 40 amp Mega or.? I could mount that fuse in a small switch box that I use to precharge the inverter. ![]() ![]() The fuse holder felt warm to touch and so I wondered if I should just replace that fuse with a 40 amp, or if I need to make more fundamental changes such as using a different fuse type and lower gauge (bigger) wire? (Something I got on Amazon that happened to have the connectors I wanted on both ends and seemed like it might work okay? (pictured in the reply below.)) Anyway, after about 40 minutes one of the fuses was blown. I am using 10 AWG wire with 30 amp blade fuses in in-line fuse holders on the 13 volt wires. I am working on a project where an inverter draws about 25 amps* continuously from a 13 volt battery-based source.
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