Fuse math...

[Darce]

I am sizing the fuses for updating my system. I have a Midnite Classic 200 that calls for an input breaker of 50 amps and 70/80 for the output side. Is it as simple as just getting those ratings in Class T fuses? If I went with breakers are there any that somebody would recommend? I initially got the bussman trolling motor style off amazon but that's probably not the best lol.

Also I need to size the main fuse for the battery out to the inverter.
Inverter is 6000w at 48v. 90% efficiency.
Thats 6000/.9=6666/48 comes out to 138 amps. Oversizing 1.25 gives me 173.6 amps.
I would be all set with 175 amp T Class fuse? Dang those fuses are spendy.

Thanks!

 

[Dzl]

I dont know if this would be applicable to your situation or not but Midnite sells their own line of circuit breakers rated for high-ish voltage DC, I know some are rated at 300VDC, there might be some rated for 600V if you need higher. Altestore has a decent curated selection of breakers including the Midnite ones I mentioned.