The older Mr. Gasket and Moroso battery cutoff switches weren't rated very high on much current they can safely handle, I wore one out and learned that they are rated less than 100 amps
There are better ones available, I bought one rated at 250 Amps and it worked great so can you find one to buy when you do a search
Sorry for no links or company names: blush:
The Moroso 74100 is no good. 20A continuous, 125A surge. The 74101 is the one to use, 175A continuous, 1000A surge,
Make sure the switch has silver contacts, which I believe the 74101 does. The Littelfuse/Cole Hersee 2484-16 is also a silver contact switch and is 175A rated continuous and intermittence rated 800A at 6VDC-36VDC, 15 On, 5 Minutes Off. Probably the one Moroso sells as the 74101.
