noelex
Well-known member
Blue Sea list the IC of ANL fuses as slightly higher than MRBF fuses.I don't recall the exact amperage interrupt figures but for small systems the MRBF fuses are significantly better than ANL or MEGA fuses but as you say, Class T is best. I wouldn't go lower than MRBF.
ANL: 6000A @ 32V DC
MRBF: 5000A @ 32V DC
Mega: 2000A @ 32V DC
T Class fuses have a much higher IC rating of 20000A @ 125V DC.