These heavy duty switches are rated at 600 continuous amps - 70% higher than standard switches - and are suitable for large diesel engines.
Ignition protected - safe for installation aboard gasoline powered boats
Corrosion-resistant, one-piece, tin -plated, 1/2" copper studs cannot loosen, and accept multiple cables up to 4/0

AFD (Alternator Field Disconnect) switch on 3001 protects alternator diodes if the selector switch is inadvertently turned to the Off position while the engine is running
Meets all American Boat and Yacht Council (ABYC) requirements for battery switches
Rated at IP66 - withstands heavy seas, jets of water
Case design allows surface or flush mounting
Dimensions: 3.85"W x 3.85"H x 3.10"D
Fits Perko and Guest low amperage battery switch hole patterns

Note: Maximum ratings in Specification Table are when using 4/0 cable.