Powertech 2-Position 275A Battery Isolator Switch with AFD

The switches themselves are very durable and rated for massive output. They feature removable windows on all four sides to cater for whatever cabling arrangement you have. Alternator Field Disconnect (AFD) protects your alternator when switching batteries in and out of the circuit. By disconnecting the alternator moments before the battery (moments after when re-engaging), there’s always a load on the alternator to protect the regulation circuitry. 

Features:

- High rated current

- Protects your alternator

- Versatile cable entry

Specifications:

Max Rated Voltage: 48VDC

Continuous Current: 275A

Surge Current (5min): 455A

Cranking Current (10sec): 1250A