Blue Sea 500A HD-Series Heavy Duty 4 Position (OFF/1/2/1+2) Battery Selector Switch w/ AFD Popular this unit simplifies the switching

this unit simplifies the switching process by simultaneously connecting two isolated battery banks to their respective loads with a single ON position

space-efficient solution with keyed operation and marine-ready design

sensitive electronics without electrical noise

Ensure your supply cable is fused appropriately at the battery source

The flexible form factor makes it easier to mount on subtly curved surfaces and low-clearance rooftops

Blue Sea 500A HD-Series Heavy Duty 4 Position (OFF/1/2/1+2) Battery Selector Switch w/ AFD Popular this unit simplifies the switchingConfident control of dual battery banks for marine and RV power Managing multiple battery banks on a boat, 4WD or caravan often means balancing two priorities: keeping critical loads powered and protecting your charging system. The Blue Sea HD Series 4 position battery selector switch with AFD is built for high current installations where dependable changeover and battery isolation matter. It gives you clear, manual control to run from Battery 1,