Skipper's Locker

Blue Sea Systems 7713 12V Remote Battery Switch, Manual

Brand:
Blue Sea Systems
Part no:
7713

Where to buy

Specifications

Continuous rating
500 A
Ignition protection
SAE J1171

This is a magnetic-latching remote battery switch with a manual control knob on the solenoid, so it can be worked from a remote circuit or by hand. Once set, it stays open or closed until the operator changes it. Silver alloy contacts and tin-plated copper studs carry the current, and with 4/0 cables it handles 500 amps continuous. It has IP66 water resistance and SAE J1171 ignition protection.

Our take

The manual knob on the solenoid is the useful part: the switch can be worked from a remote circuit or by hand, with no electric power needed. The 500 amp continuous rating applies with 4/0 cables, so the cable size has to match.

From our buying guide

Perko says its selector switches can be switched between 1, ALL and 2 with the engine running, and that they let you put batteries in parallel for emergency starting. Battle Born advises against that connection with its LiFePO4 batteries.

Check before you buy:

  • Its continuous and 5-minute ratings suit your system. Perko rates its medium-duty 8501 at 250 A continuous.
  • It has an alternator field disconnect if you need one. Perko says its AFD models protect non-unitized alternators if the switch is turned OFF with the engine running.
  • If it's going in a gasoline engine space, the maker lists it as ignition protected.

Sources