Perko 8503DP Battery Selector Switch, No Key Lock

The Perko 8503DP Medium Duty Battery Selector Switch (with Alternator Field Disconnect, without Key Lock) is ignition protected for use with 6 to 32 volt marine electrical systems. It is designed for boaters who want a polycarbonate body with brass terminals rated for 250 amps continuous, 360 amps for 5 minutes intermittent.

When used with non-unitized alternators, this switch interrupts the field current, reducing the possibility of damage if turned OFF with the engine running, with a 5/16 inch terminal stud size and no key lock for straightforward operation. Browse more options in our panels, switches, and circuit breakers category.

Key Features

• alternator field disconnect
• no key lock

Frequently Asked Questions

Does this switch include a key lock? No, this version is without a key lock.

What is this switch's continuous amperage rating? 250 amps, with 360 amps intermittent for 5 minutes.

What does the alternator field disconnect protect against? Alternator damage if turned OFF with the engine running (on non-unitized alternators).