Perko 8503DP Medium Duty Battery Selector Switch with Alternator Field Disconnect
Perko's 8500 Series of battery selector switches are among the most popular battery switches ever produced.
The use of the traditional Perko bolt circle makes for easy installation, whether new or as a replacement, and it can be mounted in numerous locations.
And as an ignition protected switch, it can be installed in the engine room of gasoline-powered boats.
In addition to doing everything a battery disconnect switch does, this battery selector switch permits battery selection (of two or more batteries) for specific purposes, including starting engines, running accessories or even recharging.
It allows for the use of one or more batteries in systems with one or more engines. It facilitates putting batteries in parallel for emergency starting when one or both batteries are substantially discharged.
They are designed for surface mounting with a bright red housing for safety with a large, easy-to-turn black knob.
Selector switches are designed with a "make before break" feature. It allows switching between the "1", the "ALL" and the "2" positions while the engine is running.
The Alternator Field Disconnect feature offers protection for Non-Unitized Alternators should the switch accidentally be turned to the "OFF" position with the engine running.
The 90° rotation feature allows users to feel the switches' position in no light situations, and the classic shape of the knob makes it easy to turn.
High conductivity studs are long enough to handle more than one cable and strong enough for the torque needed for secure connections.
- Diameter: 5-1/4"
- Depth: 2-5/8"
- Polycarbonate body with brass terminals
- Ignition Protected
- For use with 6 to 50 Volt marine electrical systems
- 250 Amps Continuous
- 360 Amps 5 Minutes intermittent
- Terminal Stud Size: 3/8"
- When used with Non-Unitized Alternators, this model will interrupt the field current (reducing the possibility of damage) if turned "OFF" with the engine running.
Perko Medium Duty Battery Selector and Disconnect Switches
Perko 8501-8504 Battery Switch Installation Instruction