Perko 8502DP Medium Duty Battery Selector Switch with Key Lock


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Diameter: 5.25″Polycarbonate body with brass terminalsFor use with 6 to 50 volt marine electrical systems


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Perko’s 8501 Series battery selector switches are among the most popular battery switches ever produced. Their use of the traditional Perko bolt circle makes for easy installation, whether new or as a replacement. These switches can be mounted in numerous locations. And as ignition protected switches, they can be installed in the engine rooms of gasoline powered boats. In addition to doing everything a battery disconnect switch does, battery selector switches permit battery selection (of two or more batteries) for specific purposes including starting engines, running accessories or even recharging. They allow for the use of one or more batteries in systems with one or more engines and facilitate putting batteries in parallel for emergency starting when one or both batteries are substantially discharged. Perko battery switches are designed for surface mounting. Standard duty switches have a bright red polycarbonate housing for safety with a large easy-to-turn black knob. The housing of the heavy duty switches are red fiber-reinforced polycarbonate. Selector switches are designed with a make before break feature. This allows switching between the 1, the ALL and the 2 positions while the engine is running. Models with an Alternator Field Disconnect feature offer protection for Non-Unitized Alternators should the switch accidentally be turned to the OFF position with the engine running.

Diameter: 5.25″

Polycarbonate body with brass terminals

For use with 6 to 50 volt marine electrical systems

Capacity – 250 AMPS Continuous, 360 AMPS 5 Mins. Intermittent

Terminal Stud Size: 5/16″

SKU: 3003.3104 Category: