Single Battery Disconnect Switch - Cup MountThe Perko Single Battery Disconnect Switch permits the battery to be shut off from the electrical system when the vessel is not in use. They can also serve as an emergency main disconnect switch in the event of an electrical problem.The Single Battery Disconnect Switch is Ignition Protected.Materials & FinishRed polycarbonate polymer bodyBlack polymer actuator keyNickel plated terminalsFeaturesSmall compact sizeUnique oval shape mounts in a round holeRemovable actuator key adds additional securityTechnical Information Rating: 140 Amps Continuous, 200 Amps 5 Min. Intermittent, 250 Amps 30 Second StartCup Mount Installation Hole Size: 3"For use with alternators and generators 6-50 V.D.C. Marine Electrical SystemsIgnition ProtectedFace Dimensions: 3" x 2-1/2