Perko Compact Medium Duty Main Battery Disconnect Switch w/Key Lock One Size. Compact Battery Selector & Main Disconnect Switches Ignition Protected For use with 12 24 and 32 volt marine electrical systems Higher rating than popular 8500 series switches Same bolt patterns as popular 8500 series Smooth Positive Position Selector Compact Medium Duty Main Battery Disconnect Switch w/ Key Lock Specifications for Perko 9612DP Compact Medium Duty Main Battery Disconnect Switch w/Key Lock: Manufacturer: Perko Color: Black Features of Perko 9612DP Compact Medium Duty Main Battery Disconnect Switch w/Key Lock AFD: No Lockable: Yes Package Contents: Perko 9612DP Compact Medium Duty Main Battery Disconnect Switch w/Key Lock Perko 9612DP: 9612DP Compact Medium Duty Main Battery Disconnect Switch w/Key Lock One Size