Perko 8504DP medium-duty battery selector switch with alternator field disconnect (AFD) and key lock. Designed for 12, 24, and 32 volt marine electrical systems. Polycarbonate body with brass terminals; ignition protected. Interrupts alternator field current when used with non-unitized alternators if turned OFF while engine is running. Continuous capacity 250 AMPS, 360 AMPS 5 minutes intermittent. Terminal stud size: 5/16". 2 positions. Lockable. Includes quality boat handles. Durable construction with screw terminal connectors and make-before-break contact type. IP54 rated.
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