Blue Sea Systems HD-Series Heavy Duty On-Off Battery Switch With AFD alt-238090 and 1/4-20 machine screws of

and 1/4-20 machine screws of various lengths

Self-Check feature

Performs like a true "docking light" instead of a narrow-beam headlight

They have a unique pivoting design which allows them to attach to curved rails or across the corner of a stern rail

Blue Sea Systems HD-Series Heavy Duty On-Off Battery Switch With AFD alt-238090 and 1/4-20 machine screws ofUp to 600A continuous rating for large diesel engines. One piece tin plated copper stud design never loosens over time. Terminal studs accept 1 2" or M12 ring terminals. Ignition protected and UL Listed. Selector features make before break contact design. AFD ( Alternator Field Disconnect models allow switching while running the engine without damaging the alternator. Cranking Rating 30 sec.: 1750A DC Cranking Rating 1 min.: 1325A Intermittent Rating