12VDC 500A AMP Heavy Current 4 Pin SPST Car Auto Start Relay Contactor Double Batteries Isolator Off On Control for Multi-battery
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Red copper binding post: ensuring heavy current can be transited safely.High current automotive relay and battery isolator.12V 500A heavy current relay: great for construction and machinery system.High quality: ensuring the maximum electric current can be transferred.Easy and effortless to use: simple installation.