Intermittent switching of high amperage loads with a low amperage on-off switch. Rated at 750A make/ 100A break, this solenoid is for intermittent use only: 10 seconds ON, 20 minutes OFF (ideal for engine cranking). Signal voltage of 12V DC and contact voltage of 6-12V DC. #10/32 thread signal terminals. Copper 5/16"-24 thread contact terminals. Bracket mounting holes 5/16" x 19/32", 2 13/64" on centers. Replaces Cole Hersee part number M-200.