Nonsparking cast aluminum housing. Aluminum base plate with nonskid conductive rubber base pad. Both modals prewired with potted connector MS-3102R-18-4PW.Two pedal model wired with an electrical interlock and supplied with a divider bar between pedals which helps prevent accidental operation of both pedal at one time. Foot switch painted black. Use mating connector MS-3106A-18-4SW, plus strain relief clamp MS-3057-10 or 10A
