Can be used with any electric fuel pump, as long as the current load is not above 30 amps Will work with 12, 16 and 24 volt electrical systems and comes equipped with 12 awg wires that provide extra current-carrying capacity with minimal voltage loss 30 amp relay is included with a relay socket wired with long leads specifically designed to reduce the number of splices required Quality insulated crimp connectors are provided to make the necessary splices, where required Detailed instructions included