Number of relays 2 x JD1912 80A 6 x JD1912 80A 3 x JD1912 80A 4 x JD1912 80A 4 x JD1914 80A 3 x JD1912 40A 2 x JD1912 40A. 80A Relay Specification. Rated Load (Resistive load) 80A 13.5VDC; 40A 27VDC. Double protection: The relay box is equipped with 6 fuse slots, 2 of which are wired in series with the relays to provide double overcurrent protection for the circuit.