500 Ampere Bi-Stable Magnetic Latching Solenoid allows high-amp switching under load where manual control is not required. 500 Amp continuous rating Bi-Stable Magnetic Latch (ML) - draws no current in the ON or OFF state 3/ 8"-16 tin-plated copper studs for maximum conductivity and corrosion resistance 7/ 8" (22mm) stud length accepts multiple cable terminals Label recesses for circuit identification Silver alloy contacts provide high reliability for switching live loads Retail packaging includes Remote Control Contura Switch Manual control switch provides an added level of safety allowing control with or without power, and offering LOCK OFF capability for servicing. Auto releasing provides 500A switching and features of current ML Remote Battery Switches, but can be controlled with SPST or SPDT switch for applications where a normally open relay is desired. Specifications: Control Circuit Voltage: 9-16V DC Control Circuit Connection: Tinned wires - provided on retail units Manual Control: Yes Coil Function: Bi-Stable Mounting: #10 Amperage Operating Current: 0mA (@ 25C nominal VDC) Amperage Operating Current when changing state: <7A (40 ms) Terminal Stud Torque: 140 in-lb (15.82 Nm) Cable Size to Meet Ratings: 2x (4/0) Live Current Switching: 300A @ 12V DC Master Control Switch Capability: No Mechanical Endurance: 100,000 Cycles Terminal Ring Diameter Clearance: 29.97mm (1.18") Terminal Stud Length: 22.23mm (0.875") Terminal Stud Size: 3/8" - 16 (M10)