Relay Devices Automotive Relays Continuous Duty Solenoids Remote Starter Solenoid High Power Relay Sealed Automotive Relay Relay Socket Relay Socket Kit Relay & Socket Assembly Mag Kill Solenoid High Power Relay #201-020 For high current switching. Example, connect to ignition circuit to control or shut down power circuits, accessories or fuse panels through ignition switch. SPST dual contacts rated for 75 amps. See Ignition Relay Circuit Diagram..