MSD’s High Current Relaysare what you need to activate accessories that draw high current. These Relays are veryreliable due to the fully automated manufacturing process and sophisticated coilwinding procedure. The SPST High Current Relay is rated at30 amps with an input voltage of 12 volts DC. The relay is ideal for use with the MSD RPMActivated Switch when 12 voltsare responsible for activatinga high current device such as a nitrous solenoid.The DPST relay is also rated at 30 ampswith a 12 volt input voltage. This Relay is the best choice when 12 volts are required to activate multiple high currentdevices at the same time such as multiple stage nitrous solenoids.