Combination Battery and Alternator Kill Switch is designed to completely shut down the battery and charging system in an emergency situation. Designed to work with 12V systems and 120 Amp alternators. Ideal for racing, vehicle storage, marine, or RV applications. The main and auxiliary contacts are both controlled by the red knob. To operate, simply twist the switch knob clockwise to turn the switch on and push to turn it off. Easily mounts onto flat surfaces and panels. Ideal for racing, vehicle storage, marine and RV applications Prevents battery drain, theft, and reduces the risk of electrical fire PushOff for emergency shut-down and color-coded to indicate operating position- ON or OFF, with a durable spring-loaded design Meets IHRA, NHRA and SCCA sanctioning body requirements Battery - 2000 Amp Surge 150 Amp Continuous Alternator - 120 Amp Part No. FR1013 Max Continuous Current 150 Amps (battery) / 120 Amps (alternator) Max Surge Current 1,200 Amps (5 seconds) Environmental Protection Rating IP65 Water Resistant Yes Operating Temperature Range -30°C to +60°C / -22°F to +140°F Contact Terminals Silver-Plated Copper Contact Hardware Brass Additional Notes Approved for IHRA, NHRA, SCCA competition use Available Stud Length 0.813" (approx. 13/16 in.) Extension Handle/Lever No LED On/Off Indicator No Lock-Out Capability No Max Tightening Torque 11-13 ft. lbs. Mounting Bracket Included No Stud Diameter M10 Terminal Covers Included No Voltage 12V/24V