A-B11665238SM-AI BREAKER-CIRCUITOne New Aftermarket Replacement Circuit Breaker for Snapper, Murray, Simplicity, and Fits Craftsman Lawn Tractors This 12 volt, 20 amp circuit breaker protects the electrical system of your lawn tractor by stopping the flow of electricity if an overload or short circuit occurs. The breaker features a tab mount design and is constructed of metal with a plastic backing. Disconnect the battery before installing this part. Specifications Voltage: 12 Volt