Product Description: The Siemens JXD62M300 is a Molded Case Circuit Breaker from the Sentron Series. It features 2 poles, 600V voltage, and a 300A amperage rating with a 35kA@480V AIC rating. This breaker uses a Bolt-On connection and includes Thermal Magnetic protection. The frame size is JD Frame, and it weighs 18 lbs.