Product Description: The Siemens HQJ23B100H00S07 is a Molded Case Circuit Breaker from the QJ Frame family. It features a 3-pole design with a 240V, 100A rating and a 100kA@240V AIC rating. This breaker uses a bolt-on connection and includes thermal magnetic protection. It also comes with a 24VDC shunt trip for added functionality.