Product Description: The Siemens HQJ23B150H00S01 is a Molded Case Circuit Breaker from the QJ Frame family. It features a 3-pole design with a 240V, 150A rating and a 100kA@240V AIC rating. This breaker includes Thermal Magnetic protection and uses a Bolt-On connection. It also comes with a 120/240V shunt trip.