Siemens Low Voltage Residential Circuit Breakers Miniature Thermal Mag Circuit Breakers - Type QP/MP, 2-Pole, 120/240VAC are Circuit Protection Load Center Mains, Feeders, and Miniature Circuit Breakers. Type QP/MP Special Features Non-Automatic Switch Application Electrical Distribution Standard UL 489 Voltage Rating120/240V Amperage Rating 50A Trip Range Thermal Magnetic Interrupt Rating 10 AIC Number Of Poles 2P