Siemens BQ2B050H, Siemens Low Voltage Molded Case Circuit Breakers General Purpose Mccbs - Type Bq, 2-Pole, 120/240Vac Are Circuit Protection Molded Case Circuit Breakers. 2-Pole Common-Trip Circuit Breaker Type Bqh. Rated 120/240V (050A) (Air 22 Ka). Special Features Load Side Lugs Are Included.