The QBHW3040H Westinghouse Type 3P 40A 240V 22k Circuit Breaker is a branch breaker with a bolt-on mounting style and two positions. It has a maximum amperage of 40 A and a current rating of 31-40 A. The breaker is black and has three phases, one space, and three poles. Its tripping characteristics are Type A and it operates on AC voltage. The model is suitable for use in commercial and industrial settings, as well as for home appliances and outlets.