This Siemens BQD350 circuit breaker is a great choice for any construction application. With a maximum amperage of 50A and voltage of 480V, it is suitable for interior use and compatible with 3 phases AC current. The breaker features a bolt-on mounting style and is made of durable aluminum material. It has a Type A tripping characteristic and a current rating of 41-50A. The breaker also has a Smart Home Protocol of HomePluge and is designed with a gray color. This circuit breaker is a main breaker model and has 3 poles and 2 positions. It is a great addition to any electrical equipment and supplies collection.