The Siemens BQD3100 is a high-quality circuit breaker designed for industrial and commercial applications. With a maximum amperage of 100A and a voltage rating of 600V, this 3-phase breaker features thermal interruption technology for reliable protection. The black color and box lugs/screws electrical connection make it easy to install and maintain. With 6 gangs and 3 positions, this main breaker from Siemens is ideal for electrical wiring needs ranging from 1 to 10 circuits.