The Westinghouse EHB3040 40A Circuit Breaker is a reliable and essential electrical component for businesses and industrial applications. With a maximum amperage of 40A and voltage ranging from 451-500V, this circuit breaker offers efficient and safe operation for circuits requiring high power. The on/off operation method and two positions make it easy to use and versatile for various electrical setups. This black circuit breaker, with three poles, provides a dependable solution for protecting electrical circuits in demanding environments.