The Siemens Circuit Breaker with Shunt Trip is a reliable and efficient electrical component designed for industrial and commercial applications. With three poles and a maximum amperage of 40A, this circuit breaker provides reliable protection for electrical circuits. The amperage rating of 40 also ensures that the device can handle heavy electrical loads without tripping. Made by the trusted brand Siemens, this circuit breaker is a dependable choice for ensuring the safety and functionality of electrical systems.