The ABB SU203M-K40 is a high-quality miniature circuit breaker with a trip curve K rating, ideal for various electrical applications. With a capacity of 40 amps and 3 poles, this circuit breaker is designed to provide reliable and efficient protection against excessive currents and overloads. It complies with the UL489 standard, ensuring safety and proper functionality. Whether used in residential, commercial, or industrial settings, the ABB SU203M-K40 is a reliable choice to ensure the safe and efficient operation of electrical systems.