The Eaton HN-C63/3 is a three-pole, DIN-rail mounted, circuit breaker with current rating of 63A and voltage rating of 230/400VAC. It is constructed using high-performance materials and features such as high breaking capacity, a press-to-test button, spring-type actuator, quick make and break capacity, reliable mechanical and electrical performance, and the ability to withstand extreme temperature variation. It has a Characteristic Curve C and is designed to protect and disconnect electric circuits, automatically in the event of overload or short-circuit current conditions.