The 5SY4550-8 Circuit Breaker from Siemens is designed to help protect electrical circuit overloads, short circuits and ground faults. It has a rated current of 50A, rated operational voltage of 230/400VAC, rated short circuit capacity of 6kA, 1+N poles, DIN rail mounting, and characteristic type D in accordance with IEC/EN 60947-2. It features snap-action thermal and magnetic tripping with LED trip indication, manual resetting, and power interruption capability at rated operational current. The design is lightweight and the device comes with locking facility and position indication.