Siemens 5SJ4110-6HG40 1-Pole Miniature Circuit Breaker

The Siemens 5SJ4110-6HG40 (5SJ4110-6HG40) is a single-pole miniature circuit breaker designed to provide dependable overcurrent and short-circuit protection within low-voltage electrical distribution systems and industrial control cabinets. Belonging to the Siemens 5SJ4 product line, this circuit protection device safeguards electrical wiring, branch circuits, control transformers, and sensitive automation components against damage caused by thermal overloads and high fault currents. It is widely utilized across factory automation installations, switchgear assemblies, power distribution panels, and machine tool control enclosures. Engineered for mounting on standard 35 mm DIN rails, the 5SJ4110-6HG40 integrates smoothly into modular distribution boards and compact enclosure layouts. It provides terminal connections suitable for secure field wiring and supports straightforward replacement during routine maintenance or equipment overhaul. The unit operates as a vital protective device for industrial machinery, motor control centers, and auxiliary control circuits, ensuring operational continuity and electrical safety. Proper verification of circuit ratings, terminal connections, and mounting specifications ensures safe integration into designated industrial applications.