Siemens 5SJ4102-7HG40 Miniature Circuit Breaker 1P C2A 240 V / 400 V – 14 kA

The Siemens 5SJ4102-7HG40 is a compact 1-pole miniature circuit breaker (MCB) from the SENTRON 5SJ4 series, designed for reliable protection of electrical installations against overload and short-circuit faults. With a rated current of 2 A and characteristic curve type C, it provides accurate tripping behavior and tolerance for moderate inrush currents.
Rated for operation up to 400 V AC or 60 V DC, the breaker ensures dependable circuit protection in both residential and industrial applications. It offers a high breaking capacity of 14 kA under UL standards and 10 kA under IEC standards, ensuring robust safety performance even in demanding environments.
The 5SJ4102-7HG40 features screw-type terminals for secure wiring, a durable housing, and easy DIN-rail mounting. As part of the Siemens SENTRON range, it delivers long service life, consistent reliability, and full compliance with international quality standards — ideal for control panels, distribution boards, and small-current circuits.