Siemens 5SY6116-7 Circuit Breaker

Siemens 5SY6116-7 is a 1-pole miniature circuit breaker designed for 230/400 V AC circuits, with a nominal current rating of 16 A and a C-type tripping characteristic that starts to respond to moderate overloads. It provides a short‑circuit breaking capacity of 6 kA and is listed as part of the Siemens 5SY6 SENTRON family of miniature circuit breakers, intended for low‑voltage distribution applications. The device has a compact form with a mounting dimension of D = 70 mm, making it suitable for space‑conscious panel installations. As a single‑pole protection device, it protects individual feeders in residential or light commercial distribution boards, such as lighting or receptacle circuits, while offering clear identification of its rating and trip curve for straightforward integration into existing panels. Typical applications include protecting branch circuits in homes or small offices where compact, reliable overcurrent protection is required.