Siemens 5SX23-C16 Circuit Breaker

Siemens 5SX23-C16 is a three‑pole miniature circuit breaker (MCB) from the 5SX23 family, with a 16 A nominal rating and a C‑curve trip characteristic, commonly cross‑listed as 5SX2316-7 to denote three poles and a 16 A rating (C‑curve) for protection of three‑phase circuits. It is designed for DIN rail mounting in standard industrial panels, offering a compact, modular protection solution that can be snapped into a 35 mm DIN rail along with other Siemens protection devices. Industrial listings show this configuration as a 3‑pole, 16 A, C16 MCB rated up to 400 V AC, reinforcing its role in protecting three‑phase circuits in commercial and light industrial power distribution.