Siemens AG 5SX2 301-7 is a three-pole miniature circuit breaker rated for 1 A at 400 V AC, featuring a curve C operating characteristic for short-circuit protection. Designed for DIN-rail mounting in low-voltage distribution panels, it protects three-phase circuits from overcurrent. Part of the Siemens 5SX2 family, this 301-7 variant provides compact, modular protection suitable for small to mid-size three-phase installations. Applications include commercial and light-industrial electrical distributions where a 400 V AC three-phase supply is used and a 1 A protective rating is appropriate.
