The Siemens SENTRON 5SQ2260-0KA13 is a 2-pole miniature circuit breaker (MCB) from the 5SQ series, rated at 13 A with a B tripping characteristic. It is designed for 400 V AC, 50 Hz systems and carries a 3 kA breaking capacity per EN 60898 — adequate for branch-circuit protection in residential and light commercial distribution boards where the prospective short-circuit current stays under that threshold.
The B-curve trips between 3 and 5 times rated current (39–65 A magnetic release), making it the standard choice for resistive and general-purpose loads — lighting, socket outlets, control transformers — where inrush is modest. The 3 kA breaking capacity (Icn) per EN 60898 certifies it for use where the fault level at the installation point does not exceed 3 kA; above that, selectivity with an upstream device or a higher-rated MCB (e.g., the SENTRON 3VA series) is required. The neutral conductor is switched, so the 2-pole device opens both phase and neutral — required in some regional wiring rules for final circuits and for isolating the neutral during maintenance.
Deployment context
Occupies 2 width units (approx. 36 mm) on a DIN rail, with a 55 mm installation depth — fits standard distribution boards and sub-distribution panels.