Siemens 5SJ4301-7HG41 is a three-pole miniature circuit breaker (MCB) designed for DIN-rail mounting in 240 V AC electrical systems. This 1 A, C‑curve device provides up to 14 kA of short-circuit breaking capacity for three‑phase circuits and is built for thermal/magnetic protection in compact DIN-rail panels. It belongs to the HSJ frame family and occupies a 70 mm-wide footprint suitable for standard DIN rails, with mounting verified as DIN-rail compatible. The unit is UL 489-listed and intended for three‑phase protection at 240 V, offering reliable protection for low‑voltage distribution applications.
