Siemens 5SJ4110-7HG40 Miniature Circuit Breaker

Siemens 5SJ4110-7HG40 is a SENTRON miniature circuit breaker designed for a single-pole, 240 V AC distribution circuit. It carries a 10 A nominal current and uses a C-type trip curve for general‑purpose protection, making it suitable for lighting and other small loads in a panel. With a short‑circuit breaking capacity of 14 kA at 240 V and UL 489 compliance, this 1‑pole device provides reliable interruption of faults while maintaining coordination with other protection devices. The compact unit measures about 70 mm in depth and is designed for DIN rail mounting in standard enclosures, aligning with Siemens’ 5SJ4 family specifications. Part number 5SJ4110-7HG40 is intended for use in commercial and residential distribution boards where a compact, easy-to-replace 10 A MCB is required, delivering robust overcurrent protection for general circuits within its 240 V rating.