Siemens 5SJ4108-7HG41 Molded Case Circuit Breaker

The Siemens 5SJ4108-7HG41 Molded Case Circuit Breaker is a 1-pole SENTRON miniature circuit breaker rated for 240 V AC with an 8 A nominal current and a 14 kA short-circuit breaking capacity, designed for general-purpose overcurrent protection in residential, commercial, and light industrial panelboards. This Type C (C-curve) device is intended to trip on overcurrents typical of moderate fault conditions, providing reliable magnetic-thermal protection for single‑phase circuits. The unit features a compact molded housing with a depth of 70 mm (D = 70 mm) and UL 489 dimensional alignment, facilitating DIN-rail installation in standard enclosures. As part of the 5SJ4 family, the 5SJ4108-7HG41 uses a plug-in design with quick-connect terminals for straightforward maintenance and replacement, and it is rated specifically for 240 V AC operation with a 14 kA short‑circuit rating. This 1-pole breaker is well suited for protecting individual branches in small to mid-size distribution boards or control panels where space is at a premium and clear, repeatable tripping behavior is required.