Siemens 5SJ4211-7HG41 Miniature Circuit Breaker

The Siemens 5SJ4211-7HG41 is a two-pole SENTRON miniature circuit breaker (MCB) rated for 5 A at 240 V AC, designed to protect single‑phase branch circuits inside electrical distribution panels used in commercial, industrial, and large-residential installations. It employs a thermal-magnetic trip mechanism with a C-type characteristic and a short-circuit interrupting capacity of 14 kA at 240 V, providing both overload protection and fast fault isolation for circuits up to the rated current. As part of the 5SJ4x family, the 5SJ4211-7HG41 is configured for 2-pole operation, which ensures simultaneous disconnection of both conductors in the protected leg, and it is rated for ambient temperatures up to 40°C. Common applications include protecting lighting circuits, receptacle outlets, and other low-to-moderate-current branch circuits within panel boards and distribution assemblies, where reliable, calibrated overcurrent protection is essential.