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This Siemens SENTRON 5SJ4 series miniature circuit breaker, part number 5SJ4103-8HG40, is a single-pole device designed for reliable circuit protection. It features a rated operational current of 3A at 40°C and a D tripping characteristic, suitable for applications requiring higher inrush current handling.
The breaker has a rated insulation voltage of 440V AC and a supply voltage of 400V AC. Its switching capacity is 10kA according to EN 60898 and 15kA according to IEC 60947-2, with a short circuit breaking capacity of 14kA at AC according to UL 1077.
Designed for industrial and mechanical engineering applications, this circuit breaker mounts on a standard DIN rail and has a compact width of 18mm, occupying one modular width unit. It features combined terminals for both top and bottom connections and offers touch protection. The device is halogen-free, sealable, and silicon-free, contributing to its suitability in various environments. The mechanical service life is typically 10,000 switching cycles.
D-curve.
3A.
400V AC.
10kA per EN 60898 and 15kA per IEC 60947-2.
90mm height, 18mm width, 70mm depth.
DIN rail.
1 pole.