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This Siemens 5SJ4108-7HG40 is a miniature circuit breaker designed for electrical protection in industrial and mechanical engineering applications. It features a single pole configuration and a tripping characteristic class C.
The breaker has a rated supply voltage of 400V AC and an insulation voltage (Ui) of 440V AC. Its operational current is rated at 8A at 30°C and 40°C, with a maximum short circuit breaking capacity of 14kA according to UL 1077.
Designed for DIN rail mounting, this circuit breaker has a compact width of 18mm and a depth of 70mm. It supports conductor cross-sections from 0.75mm² to 25mm² with core end processing and has a mechanical service life of 10,000 switching cycles.
Additional features include touch protection, combined terminals, and it is halogen-free, sealable, and silicon-free. It is suitable for environment B regarding EMC.
The tripping characteristic is C-curve.
The rated operational current is 8A at 40°C.
The breaking capacity is 10kA according to EN 60898.
The breaking capacity is 15kA according to IEC 60947-2.
The maximum operating voltage is 120V AC according to UL 489.
The protection class is IP20, with IP40 in the handle range.
Yes, the product is halogen-free.