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The Siemens SENTRON 5SJ4201-8HG42 is a 2-pole miniature circuit breaker designed for reliable circuit protection in industrial and mechanical engineering applications. It offers a switching capacity of 10 kA according to EN 60898 and 15 kA according to IEC 60947-2.
This circuit breaker operates with a rated supply voltage of 400V AC and has an insulation voltage of 440V AC. It is suitable for AC/DC voltage types and provides protection up to 277V AC according to UL 489 and CSA C22.2 No. 5-02 standards. The operational current is rated at 1A at 30°C and 40°C, with slight reductions at higher temperatures.
Featuring a DIN rail mounting type and a compact design with a width of 36mm and depth of 70mm, the 5SJ4201-8HG42 is easy to install. It includes combined terminals for flexible connections and offers touch protection. The device is halogen-free and sealable, contributing to safety and security in its operational environment. The mechanical service life is typically 10,000 switching cycles.
The AC rated supply voltage is 400 V; per UL 489 and CSA C22.2, AC maximum is 277 V. DC operating voltages are 60 V (single-channel) and 125 V (2-channel).
It mounts on a standard DIN rail and can be installed in any orientation.
It has a D tripping characteristic, designed for high inrush currents typical of motors and transformers.
The rated switching capacity is 10 kA according to EN 60898 and 15 kA according to IEC 60947-2.
The rated operational current is 1 A at 30°C and 40°C AC, with de-rating at higher temperatures (0.97 A at 45°C, 0.9 A at 50/55°C, 0.88 A at 60°C).
The mechanical service life is 10,000 switching cycles typical.
It has 2 poles.