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The Siemens 5SJ4302-8HG42 is a 3-pole miniature circuit breaker designed for reliable circuit protection in industrial and mechanical engineering applications. It features a tripping characteristic class D and a rated operational current of 2A at 40°C, with a switching capacity of 10kA according to EN 60898.
This circuit breaker supports AC/DC operation with a rated supply voltage of 400V AC and a maximum operating voltage of 277V AC according to UL 489. It also handles DC voltages up to 60V single channel and 125V 2-channel. The device has an insulation voltage (Ui) of 440V AC and a degree of pollution of 3.
Constructed for durability, it offers a mechanical service life of 10,000 switching cycles. The unit is designed for DIN rail mounting and has a width of 54mm, corresponding to 3 modular width units. It features touch protection and combined terminals for ease of connection. The circuit breaker is halogen-free and silicon-free, contributing to environmental compliance.
D characteristic.
10 kA per EN 60898 and 15 kA per IEC 60947-2.
60 V for single channel and 125 V for 2-channel.
10,000 switching cycles.
CCC, CE, CSA, EAC, UL, VDE.
DIN rail mounting.
Up to 60°C with current derating.