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This Siemens 5SJ4 miniature circuit breaker, part number 5SJ4230-8HG42, is designed for robust protection in industrial and mechanical engineering applications. It features a 2-pole configuration with a D-type tripping characteristic, suitable for inductive loads. The breaker is rated for a 30A operational current and provides a switching capacity of 10kA according to EN 60898 and 15kA according to IEC 60947-2.
With an insulation voltage of 440V AC and a rated supply voltage of 400V AC, it operates reliably within specified parameters. The device offers touch protection and is halogen-free, contributing to safety and environmental considerations. It supports conductor cross-sections from 0.75mm² to 25mm² and mounts on a standard DIN rail.
The breaker's mechanical service life is rated for a typical 10,000 switching cycles. It is designed for an installation environment suitable for EMC considerations (Environment B) and has a pollution degree of 3. The physical dimensions are 121mm in height, 36mm in width, and 70mm in depth, occupying 2 modular width units.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The operational current rating is 30A at 30°C and 40°C, decreasing slightly at higher temperatures.
The switching capacity is 10 kA according to EN 60898 and 15 kA according to IEC 60947-2.
This circuit breaker has 2 poles.
The tripping characteristic is Class D.
The maximum operating voltage is 277V AC according to UL 489 and CSA C22.2 No. 5-02.
Yes, this product feature is halogen-free.