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This Siemens 5SJ4208-7HG42 is a 2-pole miniature circuit breaker designed for industrial and mechanical engineering applications. It features an 8A operational current rating at 30°C and a C tripping characteristic. The breaker 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 is suitable for various power distribution needs. The operating voltage is rated up to 277V AC according to UL 489 and CSA C22.2 No. 5-02. The device offers a protection class of IP20 with connected conductors and IP40 in the handle range.
Constructed with halogen-free materials, this circuit breaker is sealable and silicon-free. It supports conductor cross-sections from 0.75 mm² to 25 mm² with core end processing and has a maximum tightening torque of 3.5 N·m. The unit is designed for DIN rail mounting and has dimensions of 121 mm height, 36 mm width, and 70 mm depth.
| 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 8A at 30°C and 40°C, decreasing slightly at higher temperatures.
This circuit breaker has 2 poles.
The switching capacity is 10 kA according to EN 60898 and 15 kA according to IEC 60947-2.
The rated supply voltage is 400V AC, and it is rated for up to 277V AC according to UL 489 and CSA C22.2 No. 5-02.
Yes, this product feature is listed as halogen-free.