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The Siemens SENTRON 5SJ4 series miniature circuit breaker (MCB) is designed for reliable circuit protection in industrial and mechanical engineering applications. This 2-pole breaker offers a tripping characteristic class D and an operational current rating of 0.3A at 30°C, with a maximum switching capacity of 10kA according to EN 60898.
With an insulation voltage of 440V AC and a rated supply voltage of 400V AC, it is suitable for various AC/DC applications. The breaker features a DIN rail mounting type for easy installation and has a protection class of IP20 with connected conductors. It is also halogen-free and sealable.
Key electrical specifications include a maximum operating voltage of 277V AC according to UL 489 and CSA C22.2 No. 5-02, and a maximum DC operating voltage of 60V. The breaker supports conductor cross-sections from 0.75 mm² to 25 mm² with a maximum tightening torque of 3.5 N·m.
Mechanical dimensions include a height of 121 mm, width of 36 mm, and depth of 70 mm, with an installation depth of 70 mm. The typical mechanical service life is rated for 10,000 switching cycles. This component is designed for suitability in environment B regarding EMC.
| 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 0.3 A at 30°C.
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 400 V AC, and the insulation voltage (Ui) at AC is 440 V.
It uses DIN Rail mounting.
Yes, this product feature is halogen-free.