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This Siemens 5SJ42457HG41 is a 2-pole miniature circuit breaker from the 5SJ4 series. It is rated for a 45A operational current and features a C-trip characteristic. The breaker is suitable for AC applications with an operating voltage of up to 240V and a switching capacity of 10kA according to EN 60898.
Designed for industrial and mechanical engineering applications, this circuit breaker mounts on a standard DIN rail. It has a mechanical service life of typically 10,000 switching cycles. The unit is halogen-free and offers touch protection.
Key electrical specifications include a rated insulation voltage of 440V AC and a supply voltage frequency of 50 Hz. The breaker has a width of 36mm, corresponding to 2 modular width units, and an installation depth of 70mm. It is designed for use in environment B regarding EMC.
Additional features include combined terminals on both top and bottom, and it is sealable. The protection class is IP20 with connected conductors and IP40 in the handle range.
| 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 at 30°C is 45A.
The maximum operating voltage at AC is 240V, and at DC it is 60V.
The switching capacity is 10 kA according to EN 60898 and 15 kA according to IEC 60947-2.
The tripping characteristic class is C.
It is mounted on a DIN rail.
Yes, it is RoHS3 Compliant.
The Moisture Sensitivity Level is 1 Unlimited.