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The Siemens 5SJ4302-7HG41 is a miniature circuit breaker designed for reliable circuit protection in industrial and mechanical engineering applications. This 3-pole device operates with a C-trip characteristic and is rated for a nominal current of 2A at 30°C, with a maximum operating voltage of 240V AC according to UL 489 and CSA C22.2 No. 5-02.
Featuring a high breaking capacity of 14kA according to UL 1077 and CSA C22.2 No.235, this circuit breaker ensures safety under fault conditions. It is built for a mechanical service life of 10,000 switching cycles and offers a protection class of IP20 with connected conductors. The device is suitable for DIN rail mounting and has a compact design with dimensions of 110mm height, 54mm width, and 70mm depth.
Additional technical data includes an insulation voltage of 440V AC, a supply voltage frequency of 50 Hz, and a power loss of 1.8W per pole. The circuit breaker is halogen-free and sealable, providing enhanced safety and tamper resistance. It supports conductor cross-sections from 0.75 mm² to 25 mm² with a maximum tightening torque of 3.5 N·m.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The operational current is 2 A at 30 °C, 40 °C, 45 °C, 50 °C, 55 °C, and 60 °C.
The supply voltage rating is 400 V.
The maximum operating voltage is 240 V AC.
The switching capacity current is rated at 14 kA.
It has a typical mechanical service life of 10,000 switching cycles.
The protection class is IP20.
Yes, it is halogen-free.