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This Siemens 5SY4401-8 is a 4-pole miniature circuit breaker from the 5SY4 series, designed for reliable circuit protection in industrial and mechanical engineering applications. It operates with a rated voltage of 400V AC and a rated current of 1A at 35°C, featuring a Type D tripping characteristic for high inrush current applications.
The breaker offers a switching capacity of 10kA according to EN 60898 and 35kA according to IEC 60947-2. It supports a wide range of conductor sizes, from 0.75 mm² to 35 mm² solid or stranded wire, with appropriate tightening torque specifications for secure connections. The unit is designed for quick assembly onto a standard DIN rail and has a compact width of 72 mm, occupying 4 modular units.
Key features include a mechanical service life of 10,000 switching cycles, halogen-free construction, and sealable design. The protection class is IP20 with connected conductors. This circuit breaker is suitable for overvoltage category III and pollution degree 3 environments.
| 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 1A at 35°C, and 1A at AC rated value.
The rated supply voltage is 400V AC, and the insulation voltage (Ui) is 440V AC.
This circuit breaker has 4 poles.
The tripping characteristic class is D.
The breaking capacity is 10kA according to EN 60898 and 35kA according to IEC 60947-2.
It uses DIN rail mounting.
Yes, this product is halogen-free.