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This Siemens 5SY4311-7 is a 3-pole miniature circuit breaker designed for electrical protection in industrial and mechanical engineering applications. It operates at a rated voltage of 400V AC and has a current rating of 5A at 35°C, with a derated operational current of 4.24A at 60°C.
The circuit breaker offers a switching capacity of 10kA according to EN 60898 and a higher 35kA according to IEC 60947-2. It features a Class C tripping characteristic, suitable for protecting circuits with moderate inrush currents. The device has an insulation voltage (Ui) of 440V AC and an overvoltage category of III.
Designed for DIN rail mounting, the 5SY4311-7 has a width of 54mm, corresponding to 3 modular units. It supports a wide range of conductor cross-sections, from 0.75 mm² to 35 mm² for solid and stranded conductors. The mechanical service life is rated for a typical 10,000 switching cycles.
Additional features include halogen-free and silicon-free construction, making it suitable for various environmental requirements. The protection class is IP20 with connected conductors. It also supports combined terminals at the top and bottom and is sealable.
| 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 5A at 35°C.
The supply voltage is rated at 400V AC, and the insulation voltage (Ui) is 440V AC.
This miniature circuit breaker has 3 poles.
The switching capacity is 10kA according to EN 60898 and 35kA according to IEC 60947-2.
The tripping characteristic class is C.
It is designed for DIN rail mounting.