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This Siemens 5SY4408-7 is a 4-pole miniature circuit breaker designed for electrical power distribution and protection. It features a tripping characteristic class C and an operational current rating of 8A at 35°C, with derated values at higher temperatures.
The circuit breaker has a rated voltage of 400V AC and a switching capacity of 10kA according to EN 60898, and up to 20kA according to IEC 60947-2. It is suitable for mechanical engineering and industrial applications.
Designed for DIN rail mounting, this device has a width of 72mm, corresponding to 4 modular width units. It supports a wide range of conductor cross-sections, from 0.75mm² to 35mm² for solid and stranded wires. The protection class is IP20 with connected conductors.
Additional features include a mechanical service life of 10,000 switching cycles, overvoltage category III, and degree of pollution 3. It is also halogen-free and 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 8A at 35°C, with values decreasing at higher ambient temperatures.
The rated supply voltage at AC is 400V, and the insulation voltage is 440V.
This circuit breaker has 4 poles.
The switching capacity is 10kA according to EN 60898 and 20kA according to IEC 60947-2.
It uses DIN rail mounting.
Yes, the product feature indicates it is halogen-free.