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The Siemens 5SY4308-5 is a 3-pole miniature circuit breaker suitable for mechanical engineering and industrial applications. It operates with an AC supply voltage of 400V and has a rated current of 8A at 35°C, with derated values at higher temperatures.
This circuit breaker features a tripping characteristic class A and a switching capacity of 10kA according to EN 60898, and 20kA according to IEC 60947-2. It is designed with a mechanical service life of 10,000 switching cycles and an overvoltage category of III.
The device supports conductor cross-sections from 0.75 mm² to 35 mm² for solid and stranded wires, and up to 25 mm² for finely stranded wires with core end processing. It mounts on a DIN rail and has dimensions of 90mm height, 54mm width, and 76mm depth, with an installation depth of 70mm.
Additional features include combined terminals at the top and bottom, halogen-free construction, and sealability. The protection class is IP20 with connected conductors.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The rated current is 8A at 35°C, and it derates at higher temperatures.
The operating voltage is 400V AC.
The switching capacity is 10kA according to EN 60898 and 20kA according to IEC 60947-2.
It has 3 poles.
It uses a DIN rail mounting system.
Yes, the Siemens 5SY4308-5 is halogen-free.