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The Siemens 5SY4340-6 is a 3-pole miniature circuit breaker from the SENTRON product family. It is designed for AC voltage applications with a rated supply voltage of 400V and an insulation voltage of 440V.
This circuit breaker has an operational current rating of 40A at 35°C, with varying ratings at higher temperatures. It features a B-trip characteristic and a switching capacity of 10kA according to EN 60898, and 15kA according to IEC 60947-2. The device is suitable for mechanical engineering and industrial applications.
With a mechanical service life of 10,000 switching cycles, the 5SY4340-6 offers reliable performance. It has an IP20 protection class with connected conductors and is designed for DIN rail mounting. The unit dimensions are 90mm height, 54mm width, and 76mm depth, with an installation depth of 70mm, occupying 3 modular width units.
Additional features include halogen-free and silicon-free construction, sealable design, and the ability to install supplementary devices. It supports conductor cross-sections from 0.75 mm² to 35 mm² for solid and stranded conductors.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The Siemens 5SY4340-6 has a voltage rating of 480V AC.
The current rating is 40A.
The mechanical service life is 10,000 switching cycles.
It complies with IEC 60898-1, IEC 60947-2, and UL 1077 standards.
It is mounted on a DIN rail.
Yes, it is halogen-free.