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The Siemens 5SY4450-8 is a 4-pole miniature circuit breaker from the SENTRON series, designed for robust protection in industrial environments. It operates with a rated voltage of 400V AC and a current rating of 50A, featuring a D-type tripping characteristic suitable for inductive loads.
This circuit breaker offers a high switching capacity of 10kA according to EN 60898 and 15kA according to IEC 60947-2, ensuring reliable protection against overcurrents and short circuits. It has a mechanical service life of 10,000 switching cycles and is built with touch protection for enhanced safety.
The device supports a wide range of conductor cross-sections, from 0.75 mm² to 35 mm² for solid and stranded conductors, with specific limits for finely stranded conductors. It mounts on a DIN rail and has dimensions of 90mm height, 72mm width, and 76mm depth, with an installation depth of 70mm.
Additional features include halogen-free construction, sealability, and silicon-free properties, making it suitable for various demanding applications. The circuit breaker is compliant with standards such as IEC/EN 60898-1, IEC/EN 60947-2, and UL1077.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The Siemens 5SY4450-8 has 4 poles.
The operational current rating at 35°C is 50A.
The rated supply voltage is 400V AC.
The switching capacity according to EN 60898 is 10 kA.
It is designed for DIN rail mounting.
Yes, it is RoHS3 Compliant.
The MSL is 1 Unlimited.