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The Siemens 5SY4225-5 is a 2-pole miniature circuit breaker designed for reliable circuit protection in industrial and mechanical engineering applications. It offers a current rating of 25A and a voltage rating of 400V AC, with a switching capacity of 10kA according to EN 60898.
This circuit breaker features an 'A' tripping characteristic, making it suitable for specific protection requirements. It is designed for convenient DIN rail mounting and has a mechanical service life of typically 10,000 switching cycles. The device is halogen-free and silicon-free, contributing to environmental safety.
Key electrical specifications include an insulation voltage (Ui) of 440V and a maximum DC operating voltage of 72V. The breaker supports a wide range of conductor cross-sections, from 0.75 mm² to 35 mm² for solid and stranded conductors, and up to 25 mm² for finely stranded conductors with core end processing. Tightening torques for screw terminals range from 2.5 N·m to 3.5 N·m.
With a protection class of IP20 when connected, the Siemens 5SY4225-5 is built for robust performance. Its dimensions are 90 mm in height, 36 mm in width, and 76 mm in depth, with an installation depth of 70 mm, occupying 2 modular width units.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The operating voltage is rated at 480V AC.
The current rating is 25A.
It complies with IEC 60898-1, IEC 60947-2, and UL 1077 standards.
The switching capacity is 20 kA at IEC 60947-2 standards for AC currents.
The device measures 90 mm in height, 36 mm in width, and 76 mm in depth.
Yes, it is halogen-free.
Yes, it is designed for DIN rail mounting.