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This Siemens 5SY4125-7 is a single-pole miniature circuit breaker from the SENTRON product family. It is designed for AC circuits with a rated voltage of 400V and a rated current of 25A at 35°C.
The breaker offers a switching capacity of 10kA according to EN 60898 and 15kA according to IEC 60947-2. It has a C-type tripping characteristic, suitable for protecting circuits against overcurrents and short circuits.
With a mechanical service life of 10,000 switching cycles, this circuit breaker is built for durability. It features a compact design with a width of 18mm and an installation depth of 70mm, making it suitable for DIN rail mounting. The terminals accommodate solid or stranded conductors from 0.75mm² to 35mm².
Additional features include halogen-free and silicon-free construction, and it is sealable for security purposes. The breaker is rated for overvoltage category III and degree of pollution 3.
The operational current rating is 25A at 35°C.
The rated supply voltage is 400V AC.
The switching capacity is 10kA according to EN 60898 and 20kA according to IEC 60947-2.
It has a Class C tripping characteristic.
This is a 1-pole circuit breaker.
It supports DIN rail mounting.
Yes, this circuit breaker is halogen-free.