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The Siemens 5SY4303-7 is a 3-pole miniature circuit breaker designed for reliable circuit protection in industrial and mechanical engineering applications. It operates with a rated current of 3A and a voltage rating of 400V AC, featuring a C tripping characteristic for standard load protection.
This circuit breaker offers a switching capacity of up to 10kA according to EN 60898 and 35kA according to IEC 60947-2. It has a mechanical service life of typically 10,000 switching cycles and is built with touch protection for enhanced safety. The device supports conductor cross-sections from 0.75 to 35 mm² and is suitable for DIN rail mounting.
Key features include halogen-free construction and sealability. The compact design with a width of 54 mm and installation depth of 70 mm makes it suitable for various control panel configurations. It operates within an ambient temperature range of -40°C to +70°C.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The current rating is 3A.
The voltage rating is 400V.
It has 3 poles.
The tripping characteristic is Class C.
The switching capacity is 10kA according to EN 60898 and 35kA according to IEC 60947-2.
It uses DIN rail mounting.
Yes, it is halogen-free.