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The Siemens 5SY4520-8 is a miniature circuit breaker designed for reliable circuit protection in industrial and mechanical engineering applications. This 2-pole device operates at a rated voltage of 230V AC and has a current rating of 20A.
Key electrical specifications include a switching capacity of 10kA according to EN 60898 and 20kA according to IEC 60947-2. It features a D tripping characteristic, suitable for applications with high inrush currents. The breaker is designed with a 1P+N pole configuration and offers a mechanical service life of 10,000 switching cycles.
For installation, the 5SY4520-8 utilizes a quick assembly system for DIN rail mounting, with dimensions of 90mm height, 36mm width, and 76mm depth. It supports conductor cross-sections from 0.75 mm² to 35 mm² for solid and stranded wires. The device also includes features like combined terminals, neutral conductor switching, and is halogen-free and silicon-free.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The operational current rating for the Siemens 5SY4520-8 circuit breaker is 20 A at AC and at 35 °C.
The supply voltage rating for the 5SY4520-8 is 230 V at AC.
The Siemens 5SY4520-8 circuit breaker has 2 poles.
The switching capacity current according to EN 60898 is rated at 10 kA, and according to IEC 60947-2 is rated at 20 kA.
The tripping characteristic class of the 5SY4520-8 is D.
The Siemens 5SY4520-8 uses DIN Rail mounting.
Yes, the Siemens 5SY4520-8 is halogen-free.