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This Siemens 5SY4420-5 is a 4-pole miniature circuit breaker designed for industrial applications. It operates with AC voltage and has a rated current of 20A, with a breaking capacity of 10kA according to EN 60898.
The circuit breaker features a tripping characteristic class A, suitable for protecting circuits against overcurrents and short circuits. It has an insulation voltage of 440V and an overvoltage category of III. The device is designed for DIN rail mounting and offers a mechanical service life of 10,000 switching cycles.
Key technical data includes a supply voltage of 400V AC and a maximum DC operating voltage of 72V. The protection class is IP20 with connected conductors. It supports a wide range of conductor cross-sections, from 0.75 mm² to 35 mm² for solid and stranded wires.
Additional features include halogen-free and silicon-free construction, making it suitable for various environmental requirements. The unit is sealable and can accommodate supplementary devices.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The rated operational current for the Siemens 5SY4420-5 circuit breaker is 20A at AC and 35°C.
The Siemens 5SY4420-5 has a rated supply voltage of 400V AC and an insulation voltage of 440V.
The breaking capacity of the Siemens 5SY4420-5 is 10 kA according to EN 60898 and 20 kA according to IEC 60947-2.
The Siemens 5SY4420-5 is a 4-pole miniature circuit breaker.
The tripping characteristic class of the Siemens 5SY4420-5 is A.
The Siemens 5SY4420-5 is designed for DIN rail mounting.