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The Siemens 5SY4240-6 is a 2-pole miniature circuit breaker designed for reliable overcurrent protection in industrial and mechanical engineering applications. It operates with a rated voltage of 400V AC and offers a switching capacity of 10kA according to EN 60898.
This circuit breaker features a Type B tripping characteristic, making it suitable for protecting circuits with lower inrush currents. The operational current is rated at 40A at 35°C, with derated values provided for higher ambient temperatures up to 60°C. It supports a wide range of conductor cross-sections, from 0.75 mm² to 35 mm² for solid and stranded conductors.
Constructed with halogen-free and silicon-free materials, the 5SY4240-6 meets stringent environmental requirements. It has a mechanical service life of 10,000 switching cycles and is designed for quick assembly onto a DIN rail, with a standard installation depth of 70 mm. The device also features combined terminals at both the top and bottom for flexible wiring.
Key technical data includes an insulation voltage (Ui) of 440V AC, an overvoltage category of III, and a degree of pollution of 3. The protection class is IP20 with connected conductors. Supplementary devices can be installed, and the unit is sealable for added security.
| 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 5SY4240-6 circuit breaker is 40A at 35°C.
The switching capacity current according to EN 60898 is rated at 10 kA.
The 5SY4240-6 features a Type B tripping characteristic class.
The supply voltage at AC is rated at 400 V.
Connectable conductor cross-section ranges from 0.75 mm² to 35 mm² for solid and stranded conductors.
Yes, the Siemens 5SY4240-6 is halogen-free.