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This Siemens 5SY4240-7 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 a current rating of 40A, featuring a C-curve tripping characteristic for specific load types.
The circuit breaker offers a switching capacity of 10kA according to EN 60898 and 15kA according to IEC 60947-2. It is designed for DIN rail mounting with a standard installation depth of 70mm and a width of 36mm (2 modular units).
Key features include a mechanical service life of 10,000 switching cycles, an IP20 protection class with connected conductors, and halogen-free construction. It supports conductor cross-sections from 0.75 mm² to 35 mm² for solid and stranded wires.
This component is suitable for use in systems with an overvoltage category of III and a degree of pollution of 3. It is also equipped with combined terminals for both top and bottom connections.
| 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 at AC is 40A.
The rated supply voltage at AC is 400V.
The breaking capacity is 10kA according to EN 60898 and 15kA according to IEC 60947-2.
It features a C-curve tripping characteristic.
It is designed for DIN rail mounting.
Yes, the Siemens 5SY4240-7 is halogen-free.