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The Siemens 5SY4405-7 is a 4-pole miniature circuit breaker from the 5SY4 series, designed for robust electrical protection. It operates on AC voltage with a rated value of 400V and offers a significant switching capacity of 10kA according to EN 60898.
This circuit breaker features a C-type tripping characteristic, making it suitable for protecting circuits with moderate inrush currents. The operational current is rated at 0.5A at 35°C, with derating at higher temperatures. It supports a wide range of conductor cross-sections, from 0.75 mm² to 35 mm² for solid and stranded wires, and up to 25 mm² for finely stranded wires with core end processing.
Designed for mechanical engineering and industrial applications, the 5SY4405-7 is built for reliability with a typical mechanical service life of 10,000 switching cycles. It mounts easily on a DIN rail and has a compact design with dimensions of 90mm height, 72mm width, and 76mm depth, fitting into 4 modular width units. The device also includes features like being halogen-free and sealable, enhancing its application versatility.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The operational current is 0.5 A at 35 °C, 0.48 A at 40 °C, 0.46 A at 45 °C, 0.45 A at 50 °C, 0.44 A at 55 °C, and 0.42 A at 60 °C.
The supply voltage rating is 400 V AC.
The insulation voltage is rated at 440 V AC.
The switching capacity current is 10 kA according to EN 60898 standards.
It is approved by CCC, CE, EAC, IMQ, RCM, UR, and VDE.
Yes, the device is halogen-free.