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The Siemens 5SY4650-8 is a miniature circuit breaker designed for robust circuit protection in industrial and mechanical engineering applications. This 4-pole device, with a 3P+N pole design, offers a rated operational current of 50A at AC and a supply voltage rating of 400V.
Key electrical specifications include a switching capacity of 10kA according to EN 60898 and 15kA according to IEC 60947-2. It operates with a D tripping characteristic, suitable for applications with high inrush currents. The breaker is designed for AC voltage and has an insulation voltage (Ui) of 440V.
Mechanically, the 5SY4650-8 features a DIN rail mounting type for quick assembly and has dimensions of 90mm height, 72mm width, and 76mm depth, with an installation depth of 70mm. It occupies 4 modular width units. The device includes features like touch protection, sealable housing, and is halogen-free and silicon-free.
Connection details include support for solid and stranded conductors from 0.75mm² to 35mm², and finely stranded conductors up to 25mm². Tightening torques range from 2.5 to 3.5 N·m (22 to 31 lbf·in). The breaker is rated for an overvoltage category of III and a degree of pollution of 3.
| 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 5SY4650-8 is 50A at AC and at 35°C.
The supply voltage rating at AC is 400V, and the insulation voltage (Ui) is 440V.
The 5SY4650-8 has 4 poles, with a design of 3P+N.
The switching capacity current is 10kA according to EN 60898 and 15kA according to IEC 60947-2.
The 5SY4650-8 uses a DIN Rail mounting type.
Yes, the Siemens 5SY4650-8 is halogen-free.