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The Siemens 5SY4603-5 is a miniature circuit breaker designed for industrial applications. It features a 4-pole configuration with a 3+N pole design, providing robust circuit protection.
This breaker operates at a rated voltage of 400V AC and has a current rating of 3A at 35°C, with derated values at higher temperatures. It boasts a switching capacity of 10kA according to EN 60898 and higher ratings under IEC standards, ensuring safety during short-circuit events.
The device is built for reliability with a mechanical service life of 10,000 switching cycles. It meets overvoltage category III and degree of pollution 3 standards. The breaker is halogen-free and silicon-free, contributing to environmental safety.
Installation is facilitated by a DIN rail mounting type and a quick assembly system. It supports a wide range of conductor cross-sections, from 0.75 mm² to 35 mm² for solid and stranded wires, with specific limits for finely stranded conductors. Tightening torques are specified for secure screw-type terminal 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 is 3A at 35°C, and it derates to 2.54A at 60°C.
The switching capacity is 10kA according to EN 60898, 15kA at DC according to IEC 60947-2, and 35kA according to IEC 60947-2.
It uses a DIN Rail mounting type and a quick assembly system.
It can connect solid or stranded conductors from 0.75 mm² to 35 mm², and finely stranded conductors with core end processing from 0.75 mm² to 25 mm².
The rated supply voltage is 400V AC, with an insulation voltage (Ui) of 440V AC.