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The Siemens 5SY4120-5 is a miniature circuit breaker designed for power distribution and low voltage switchgear applications. This 1-pole device operates with a rated current of 20A and a supply voltage of up to 400V AC, with a single-phase operation rated at 230V.
It offers a significant switching capacity of 10kA according to EN 60898 and 20kA according to IEC 60947-2, ensuring reliable protection. The tripping characteristic is Class A. The breaker has a mechanical service life of 10,000 switching cycles and is built for industrial environments.
Designed for DIN rail mounting, this circuit breaker has an IP20 protection class with connected conductors. It is suitable for mechanical engineering and industrial applications, providing essential circuit protection.
The Siemens 5SY4120-5 is compliant with RoHS3 standards and has an MSL of 1.
The rated operational current at 35°C is 20A.
The rated supply voltage is 400V AC, and for single-phase operation, it is 230V AC.
The switching capacity is 10kA according to EN 60898 and 20kA according to IEC 60947-2.
The tripping characteristic is Class A.
It is designed for DIN rail mounting.
The protection class is IP20 with connected conductors.