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This Siemens 5SY4104-7 is a 1-pole miniature circuit breaker suitable for AC power systems. It operates with a rated voltage of 400V and has a current rating of 4A at 35°C. The breaker features a C-curve tripping characteristic, providing protection against overcurrents and short circuits with a breaking capacity of 10kA according to EN 60898.
Designed for industrial and mechanical engineering applications, this circuit breaker mounts on a DIN rail using a quick assembly system. It has an insulation voltage of 440V and an IP20 protection class when conductors are connected. The unit is halogen-free and sealable, offering enhanced safety and tamper resistance.
Key electrical specifications include a maximum DC operating voltage of 72V and a typical mechanical service life of 10,000 switching cycles. The power loss per pole at rated current and AC in a hot operating state is 1.3W. Connection terminals accommodate solid, stranded, and finely stranded conductors ranging from 0.75 mm² to 35 mm².
The operational current rating at 35°C is 4A.
The rated supply voltage at AC is 400V.
The switching capacity according to EN 60898 is 10 kA.
This is a 1-pole miniature circuit breaker.
The tripping characteristic class is C.
The protection class is IP20 with connected conductors.
Yes, this product is halogen-free.