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The Siemens 5SY4363-8 is a 3-pole miniature circuit breaker designed for industrial and mechanical engineering applications. It operates with a rated voltage of 400V AC and has a current rating of 63A.
Key electrical specifications include a D-curve tripping characteristic, a switching capacity of 10kA according to EN 60898, and a short circuit breaking capacity of 5kA according to UL 1077. The breaker has an insulation voltage (Ui) of 440V and an overvoltage category of III.
Designed for easy installation, this circuit breaker features DIN rail mounting and a mechanical service life of 10,000 switching cycles. It also includes touch protection and is sealable. The unit is halogen-free and silicon-free, contributing to environmental safety.
Connection details include support for solid, stranded, and finely stranded conductors ranging from 0.75 mm² to 35 mm², with specific limits for finely stranded wires. The tightening torque for screw terminals is between 2.5 N·m and 3.5 N·m.
The voltage rating is 400 V AC.
The current rating is 63 A.
It has a D tripping characteristic.
The switching capacity is 10 kA.
The short-circuit breaking capacity (Icn) is 5 kA.
It mounts on a DIN rail.
Yes, it is halogen-free.