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The Siemens 5SJ4306-7HG42 is a 3-pole miniature circuit breaker designed for reliable circuit protection in industrial and mechanical engineering applications. It features a C-trip characteristic and a rated current of 6A, with a switching capacity of 10kA according to EN 60898.
This circuit breaker operates at a rated voltage of 400V AC and has an insulation voltage of 440V AC. It is designed for DIN rail mounting and has a compact width of 54mm, corresponding to 3 modular width units. The device offers a mechanical service life of 10,000 switching cycles and is built with touch protection.
Additional technical details include a power loss of 2.7W per pole and a maximum tightening torque of 3.5 N·m for its screw terminals. The circuit breaker is suitable for environment B regarding EMC and has a protection class of IP20 with connected conductors.
Key features include halogen-free, sealable, and silicon-free construction, making it suitable for various demanding environments. It also supports the installation of supplementary devices.
The rated current is 6A at 30°C and 40°C, derating to 5.4A at 60°C.
The switching capacity is 10kA per EN 60898 and 15kA per IEC 60947-2.
The rated operating voltage is 400V AC. Maximum operating voltages are 277V AC (UL 489) and 60V DC (125V DC for 2-channel).
The typical mechanical service life is 10,000 switching cycles.
Protection class is IP20 with connected conductors and IP40 in the handle range.
Finely stranded conductors with core end processing from 0.75 mm² to 25 mm² can be connected.
The circuit breaker is designed for DIN Rail mounting.