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The Siemens 5SJ4101-7HG42 is a 1-pole miniature circuit breaker designed for reliable circuit protection in industrial and mechanical engineering applications. It operates with a rated current of 1A and a supply voltage of up to 277V AC, with a maximum insulation voltage of 440V AC.
This circuit breaker offers a switching capacity of 10kA according to EN 60898 and 15kA according to IEC 60947-2. It features a C-trip characteristic, making it suitable for applications requiring a higher inrush current handling capability.
The device is built with a mechanical service life of typically 10,000 switching cycles. It has a compact design with a width of 18mm, fitting into a single modular width unit on a standard DIN rail. The protection class is IP20 with connected conductors and IP40 in the handle range.
Additional features include halogen-free construction, sealability, and silicon-free materials, contributing to its suitability for various environments. It supports conductor cross-sections from 0.75 mm² to 25 mm² with core end processing and has a maximum tightening torque of 3.5 N·m for screw-type terminals.
Maximum operating voltage is 277V AC, 60V DC for single channel, and 125V DC for 2-channel.
10kA according to EN 60898 and 15kA according to IEC 60947-2.
C-trip characteristic.
DIN rail mounting.
121mm height, 18mm width, 70mm depth.
Yes, the product is halogen-free.
IP20, with connected conductors IP40 in the handle range.