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The Siemens 5SJ4208-7HG41 is a 2-pole miniature circuit breaker designed for reliable protection in industrial environments. It offers an 8A operational current at AC and a significant short circuit breaking capacity of 14kA according to UL 1077 and CSA C22.2 No.235.
This circuit breaker operates with a C-trip characteristic, suitable for applications requiring higher inrush current handling. It has a rated insulation voltage of 440V AC and a rated supply voltage of 400V AC at 50Hz. The device is built to withstand demanding conditions, with a mechanical service life of typically 10,000 switching cycles.
Designed for easy installation, the 5SJ4208-7HG41 features a DIN rail mounting type and combined terminals for both top and bottom connections. Its dimensions are 110mm in height, 36mm in width, and 70mm in depth, occupying 2 modular width units. The enclosure provides IP20 protection with connected conductors and IP40 in the handle range.
Additional features include touch protection, sealability, and halogen-free construction. It is suitable for use in mechanical engineering and industry sectors. The connectable conductor cross-section ranges from 0.75 mm² to 25 mm² for finely stranded conductors with core end processing.
The maximum operating voltage is 240V AC according to UL 489 and CSA C22.2 No. 5-02, and 60V DC (single channel) or 125V DC (2-channel). The rated supply voltage is 400V AC at 50Hz.
C-curve.
10kA according to EN 60898 and 15kA according to IEC 60947-2.
8A at 30°C and 40°C, 7.8A at 45°C, 7.6A at 50°C, 7.4A at 55°C, 7.2A at 60°C.
10,000 switching cycles.
110mm height, 36mm width, 70mm depth. Mounts on DIN rail.
Yes, halogen-free.