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This Siemens 5SJ4125-7HG40 is a 1-pole miniature circuit breaker designed for reliable circuit protection. It features a tripping characteristic class C and a rated current of 25A, suitable for operation at up to 400V AC.
The breaker offers a significant short circuit breaking capacity of 14kA according to UL 1077 and CSA C22.2 No.235, ensuring safety in fault conditions. It is built to withstand 10,000 mechanical switching cycles.
Designed for industrial and mechanical engineering applications, this circuit breaker mounts on a standard DIN rail and has a compact width of 18mm. It includes features like touch protection and is sealable for added security. The terminals accommodate conductor cross-sections from 0.75 mm² to 25 mm².
Environmental considerations include a degree of pollution of 3 and protection class IP20 with connected conductors. The product is halogen-free and silicon-free.
The operational current rating is 25A at 30°C and 40°C, decreasing slightly at higher temperatures.
The rated supply voltage is 400V AC, with a maximum operating voltage of 120V AC according to UL 489 and CSA C22.2 No. 5-02.
The switching capacity current is 10 kA according to EN 60898 and 15 kA according to IEC 60947-2. The breaking capacity short-circuit current is 14 kA according to UL 1077 and CSA C22.2 No.235.
It is designed for DIN rail mounting.
The tripping characteristic class is C.
Connectable conductor cross-section for finely stranded conductors with core end processing ranges from a minimum of 0.75 mm² to a maximum of 25 mm².
Yes, the product feature indicates it is halogen-free.