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This Siemens 5SJ41257HG41 is a 1-pole miniature circuit breaker from the 5SJ4 series, designed for reliable protection in industrial and mechanical engineering applications. It operates with a rated supply voltage of 400V AC and a maximum AC operating voltage of 240V according to UL 489 and CSA C22.2 No. 5-02 standards. The breaker features a C-trip characteristic and a significant short circuit breaking capacity of 14kA at AC according to UL 1077 and CSA C22.2 No.235.
With a rated operational current of 25A at AC and up to 40°C, it provides robust protection. The device has an insulation voltage (Ui) of 440V AC and a mechanical service life of typically 10,000 switching cycles. Its compact design with a width of 18mm and a depth of 70mm makes it suitable for standard DIN rail mounting.
The breaker is built with touch protection and features combined terminals for both top and bottom connections. It is also halogen-free, silicon-free, and sealable, meeting various environmental and application requirements. The power loss per pole is rated at 2.9W in a hot operating state.
The Siemens 5SJ41257HG41 has 1 pole.
The rated operational current for the 5SJ41257HG41 is 25A at AC and up to 40°C.
The maximum AC operating voltage according to UL 489 and CSA C22.2 No. 5-02 is 240V.
The short circuit breaking capacity (Icn) at AC according to UL 1077 and CSA C22.2 No.235 is 14 kA.
The tripping characteristic class is C.
It is mounted on a standard DIN rail.
Yes, the Siemens 5SJ41257HG41 is halogen-free.