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| Manufacturer Name | |
| AEC Qualified | |
| Actuator Type | |
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| Automotive Grade | |
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| Depth | |
| Halogen Free | |
| Height | |
| Illumination | |
| Industrial Grade | |
| Medical Grade | |
| Military Grade | |
| Mounting Type | |
| Number of Poles | |
| Operating Voltage | |
| SVHC Present | |
| Voltage Rating | |
| Width |
This Siemens 5SJ4104-8HG42 is a 1-pole miniature circuit breaker from the 5SJ4 series, designed for reliable circuit protection. It operates with a D-trip characteristic and has a rated current of 4A at 30°C, with a maximum operating voltage of 277V AC according to UL 489 and CSA C22.2 No. 5-02.
The breaker offers a switching capacity of 10kA according to EN 60898 and 15kA according to IEC 60947-2. It is built with a mechanical service life of typically 10,000 switching cycles. The unit is designed for DIN rail mounting and features combined terminals for both top and bottom connections.
Constructed with halogen-free materials, this circuit breaker is suitable for industrial and mechanical engineering applications. It has a protection class of IP20 with connected conductors and IP40 in the handle range. The compact design with a width of 18mm makes it suitable for space-constrained installations.
The maximum operating voltage is 277V AC, and the rated voltage is 400V AC.
It is designed for DIN rail mounting.
Yes, it is halogen-free.
The rated current is 4A at 30°C, with derating at higher temperatures (e.g., 3.6A at 60°C).
It has a switching capacity of 10kA according to EN 60898 and 15kA according to IEC 60947-2.
IP20.
Finely stranded conductors from 0.75 mm² to 25 mm² with core end processing.