| Category | |
| Manufacturer Name | |
| Actuator Type | |
| Approval Agency | |
| Current Rating | |
| Current Rating (Amps) | |
| Depth | |
| Halogen Free | |
| Height | |
| Illumination | |
| Industrial Grade | |
| Mounting Type | |
| Number of Poles | |
| SVHC Present | |
| Supply Voltage | |
| Voltage Rating | |
| Width |
This Siemens 5SJ4210-8HG42 is a miniature circuit breaker designed for reliable circuit protection in industrial and mechanical engineering applications. It features a 2-pole configuration and a tripping characteristic class D, with a rated operational current of 10A at 40°C.
The breaker offers a switching capacity of 10kA according to EN 60898 and 15kA according to IEC 60947-2. It is designed for AC/DC operation with a maximum operating voltage of 277V AC according to UL 489 and CSA C22.2 No. 5-02, and up to 125V DC in a 2-channel configuration. The device supports a supply voltage frequency of 50 Hz and has an insulation voltage (Ui) of 440V AC.
Constructed with halogen-free and silicon-free materials, this circuit breaker ensures environmental compliance. It features touch protection and combined terminals for both top and bottom connections. The mounting type is DIN rail, with dimensions of 121mm height, 36mm width, and 70mm depth. The mechanical service life is typically 10,000 switching cycles.
The operating voltage is 277V AC maximum (UL 489/CSA), 400V AC supply, 60V DC single channel, and 125V DC 2-channel (UL).
At 30°C and 40°C the rated current is 10A; at 45°C it is 9.7A; at 50°C it is 9.4A; at 55°C it is 9.1A; at 60°C it is 0.88A.
Breaking capacity is 10kA according to EN 60898 and 15kA according to IEC 60947-2. Per UL 1077 it is 10kA.
The breaker is approved under CCC, CE, EAC, UL489, and VDE.
Yes, the product is halogen-free and silicon-free as per datasheet.
Height 121mm, width 36mm, depth 70mm, installation depth 70mm, net weight 338g.