Siemens SENTRON 5SJ4 series, 5SJ4125-8HG40, 1-pole miniature circuit breaker, D tripping characteristic, 25 A rated current, 400 V AC / 60 V DC, 10 kA (EN 60898) / 15 kA (IEC 60947-2) breaking capacity.
| Parameter | Value |
|---|---|
| Product designation | Miniature circuit breakers |
| Brand name | SENTRON |
| Number of poles | 1 |
| Application suitability | Mechanical engineering / industry |
| Parameter | Value |
|---|---|
| Tripping characteristic class | D |
| Rated value (EN 60898) | 10 kA |
| Overvoltage category | 3 |
| Parameter | Value |
|---|---|
| Mounting position | any |
| Combined terminal, top | Yes |
| Combined terminal, bottom | Yes |
| Width | 18 mm |
| Height | 90 mm |
| Depth | 70 mm |
| Installation depth | 70 mm |
| Sealable | Yes |
| Parameter | Value |
|---|---|
| IP protection class | IP20, with connected conductors, IP 40 in the handle range |
| Halogen-free | Yes |
| Silicone-free | Yes |
Rated 25 A at 400 V AC, it clears faults up to 10 kA per EN 60898 and 15 kA per IEC 60947-2, so it handles the higher prospective fault current common in industrial installations. The 60 V DC maximum rating covers control-circuit applications like DC bus or battery-backed supplies.
IP20 with conductors connected, IP40 in the handle range — fine for enclosed panels, not for washdown zones.
1-pole, D-curve, 25 A rated current at 400 V AC, 60 V DC maximum. Breaking capacity: 10 kA per EN 60898, 15 kA per IEC 60947-2. Ambient temperature range -25 to +55 °C.
The 5SJ4125-8HG40 carries approvals per EN 60898 and IEC 60947-2. It is halogen-free and silicon-free. Touch protection is built in. Specific RoHS/REACH declarations are provided with the product documentation.
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