Siemens SENTRON 5SJ4 series, 3-pole miniature circuit breaker, D tripping characteristic, 10 kA (EN 60898) / 15 kA (IEC 60947-2), 400 V AC / 60 V DC, 50 Hz, DIN rail mount.
| Parameter | Value |
|---|---|
| Brand name | SENTRON |
| Number of poles | 3 |
| Pole configuration | 3P |
| Suitability for operation | Mechanical engineering / industry |
| Parameter | Value |
|---|---|
| Tripping characteristic (curve) | D |
| Breaking capacity per EN 60898 | 10 kA |
| Breaking capacity per IEC 60947-2 | 15 kA |
| Overvoltage category | 3 |
| IP protection class | IP20, with connected conductors, IP 40 in the handle range |
| Pollution degree | 3 |
| Parameter | Value |
|---|---|
| Supply frequency range | 50/60 Hz |
| Power loss per pole at rated current (AC, hot) | 2.5 W |
| Mechanical service life (operating cycles, typ.) | 10 000 |
| Neutral conductor switching | No |
| Parameter | Value |
|---|---|
| Modular width units | 3 |
| Mounting position | any |
| Width | 54 mm |
| Height | 110 mm |
| Depth | 70 mm |
| Installation depth | 70 mm |
| Terminal tightening torque, max. | 75 °C |
| Terminal tightening torque, min. | -40 °C |
| Combined terminal, top | Yes |
| Combined terminal, bottom | Yes |
| Fastening method | on standard mounting rail |
| Sealable | Yes |
| Accepts supplementary devices | Yes |
| Parameter | Value |
|---|---|
| Halogen-free | Yes |
| Silicone-free | Yes |
| Vibration resistance (IEC 60068-2-6) | ±1 mm at 5 to 25 Hz; 50 m/s² at 25 to 150 Hz |
The Siemens 5SJ4311-8HG41 is a SENTRON 3-pole miniature circuit breaker with a D tripping characteristic, designed for 400 V AC / 60 V DC circuits at 50 Hz.
Vibration resistance: 50 m/s² at 25–150 Hz and 60 m/s² at 35 Hz (4 sec). Sealable, halogen-free, silicon-free. Suitability noted for mechanical engineering and industry applications.
Both are 3-pole Siemens MCBs on the same DIN-rail footprint, but the 5SY4140-7 is a different series with a C characteristic. The 5SJ4311-8HG41 uses a D curve, so it will physically fit the same rail space but the trip characteristic differs — verify coordination with downstream loads before swapping.
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