Siemens SENTRON 5SY4414-8, 4-pole miniature circuit breaker, D characteristic, 0.3 A, 35 kA breaking capacity per IEC 60947-2.
| Parameter | Value |
|---|---|
| Brand name | SENTRON |
| Application suitability | Mechanical engineering / industry |
| Parameter | Value |
|---|---|
| Number of poles | 4 |
| Pole configuration | 4P |
| Rated current (In), AC | 0.3 A |
| Rated voltage, AC (multi-phase) | 440 V |
| Rated voltage, AC (single-phase) | 440 V |
| Voltage type | AC |
| Parameter | Value |
|---|---|
| Tripping characteristic (trip curve) | D |
| Rated breaking capacity (Icn), per EN 60898 | 10 kA |
| Rated breaking capacity, per IEC 60947-2 | 35 kA |
| Breaking capacity, AC (UL 1077 / CSA C22.2 No.235) | 5 kA |
| Overvoltage category | III |
| Pollution degree | 3 |
| Degree of protection (IP) | IP20, with connected conductors |
| Neutral conductor switching | No |
| Touch protection | Yes |
| Parameter | Value |
|---|---|
| Width in modular units | 4 |
| Width | 72 mm |
| Height | 90 mm |
| Depth | 76 mm |
| Installation depth | 70 mm |
| Fastening / mounting method | Quick assembly system |
| Mounting position | any |
| Combined terminal, top | Yes |
| Combined terminal, bottom | Yes |
| Tightening torque, max. | 75 °C |
| Tightening torque, min. | -40 °C |
| Sealable | Yes |
| Parameter | Value |
|---|---|
| Halogen-free | Yes |
| Silicone-free | Yes |
| Influence of ambient temperature (derating) | max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C |
The 5SY4414-8: At 72 mm wide (4 modular units), 76 mm deep, and 90 mm high, it fits standard SENTRON distribution boards with quick-assembly mounting.
The MCB is rated IP20 with connected conductors — suitable for installation in dry indoor panels. The halogen-free, silicon-free construction meets stricter environmental specs for sensitive environments.
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