Siemens SENTRON 5SY4403-5 miniature circuit breaker, 4-pole, 10 kA (EN 60898-1), 35 kA (IEC 60947-2), tripping characteristic A.
| Parameter | Value |
|---|---|
| Brand name | SENTRON |
| Application suitability | Mechanical engineering / industry |
| Parameter | Value |
|---|---|
| Number of poles | 4 |
| Pole configuration | 4P |
| Rated voltage, AC (multi-phase) | 440 V |
| Parameter | Value |
|---|---|
| Tripping characteristic (trip curve) | A |
| Overvoltage category | III |
| Pollution degree | 3 |
| Degree of protection (IP) | IP20, with connected conductors |
| 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 |
| Parameter | Value |
|---|---|
| Power loss per pole, AC (hot state, at In) | 1.9 W |
The 5SY4403-5: Mounts in any position; the quick assembly system snaps onto DIN rail. Sealable model — can be locked in off position for LOTO.
Complies with IEC/EN 60898-1 and IEC/EN 60947-2 for breaking capacity; also UL 1077 listed. Suitable for mechanical engineering and industrial applications. Halogen-free and silicon-free construction.
Characteristic A — fast trip curve, typically used for semiconductor protection or sensitive loads.
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