It meets IEC/EN 60898-1 for 10 kA and IEC/EN 60947-2 for 15 kA breaking capacity, with a maximum operating voltage of 440 V AC (single- or multi-phase).
The IP20 rating applies with connected conductors.
Siemens SENTRON 5SY4440-8 MCB, 4P D-curve, 10 kA, 72 mm
MPN5SY4440-8
Active
Siemens SENTRON 5SY4440-8, miniature circuit breaker 4P, D tripping characteristic, 400 V AC, breaking capacity 10 kA (EN 60898) / 15 kA (IEC 60947-2), rated for industrial and mechanical engineering applications.
$113.03Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| 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) | D |
| 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) | 3 W |
Product details
Frequently asked questions
What compliance certifications does the 5SY4440-8 carry?
It is certified to IEC/EN 60898-1, IEC/EN 60947-2, and UL1077. The breaker is also halogen-free, silicon-free, and rated IP20 with connected conductors.
MPN
5SY4440-8