The 5SY4440-5: It's designed for panel protection in mechanical engineering and industrial applications, mounting in any position on a DIN rail via a quick assembly system. Dimensions are 72 mm wide (4 modular units), 76 mm deep, and 90 mm high, with IP20 protection (with connected conductors). The breaker is halogen-free, silicon-free, and sealable, suited for environments requiring low outgassing.
Siemens 5SY4440-5 SENTRON MCB, 4P 40A Type A, 10kA
MPN5SY4440-5
Active
Siemens SENTRON 5SY4440-5, 4P 40A miniature circuit breaker, type A trip characteristic, 10 kA breaking capacity (EN 60898), 15 kA (IEC 60947-2).
$341.71Ref. price · indicative, final on quote
StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsListing updated Jun 2026
Specifications
Identification
| Parameter | Value |
|---|---|
| Brand name | SENTRON |
| Application suitability | Mechanical engineering / industry |
Ratings
| Parameter | Value |
|---|---|
| Number of poles | 4 |
| Pole configuration | 4P |
| Rated current (In), AC | 40 A |
| Rated voltage, AC (multi-phase) | 440 V |
| Rated voltage, AC (single-phase) | 440 V |
| Voltage type | AC |
Protection
| Parameter | Value |
|---|---|
| Tripping characteristic (trip curve) | A |
| Rated breaking capacity (Icn), per EN 60898 | 10 kA |
| Rated breaking capacity, per IEC 60947-2 | 15 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 |
Mechanical
| 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 |
Environmental
| 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 |
Product details
Frequently asked questions
What is the depth and width of the 5SY4440-5?
Depth is 76 mm, width is 72 mm (4 modular units).
MPN
5SY4440-5