The 50 A rating holds at 35 °C ambient. Above that, the thermal-magnetic trip starts to pull in earlier: 47 A at 40 °C, 45.45 A at 45 °C, 43.8 A at 50 °C, and 42.1 A at 55 °C. If your panel runs warm — say 50 °C inside a sealed enclosure — plan for 43.8 A continuous, not the full 50 A. That derating curve is the number that governs the real load you can hang on it.
Siemens 5SY6350-7CC SENTRON MCB, 50 A, 3-Pole, C-Curve, 6 kA
MPN5SY6350-7CC
Siemens SENTRON 5SY6350-7CC miniature circuit breaker, 3-pole, 50 A, C characteristic, 6 kA breaking capacity per EN 60898, 440 V AC, 3 modular width units.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Brand name | SENTRON |
| Number of poles | 3 |
| Pole configuration | 3P |
| Suitability for operation | Mechanical engineering / industry |
| Parameter | Value |
|---|---|
| Tripping characteristic (curve) | C |
| Overvoltage category | III |
| IP protection class | IP20, with connected conductors |
| Energy limitation class | 3 |
| Pollution degree | 3 |
| Parameter | Value |
|---|---|
| Rated current (AC) | 50 A |
| Rated voltage (AC, multi-phase) | 440 V |
| Neutral conductor switching | No |
| Parameter | Value |
|---|---|
| Modular width units | 3 |
| Mounting position | any |
| Width | 54 mm |
| Height | 90 mm |
| Depth | 76 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 | Quick assembly system |
| Sealable | Yes |
| Parameter | Value |
|---|---|
| Halogen-free | Yes |
| Silicone-free | Yes |
| Influence of surrounding temperature | max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C |
Product details
Frequently asked questions
What is the breaking capacity of the 5SY6350-7CC?
Rated 6 kA per EN 60898 at 440 V AC multi-phase operation. That's the standard interrupting rating for a 3-pole MCB on a 400 V distribution board.
Does the 5SY6350-7CC switch the neutral?
No, this is a 3-pole breaker with no neutral conductor switching — it protects the three phases only.
Where can I buy the 5SY6350-7CC?
Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
MPN
5SY6350-7CC