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.
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
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Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| Overvoltage category | III |
| Parameter | Value |
|---|---|
| Width | 54 mm |
| Height | 90 mm |
| Depth | 76 mm |
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