It breaks fault currents up to 10 kA per DIN EN60898-1 and 35 kA per IEC 60947-2 — the higher figure is what governs when the breaker is installed in an industrial distribution board with a high prospective fault level. Rated operating voltage is 400 V AC (single- or multi-phase) and 60 V DC, with a DC breaking capacity of 15 kA per IEC 60947-2. The 2-pole design switches both live conductors — no neutral switching. Environmental range covers -40 °C to +75 °C, with humidity derating above 55 °C. IP20 with connected conductors — fine inside a sealed panel; not for washdown zones.

Siemens SENTRON 5SY4201-7KK11 MCB, 2P, C-curve, 10 kA
Siemens SENTRON 5SY4201-7KK11 miniature circuit breaker, 2-pole, C characteristic, 10 kA (EN 60898) / 35 kA (IEC 60947-2), 400 V AC, 60 V DC, IP20, DIN rail mount.
Specifications
| Parameter | Value |
|---|---|
| Product designation | Miniature circuit breaker |
| Brand name | SENTRON |
| Application environment | Mechanical engineering / industry |
| Parameter | Value |
|---|---|
| Number of poles | 2 |
| Parameter | Value |
|---|---|
| Tripping characteristic class | C |
| Overvoltage category | III |
| Parameter | Value |
|---|---|
| Modular width units | 2 |
| Width | 36 mm |
| Height | 90 mm |
| Depth | 76 mm |
| Installation depth | 70 mm |
| Mounting position | any |
| Min. | -40 °C |
| Max. | 75 °C |
| Protection degree (IP) | IP20, with connected conductors |
| Parameter | Value |
|---|---|
| Pollution degree | 3 |
| Parameter | Value |
|---|---|
| At AC rated value | 400 V |
| According to EN 60898 rated value | 10 kA |
| With single-phase operation at AC rated value | 440 V |
| Energy Limitation Class | 3 |
Product details
Frequently asked questions
Where can I buy 5SY4201-7KK11 and how do I get a price?
The 5SY4201-7KK11 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
What is the breaking capacity of 5SY4201-7KK11?
10 kA per DIN EN60898-1 and 35 kA per IEC 60947-2 at 400 V AC; 15 kA per IEC 60947-2 at 60 V DC.
What compliance documentation does this brand provide for 5SY4201-7KK11?
The breaker is designed to DIN EN60898-1 and IEC 60947-2. It carries a pollution degree 3 rating and overvoltage category III. The product is halogen-free and silicon-free.