The Siemens 5SY4214-7KK11 is a SENTRON miniature circuit breaker designed for railway applications, with 2 poles, C-curve tripping characteristic, and a rated current of 0.3 A at AC voltage. Breaking capacity hits 10 kA per EN 60898 and 35 kA per IEC 60947-2, giving you selectivity headroom in a sub-distribution board or railway auxiliary panel. Temperature derating is published: at 35 °C it holds 0.3 A, drops to 0.28 A at 40 °C, 0.27 A at 45 °C, 0.26 A at 50 °C, 0.25 A at 55 °C, and 0.24 A at 60 °C — factor that into your thermal environment.
Siemens 5SY4214-7KK11 SENTRON MCB, 2P C 0.3A 10kA
MPN5SY4214-7KK11
Siemens SENTRON 5SY4214-7KK11 miniature circuit breaker, 2-pole, C-curve, 0.3 A, 10 kA (EN 60898) / 35 kA (IEC 60947-2), IP20, -40 to 75 °C.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
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 |
|---|---|
| Energy Limitation Class | 3 |
Product details
MPN
5SY4214-7KK11