Siemens SENTRON 5SY4205-7KK11 miniature circuit breaker, 2-pole, C-curve, 0.5 A rated, 10 kA (EN 60898) / 35 kA (IEC 60947-2), railway design, IP20.
| 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 |
The 0.5 A nominal rating holds at 35 °C ambient. At 40 °C it derates to 0.47 A, at 50 °C to 0.44 A, and at 60 °C to 0.4 A.
Designed specifically for railway applications — the construction includes halogen-free and silicon-free materials, sealable terminals, and combined top/bottom terminals that accept a wide range of conductors. Touch protection is integrated.
The 5SY4205-7KK11 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time.
The overall depth is 76 mm, with an installation depth of 70 mm behind the panel face.
The device carries IEC 60947-2 and EN 60898 breaking-capacity ratings, is halogen-free and silicon-free, and is designed for railway applications. Specific RoHS, REACH, and UL declarations are available from Siemens on request.
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