Siemens SENTRON 5SY5 series, miniature circuit breaker, 1-pole, C-curve, 10 A, 10 kA per EN 60898, 15 kA per IEC 60947-2, designed for railway applications.
| Parameter | Value |
|---|---|
| Product designation | Miniature circuit breaker |
| Brand name | SENTRON |
| Number of poles | 1 |
| Pole design | 1P |
| Application suitability | universal current |
| Parameter | Value |
|---|---|
| Tripping characteristic class | C |
| Energy limitation class | 3 |
| Overvoltage category | III |
| Parameter | Value |
|---|---|
| Mounting position | any |
| Fastening method | Quick assembly system |
| Combined terminal, top | Yes |
| Combined terminal, bottom | Yes |
| Width | 18 mm |
| Height | 90 mm |
| Depth | 76 mm |
| Installation depth | 70 mm |
| Modular width units | 1 |
| Torque, min. | -40 °C |
| Torque, max. | 75 °C |
| Sealable | Yes |
| Parameter | Value |
|---|---|
| IP protection class | IP20, with connected conductors |
| Pollution degree | 3 |
| Halogen-free | Yes |
| Silicone-free | Yes |
On a DC circuit, it's rated 10 kA per EN 60898-2 at 220 V, and 15 kA per IEC 60947-2 — useful for DC bus protection in drives or battery-backed systems. Energy limitation class 3 means it clips the let-through energy on a fault, which helps with downstream device coordination and reduces arc-flash stress on the panel.
At 18 mm wide (1 modular unit), it occupies a single slot on a DIN rail.
This part is sourced through independent distribution and quoted to order against an RFQ. Submit an RFQ for current pricing and availability.
Both are 1-pole SENTRON MCBs on the same 18 mm footprint with identical mounting, so the 5SY5105-7KK11 will physically fit into a panel designed for the 5SY5240-7 without rewiring the DIN rail or busbar. The difference is the current rating and breaking capacity — verify the circuit's load and fault level before swapping.
The part carries the SENTRON brand and is designed to EN 60898 and IEC 60947-2 standards. It is halogen-free and silicon-free. For specific RoHS, REACH, or UL documentation, request it with your RFQ.
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