Width is 18 mm (one modular unit), depth 76 mm, height 90 mm. Installation depth 70 mm — verify clearance behind the DIN rail; the quick-assembly system clips onto standard 35 mm rail. Any mounting position is permitted. IP20 with connected conductors; sealable and touch-protected terminals. Halogen-free and silicon-free construction, so no corrosive off-gassing in sealed enclosures.
Siemens 5SY5102-6CC12 SENTRON MCB, 1P B-Curve 2 A DC, 250 V
MPN5SY5102-6CC12
Siemens SENTRON 5SY5102-6CC12, 1-pole miniature circuit breaker, B tripping characteristic, 2 A rated current at 35 °C, DC 250 V max, for railway applications.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Product designation | Miniature circuit breaker |
| Brand name | SENTRON |
| Number of poles | 1 |
| Pole design | 1P |
| Application suitability | Railway |
| Parameter | Value |
|---|---|
| Tripping characteristic class | B |
| 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 |
Product details
Frequently asked questions
What is the closest functional second-source to 5SY5102-6CC12?
The 5SY4101-7CV is a 1-pole B-curve 1 A MCB in the same SENTRON family, but at half the current rating. For a direct 2 A drop-in, the 5SY5102-6CC12 is the correct railway-rated variant; the 5SY4 series lacks the railway designation and vibration rating. No rewiring needed for the same DIN footprint, but verify the DC voltage rating and ambient derating against your application.
What compliance documentation does Siemens provide for 5SY5102-6CC12?
The product is halogen-free and silicon-free, which supports RoHS and REACH compliance. For specific declarations (CE, UKCA, UL, IEC 60898 / IEC 60947-2), request the manufacturer's declaration with your RFQ — these are provided on request per shipment.
Where can I buy 5SY5102-6CC12 and what is the lead time?
This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm lead time and price.
MPN
5SY5102-6CC12