At 36 mm wide (2 modular units), 76 mm deep, and 90 mm tall, the 5SY5225-6CC12 mounts on a standard DIN rail via the quick assembly system and can be installed in any orientation. The IP20 rating applies with connected conductors — the terminals are finger-safe but the unit is not sealed against moisture; it belongs inside a railway-rated enclosure.
Siemens SENTRON 5SY5225-6CC12 MCB, 2P B25, 440 VDC, 10 kA
MPN5SY5225-6CC12
Siemens SENTRON 5SY5225-6CC12 miniature circuit breaker, 2-pole, B-curve, 25 A, 440 VDC, 10 kA, IP20, 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 |
| Application environment | Railway |
| Parameter | Value |
|---|---|
| Number of poles | 2 |
| Parameter | Value |
|---|---|
| Tripping characteristic class | B |
| 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 |
Product details
Frequently asked questions
What is 5SY5225-6CC12's listed depth (76 mm) on this component line?
The depth is 76 mm, with an installation depth of 70 mm.
What is 5SY5225-6CC12's listed width (36 mm) on this component line?
The width is 36 mm, which corresponds to 2 modular width units on a DIN rail.
Will 5SY5225-6CC12 drop into a panel that was specified around 5SY5250-7 without rewiring?
Yes — the 5SY5250-7 shares the same 2-pole footprint, 36 mm width, 76 mm depth, and DIN-rail mounting, so physical fit is identical. However, the 5SY5250-7 is a C-curve AC/DC breaker; the 5SY5225-6CC12 is a B-curve DC-only unit. If the circuit expects AC or needs a higher inrush tolerance, the C-curve may be required.
MPN
5SY5225-6CC12