It carries a C-curve trip characteristic, meaning it tolerates brief inrush currents up to 5–10× rated current before tripping — suited for moderate inductive or capacitive loads where nuisance tripping on energization must be avoided. At 35 °C ambient, it is rated 4 A; derate to 3.2 A at 55 °C and 3.01 A at 60 °C, so factor the enclosure temperature into your BOM line. Breaking capacity is 10 kA at 440 V DC per IEC 60947-2, with a maximum operating voltage of 500 V DC. This SCCR covers most auxiliary DC bus faults in traction or signaling panels without cascading upstream.
Siemens 5SY5204-7CC11 SENTRON MCB, 2P C-curve 4 A DC, 10 kA
MPN5SY5204-7CC11
Siemens SENTRON 5SY5204-7CC11, 2-pole miniature circuit breaker, C-curve, 4 A (35 °C), 440 V DC, 10 kA breaking capacity per IEC 60947-2, 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 | 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 |
Product details
MPN
5SY5204-7CC11