The Siemens 5SY4325-8CC11 is a 3-pole miniature circuit breaker from the SENTRON series, rated 25 A with a D tripping characteristic. It breaks 10 kA at 400 V AC (per EN 60898) — that's enough to handle moderate fault levels in industrial and railway distribution panels without upstream reinforcement. The D curve means the magnetic trip holds off inrush from motor loads and transformers; expect it to tolerate 10–20× rated current briefly before snapping open.
Siemens 5SY4325-8CC11 SENTRON MCB, 3P D 25A 10kA 400V
MPN5SY4325-8CC11
Siemens SENTRON miniature circuit breaker, 3-pole, D tripping characteristic, 25 A rated current, 10 kA breaking capacity at 400 V AC, for railway applications.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Brand name | SENTRON |
| Number of poles | 3 |
| Pole configuration | 3P |
| Suitability for operation | Mechanical engineering / industry |
| Parameter | Value |
|---|---|
| Tripping characteristic (curve) | D |
| Breaking capacity per EN 60898 | 10 kA |
| Overvoltage category | III |
| IP protection class | IP20, with connected conductors |
| Pollution degree | 3 |
| Parameter | Value |
|---|---|
| Rated voltage (AC, multi-phase) | 440 V |
| Voltage type (AC/DC) | AC |
| Supply frequency range | 50/60 Hz |
| Power loss per pole at rated current (AC, hot) | 2.1 W |
| Mechanical service life (operating cycles, typ.) | 10 000 |
| Neutral conductor switching | No |
| Rated voltage (AC, single-phase) | 440 V |
| Parameter | Value |
|---|---|
| Modular width units | 3 |
| Mounting position | any |
| Width | 54 mm |
| Height | 90 mm |
| Depth | 76 mm |
| Installation depth | 70 mm |
| Terminal tightening torque, max. | 75 °C |
| Terminal tightening torque, min. | -40 °C |
| Combined terminal, top | Yes |
| Combined terminal, bottom | Yes |
| Fastening method | Quick assembly system |
| Sealable | Yes |
| Accepts supplementary devices | Yes |
| Parameter | Value |
|---|---|
| Halogen-free | Yes |
| Silicone-free | Yes |
| Influence of surrounding temperature | max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C |
| Vibration resistance (IEC 60068-2-6) | ±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz |
Product details
Frequently asked questions
What is 5SY4325-8CC11's depth?
The depth is 76 mm; installation depth is 70 mm.
MPN
5SY4325-8CC11