The 3-pole design switches all three phases together, no neutral switching — common for three-phase motor feeds or heater banks. The IP20 rating means it's touch-proof only when wired; mount it inside a sealed enclosure if the panel sees washdown or outdoor spray.
Siemens 5SY4304-7CC11 SENTRON MCB, 3P, C-Curve, 10 kA, 400 V
MPN5SY4304-7CC11
Siemens SENTRON miniature circuit breaker, 3-pole, C characteristic, 10 kA per EN 60898, 400 V AC, 50/60 Hz, for railway applications, IP20, 3 modular width units.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 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) | C |
| Breaking capacity per EN 60898 | 10 kA |
| Overvoltage category | III |
| IP protection class | IP20, with connected conductors |
| Energy limitation class | 3 |
| 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) | 1.3 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
Where can I buy 5SY4304-7CC11 and how do I get a price?
This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time.
Will 5SY4304-7CC11 drop into a panel specified around 5SY4304-7CV without rewiring?
The 5SY4304-7CC11 shares the same 3-pole, C-curve, 10 kA, 400 V AC rating as the 5SY4304-7CV variant and the same 54 mm width and 76 mm depth. The difference is the '7CC11' suffix indicates a specific ordering code for railway application designation and combined terminals; mechanically it fits the same DIN-rail footprint and wiring pattern, so a direct swap without rewiring is expected.
MPN
5SY4304-7CC11