| Product Type | Thermal Magnetic Circuit Breaker (MCB) |
| Brand | Legrand |
| Series | DX3 |
| Reference Number | 408989 |
| EAN Code | 3245064089890 |
| Number of Poles | 3 (Three Pole) |
| Rated Current | 10 A |
| Release Characteristic | B Curve |
| Rated Voltage | 400 V AC |
| Rated Insulation Voltage | 500 V |
| Rated Impulse Withstand Voltage | 4 kV |
| Breaking Capacity at 400V | 10 kA (Icn according to EN 60898) |
| Breaking Capacity at 230V | 16 kA (Icn according to EN 60898) |
| Ultimate Breaking Capacity at 400V | 16 kA (Icu according to IEC 60947-2) |
| Ultimate Breaking Capacity at 230V | 32 kA (Icu according to IEC 60947-2) |
| Short-Circuit Tripping Threshold | Between 30A and 50A (B curve: 3-5 In) |
| Current Limiting Class | Class 3 |
| Frequency | 50-60 Hz |
| Degree of Protection (IP) | IP20 (Finger-safe) |
| Built-in Depth | 44 mm |
| Width | 53.1 mm |
| Height | 94.8 mm |
| Total Depth | 77.8 mm |
| Width in Modular Spacings | 3 modules |
| Degree of Impact Strength | IK02 |
| Mounting Method | DIN Rail |
| Connection Type | Screwed Terminal |
| Supply Direction | Top or Bottom |
| Connectable Conductor Cross Section (Multi-wired) | 1.5-25 mm² |
| Connectable Conductor Cross Section (Solid-core) | 1.5-35 mm² |
| Ambient Temperature Operating Range | -25°C to +70°C |
| Storage Temperature Range | -40°C to +70°C |
| Pollution Degree | 2 |
| Colour | Grey |
| RAL Number | 7035 |
| Halogen Free | Yes |
| Concurrently Switching Neutral | No |
| Flush-mounted Installation | Yes |
| Additional Equipment Possible | Yes |
| Explosion-proof | No |
| Label Space/Information Surface | Yes |
| Carbon Footprint (Manufacturing Phase) | 2.924 kg CO₂ eq. |
| Compliance Standards | IEC 60898-1, IEC 60947-2, IEC/EN 60529, RoHS, REACH |