| Product Type | Thermal Magnetic Circuit-Breaker (MCB) |
| Brand | Legrand |
| Series | DX³ |
| Reference Number | 408997 |
| EAN Code | 3245064089975 |
| Number of Poles | 3 (3P) |
| Number of Protected Poles | 3 |
| Rated Current | 63 A |
| Release Characteristic | B-Curve |
| Tripping Threshold | Between 189A and 315A (B curve between 3 In and 5 In) |
| Rated Voltage | 400 V |
| Rated Insulation Voltage | 500 V |
| Rated Impulse Withstand Voltage | 4 kV |
| Breaking Capacity at 230V | 16 kA (Icn) according to EN 60898 |
| Breaking Capacity at 400V | 10 kA (Icn) according to EN 60898 |
| Ultimate Breaking Capacity at 230V | 32 kA (Icu) according to IEC 60947-2 |
| Ultimate Breaking Capacity at 400V | 16 kA (Icu) according to IEC 60947-2 |
| Frequency Range | 50-60 Hz |
| Current Limiting Class | Class 3 |
| Voltage Type | AC |
| Degree of Protection | IP20 (Fingerproof) |
| Degree of Impact Strength | IK02 |
| Pollution Degree | 2 |
| Width | 53.1 mm |
| Height | 94.8 mm |
| Depth | 77.8 mm |
| Built-in Depth | 44 mm |
| Width in Modular Spacings | 3 |
| Mounting Method | DIN Rail |
| Connection Type | Screwed Terminal |
| Electric Supplying Direction | By the top or bottom |
| Connectable Conductor Cross Section (Solid-core) | 1.5-35 mm² |
| Connectable Conductor Cross Section (Multi-wired) | 1.5-25 mm² |
| Colour | Grey |
| RAL Number | 7035 |
| Ambient Temperature Range | -25°C to +70°C |
| Storage Temperature Range | -40°C to +70°C |
| Flush-mounted Installation | Yes |
| Concurrently Switching Neutral Conductor | No |
| Additional Equipment Possible | Yes |
| Explosion-proof | No |
| Halogen Free | Yes |
| Label Space/Information Surface | Yes |
| Carbon Footprint (Manufacturing Phase) | 3.1 kg CO₂ eq. |
| Standards Compliance | IEC 60898-1, IEC 60947-2, IEC/EN 60529, EN 60898 |
| Supply Options | Copper cable, prong busbar, fork busbar, or Legrand HX3 plug busbar |
| Compatible Accessories | Legrand DX3 auxiliaries, RCD add-on modules |