| Product Type | Thermal Magnetic Circuit-Breaker (MCB) |
| Brand | Legrand |
| Model Series | DX³ (DX3) |
| Reference Number | 407623 |
| EAN Code | 3245064076234 |
| Number of Poles | 4 poles (4P) |
| Protected Poles | 4 |
| Rated Current | 13 A |
| Rated Voltage | 400 V AC |
| Rated Insulation Voltage | 500 V |
| Rated Impulse Withstand Voltage | 4 kV |
| Voltage Type | AC (Alternating Current) |
| Release Characteristic | B Curve |
| Short-Circuit Tripping Threshold | 39A to 65A (B curve between 3In and 5In) |
| Breaking Capacity (Icn) IEC 60898-1 | 6 kA at 400V |
| Breaking Capacity (Icu) IEC 60947-2 at 230V | 25 kA |
| Breaking Capacity (Icu) IEC 60947-2 at 400V | 10 kA |
| Current Limiting Class | Class 3 |
| Frequency Range | 50-60 Hz |
| Degree of Protection | IP20 (Fingerproof) |
| Degree of Impact Strength | IK02 |
| Pollution Degree | 2 |
| Width (Modular Spacings) | 4 modules |
| Width Dimension | 70.8 mm |
| Height Dimension | 94.8 mm |
| Depth Dimension | 77.8 mm |
| Built-in Depth | 44 mm |
| Connection Type | Screwed Terminal |
| Connectable Conductor Cross-Section (Multi-wired) | 1.5-25 mm² |
| Connectable Conductor Cross-Section (Solid-core) | 1.5-35 mm² |
| Electric Supplying Direction | By top or bottom |
| Supply Methods | Copper cable, prong busbar, fork busbar, or Legrand HX3 plug busbar |
| Mounting Method | DIN rail |
| DIN Rail Clamps | Dual clamps (top and bottom) for independent removal |
| Concurrent Switching Neutral | Yes |
| Flush-mounted Installation | Yes |
| Ambient Temperature Range | -25°C to 70°C |
| Storage Temperature Range | -40°C to 70°C |
| Colour | Grey |
| RAL Number | 7035 |
| Halogen Free | Yes |
| Additional Equipment | Compatible with DX³ auxiliaries and RCD add-on modules |
| Label Space | Yes - includes label holder |
| Explosion-proof | No |
| Carbon Footprint (Manufacturing Phase) | 3.419 kg CO₂ eq. |
| Standards Compliance | IEC 60898-1, IEC 60947-2, IEC/EN 60529, RoHS Directive, REACH |
| Warranty | Legrand standard product warranty applies |