| Product Type | Thermal Magnetic Circuit Breaker (MCB) |
| Brand | Legrand |
| Model Series | DX³ |
| Reference Number | 409204 |
| EAN Code | 3245064092043 |
| Number of Poles | 2 poles |
| Rated Current | 25 A |
| Release Characteristic | C curve (5-10 In) |
| Rated Voltage | 400 V AC |
| Rated Insulation Voltage (Ui) | 500 V |
| Rated Impulse Withstand Voltage (Uimp) | 4 kV |
| Breaking Capacity at 230V (Icn) | 16 kA |
| Breaking Capacity at 400V (Icn) | 10 kA |
| Ultimate Breaking Capacity at 230V (Icu) | 32 kA |
| Ultimate Breaking Capacity at 400V (Icu) | 16 kA |
| Current Limiting Class | Class 3 |
| Frequency | 50-60 Hz |
| Degree of Protection (IP) | IP20 |
| Degree of Impact Strength (IK) | IK02 |
| Width in Modular Spacings | 2 modules |
| Width | 35.4 mm |
| Height | 94.8 mm |
| Depth | 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 |
| Supply Direction | By the top or bottom |
| Mounting Method | DIN rail |
| Color | Grey |
| RAL Number | RAL 7035 |
| Pollution Degree | 2 |
| Operating Temperature Range | -25 to +70 °C |
| Storage Temperature Range | -40 to +70 °C |
| Halogen Free | Yes |
| Flush-mounted Installation | Yes |
| Concurrently Switching Neutral Conductor | No |
| Additional Equipment Possible | Yes (DX³ auxiliaries and RCD add-on modules) |
| Explosion-proof | No |
| Label Space | Yes |
| Carbon Footprint (Manufacturing) | 1.854 kg CO₂ eq. |
| Applicable Standards | IEC 60898-1, EN 60898-1, IEC 60947-2 |