| Product Type | Miniature Circuit Breaker (MCB) - Thermal Magnetic |
| Number of Poles | 4 poles (4P) |
| Rated Current | 20 Amperes (A) |
| Release Characteristic | C curve (5-10 In tripping range) |
| Rated Voltage | 400 Volts (V) AC |
| Rated Insulation Voltage | 500 Volts (Ui) |
| Rated Impulse Withstand Voltage | 4 kV (Uimp) |
| 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 (maximum energy limitation) |
| Degree of Protection (IP) | IP20 (fingerproof against solid bodies > 12.5mm) |
| Degree of Impact Strength | IK02 |
| Built-in Depth | 44 mm |
| Width | 70.8 mm |
| Height | 94.8 mm |
| Overall Depth | 77.8 mm |
| Modular Width | 4 modular spacings on DIN rail |
| Connectable Conductor Cross-Section (Multi-wired) | 1.5-25 mm² |
| Connectable Conductor Cross-Section (Solid-core) | 1.5-35 mm² |
| Connection Type | Screwed terminal |
| Supply Direction | By the top or bottom |
| Mounting Method | DIN rail with independent top and bottom clamps |
| Concurrent Switching | Yes - neutral conductor switched concurrently |
| Operating Temperature Range | -25°C to +70°C |
| Storage Temperature Range | -40°C to +70°C |
| Pollution Degree | 2 |
| Colour | Grey (RAL 7035) |
| Halogen Free | Yes |
| Additional Equipment Possible | Yes - compatible with Legrand DX3 auxiliaries, RCD add-on modules, and accessories |
| Flush-mounted Installation | Yes |
| Explosion-proof | No |
| Label Space | Yes - label holder included |
| Reference Number | 409337 |
| EAN Code | 3245064093378 |
| Applicable Standards | IEC 60898-1, IEC/EN 60529, IEC 60947-2 |
| Carbon Footprint (Manufacturing) | 3.704 kg CO₂ eq. |