2-pole 20A C-curve thermal magnetic circuit-breaker with 10kA breaking capacity at 400V, IP20 finger-safe design, DIN-rail mounting, and current limiting class 3 protection for residential and commercial installations.
The Legrand DX3 MCB 10000A is a thermal magnetic circuit-breaker designed to protect wiring installations against overloads and short-circuits. With a breaking capacity of 16kA at 230V and 10kA at 400V, this 2-pole 20A C-curve breaker provides reliable protection for residential and small commercial electrical systems. The device features IP20 finger-safe design, ensuring safety in installation environments, and is mounted on DIN-rail for convenient installation and removal.
This circuit-breaker incorporates advanced protection features including current limiting class 3 according to IEC 60898-1 standard, which minimizes let-through energy during fault conditions. The C-curve release characteristic ensures tripping between 100A and 200A (5In to 10In), making it ideal for circuits with moderate inrush currents. The breaker can be supplied by copper cable, prong busbar, fork busbar, or Legrand HX3 plug busbar, offering flexible installation options.
The DX3 MCB is equipped with independent DIN rail clamps on both top and bottom sides, allowing removal without disturbing the prong busbar supply. It includes a label holder for clear circuit identification and has On/Off indication printed on the handle with red and green backgrounds for easy status identification. The device is halogen-free and complies with substance-restriction requirements, demonstrating Legrand's commitment to environmental responsibility.
Key Features
- Breaking capacity of 16kA at 230V and 10kA at 400V according to IEC 60898-1 standard
- C-curve release characteristic with tripping threshold between 100A and 200A (5In to 10In)
- IP20 finger-safe protection against solid bodies larger than 12.5mm
- Current limiting class 3 for maximum energy limitation during short-circuits
- Independent DIN rail clamps allowing removal without disturbing busbar supply
- Compatible with Legrand DX3 auxiliaries, RCD add-on modules and accessories
- Flexible supply options: copper cable, prong busbar, fork busbar, or HX3 plug busbar
- Clear circuit identification with label holder and On/Off indication on handle
- Halogen-free and environmentally conscious design
- Rated voltage 400V with impulse withstand voltage of 4kV
Technical Specifications
| Specification |
Value |
| Product Type | Thermal Magnetic Circuit-Breaker |
| Reference Number | 409203 |
| EAN Code | 3245064092036 |
| Number of Poles | 2 |
| Rated Current | 20 A |
| Release Characteristic | C-curve |
| Rated Voltage | 400 V |
| Rated Insulation Voltage | 500 V |
| Impulse Withstand Voltage | 4 kV |
| Breaking Capacity at 230V | 16 kA |
| Breaking Capacity at 400V | 10 kA |
| Ultimate Breaking Capacity (Icu) at 230V | 32 kA |
| Ultimate Breaking Capacity (Icu) at 400V | 16 kA |
| Current Limiting Class | 3 |
| Voltage Type | AC |
| Frequency Range | 50-60 Hz |
| Degree of Protection | IP20 |
| Width in Modular Spacings | 2 |
| Built-in Depth | 44 mm |
| Width | 35.4 mm |
| Height | 94.8 mm |
| Depth | 77.8 mm |
| Degree of Impact Strength | IK02 |
| Connectable Conductor Cross Section (Multi-wired) | 1.5-25 mm² |
| Connectable Conductor Cross Section (Solid-core) | 1.5-35 mm² |
| Connection Type | Screwed Terminal |
| Mounting Method | DIN Rail |
| Supply Direction | By the top or bottom |
| Color | Grey |
| RAL Number | 7035 |
| Operating Temperature Range | -25 to 70°C |
| Storage Temperature Range | -40 to 70°C |
| Pollution Degree | 2 |
| Concurrently Switching Neutral Conductor | No |
| Flush-mounted Installation | Yes |
| Additional Equipment Possible | Yes |
| Halogen Free | Yes |
| Explosion-proof | No |
| Label Space/Information Surface | Yes |
| Carbon Footprint (Manufacturing Phase) | 1.844 kg CO₂ eq. |
Order Legrand DX3 MCB 2P 20A Curve C Circuit Breaker | 409203 at wholesale prices for companies and factories in Iraq and Middle East, get the best deals on bulk purchases, contact us today.
