Thermal magnetic circuit-breaker with 2A D-curve, 10kA breaking capacity, IP20 protection, and DIN-rail mounting for household and small commercial electrical installations.
The Legrand DX3 MCB 1P 2A D-Curve is a thermal magnetic circuit-breaker designed to protect wiring installations against overloads and short-circuits. With a rated current of 2A and D-curve release characteristic, this device provides reliable protection with a 10kA breaking capacity at 230V. The circuit-breaker features IP20 protection rating, making it safe for household and small commercial applications. It is equipped with DIN-rail mounting capability, allowing for flexible installation in electrical panels. The device can be supplied via copper cable, prong busbar, fork busbar, or Legrand HX3 plug busbar, providing versatile connection options.
This MCB is constructed with high-quality materials and complies with IEC 60898-1 standard for household installations. The tripping threshold in case of short-circuit is between 20A and 28A (D curve between 10 In and 14 In), ensuring optimal protection. The device features a label holder for clear circuit identification and ON/OFF indication printed on the handle with red and green backgrounds for easy status identification. Built with a depth of 44mm and width of 17.8mm, it occupies minimal space in electrical panels while maintaining robust construction.
The Legrand DX3 MCB is fingerproof with IP20 protection according to IEC/EN 60529 standard, protecting against solid bodies larger than 12.5mm. It can be equipped with Legrand DX3 auxiliaries, RCD add-on modules, and accessories for enhanced functionality. The device is halogen-free and designed in an environmentally conscious process, meeting substance-restriction requirements. With a rated insulation voltage of 500V and impulse withstand voltage of 4kV, this circuit-breaker ensures reliable performance in demanding electrical environments.
Key Features
- 10kA breaking capacity according to IEC 60898-1 standard for reliable short-circuit protection
- D-curve release characteristic with tripping threshold between 20A and 28A for optimal overload protection
- IP20 protection rating fingerproof against solid bodies larger than 12.5mm per IEC/EN 60529 standard
- DIN-rail mounting with dual clamps enabling independent removal while busbar remains in place
- Compatible with multiple supply options including copper cable, prong busbar, fork busbar, and Legrand HX3 plug busbar
- Clear circuit identification with label holder and ON/OFF indication on handle with color-coded backgrounds
- Halogen-free construction designed with environmentally conscious manufacturing process
- Compatible with Legrand DX3 auxiliaries, RCD add-on modules, and various accessories
Technical Specifications
| Specification |
Value |
| Product Model | DX3 MCB 1P 2A D-Curve |
| Reference Number | 409425 |
| EAN Code | 3414970433954 |
| Rated Current | 2 A |
| Rated Voltage | 230 V AC |
| Rated Insulation Voltage | 500 V |
| Rated Impulse Withstand Voltage | 4 kV |
| Breaking Capacity (Icn) | 10 kA at 230V per IEC 60898-1 |
| Breaking Capacity (Icu) | 16 kA at 230V per IEC 60947-2 |
| Release Characteristic | D-Curve |
| Short-Circuit Tripping Threshold | 20A to 28A (D curve between 10 In and 14 In) |
| Number of Poles (Total) | 1 |
| Number of Protected Poles | 1 |
| Frequency Range | 50-60 Hz |
| Voltage Type | AC |
| Degree of Protection | IP20 (Fingerproof against solid bodies larger than 12.5mm) |
| Degree of Impact Strength | IK02 |
| Built-in Depth | 44 mm |
| Width | 17.8 mm |
| Height | 94.8 mm |
| Overall Depth | 77.8 mm |
| Width in Modular Spacings | 1 module |
| Connectable Conductor Cross Section (Multi-wired) | 1.5-25 mm² |
| Connectable Conductor Cross Section (Solid-core) | 1.5-35 mm² |
| Connection Type | Screwed Terminal |
| Electric Supplying Direction | By the top or bottom |
| Mounting Method | DIN Rail |
| Flush-mounted Installation | Yes |
| Concurrently Switching Neutral Conductor | No |
| Pollution Degree | 2 |
| Additional Equipment Possible | Yes (DX3 auxiliaries, RCD add-on modules, accessories) |
| Operating Temperature Range | -25°C to +70°C |
| Storage Temperature Range | -40°C to +70°C |
| Colour | Grey |
| RAL Number | 7035 |
| Halogen Free | Yes |
| Explosion-proof | No |
| Label Space/Information Surface | Yes |
| Carbon Footprint (Manufacturing Phase) | 0.830 kg CO2 eq. |
| Compliance Standards | IEC 60898-1, IEC 60947-2, IEC/EN 60529 |
| Regulatory Compliance | RoHS Directive, REACH Declaration |
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