Shop Legrand DX3 MCB 1 Pole 20A Curve B 10kA Circuit Breaker | 408873 In Iraq Best Prices
Single-pole thermal magnetic circuit breaker with 20A rated current, B-curve release characteristic, and 10kA breaking capacity. Features IP20 finger-safe protection, DIN rail mounting, and accepts DX3 auxiliaries for comprehensive electrical protection.
The Legrand DX3 MCB (Miniature Circuit Breaker) is a thermal magnetic circuit-breaker designed to protect wiring installations against overloads and short-circuits. With a rated current of 20A and B-curve release characteristic, this single-pole breaker provides reliable protection with a 10kA breaking capacity according to IEC 60898-1 standard for household installations. The device features IP20 finger-safe protection, ensuring that solid bodies larger than 12.5mm cannot penetrate the device, making it safe for residential and small commercial applications.
This circuit breaker is engineered with energy limitation class 3 according to IEC 60898-1 standard, providing maximum limitation of let-through energy during short-circuit events. The DX3 can be supplied via copper cable, prong busbar (top or bottom side), fork busbar (bottom side), or Legrand HX3 plug busbar (top side), offering flexible installation options. It includes two DIN rail clamps on both top and bottom sides, allowing independent removal even when the prong busbar is still in place.
The product is equipped with a label holder for clear circuit identification and features On/Off indication printed on the handle with red and green backgrounds for easy status identification. It accepts Legrand DX3 auxiliaries, RCD add-on modules, and various accessories, making it highly adaptable to different installation requirements. Operating across 50-60 Hz frequency range with a rated voltage of 230V AC and insulation voltage of 500V, this breaker is compliant with environmental restrictions and has been designed with environmental consciousness in mind.
Key Features
- 10kA breaking capacity according to IEC 60898-1 standard for household installations
- B-curve release characteristic with tripping threshold between 60A and 100A (3 In to 5 In)
- IP20 finger-safe protection against solid bodies larger than 12.5mm
- Energy limitation class 3 for maximum let-through energy control during short-circuits
- Compatible with Legrand DX3 auxiliaries, RCD add-on modules and accessories
- Flexible power supply options: copper cable, prong busbar, fork busbar, or HX3 plug busbar
- DIN rail mounting with independent top and bottom clamps for easy removal
- Label holder and On/Off indication with color-coded handle (red/green)
- Connectable to aluminum cables with optional terminal accessory
- Environmentally conscious design with halogen-free materials
Technical Specifications
| Specification |
Value |
| Product Type | Miniature Circuit Breaker (MCB) |
| Rated Current | 20A |
| Number of Poles | 1 pole |
| Release Characteristic | B-curve (3 In to 5 In) |
| Rated Voltage | 230V AC |
| Rated Insulation Voltage | 500V |
| Rated Impulse Withstand Voltage | 4 kV |
| Breaking Capacity (Icn) | 10 kA at 230V |
| Breaking Capacity (Icu) | 16 kA at 230V (IEC 60947-2) |
| Frequency | 50-60 Hz |
| Current Limiting Class | Class 3 |
| Degree of Protection | IP20 |
| Width (Modular Spacings) | 1 module |
| Width (mm) | 17.8 mm |
| Height (mm) | 94.8 mm |
| Depth (mm) | 77.8 mm |
| Built-in Depth | 44 mm |
| Connectable Conductor Cross Section (Multi-wired) | 1.5-25 mm² |
| Connectable Conductor Cross Section (Solid-core) | 1.5-35 mm² |
| Connection Type | Screwed terminal |
| Operating Temperature Range | -25 to 70°C |
| Storage Temperature Range | -40 to 70°C |
| Mounting Method | DIN rail |
| Colour | Grey (RAL 7035) |
| Degree of Impact Strength | IK02 |
| Pollution Degree | 2 |
| Supply Direction | Top or bottom |
| Halogen Free | Yes |
| Additional Equipment Possible | Yes |
| Label Space | Yes |
| Concurrent Switching of Neutral | No |
| Flush-mounted Installation | Yes |
| Reference Number | 408873 |
| EAN Code | 3245064088732 |
| Carbon Footprint (Manufacturing) | 0.904 kg CO2 eq. |
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