Shop Legrand DX3 MCB 1P 4A B-Curve 6kA Circuit Breaker | 407428 In Iraq Best Prices
Single-pole thermal magnetic circuit-breaker with 4A B-curve rating, 6kA breaking capacity, IP20 fingerproof protection, and DIN rail installation for reliable electrical system protection
The Legrand DX3 MCB 1P 4A B-Curve is a thermal magnetic circuit-breaker designed to protect wiring installations against overloads and short-circuits. With a 6kA breaking capacity and B-curve tripping characteristic between 3In and 5In, this device provides reliable protection for residential and small commercial electrical systems. The circuit-breaker features IP20 fingerproof safety, clear circuit identification through label holders, and easy DIN rail installation with independent removal capability. It is equipped with two DIN rail clamps positioned on both top and bottom sides, allowing safe removal without affecting the prong busbar supply.
This MCB is manufactured by Legrand under the DX3 range and complies with IEC 60898-1 standard for household installations. The device offers energy limitation class 3 according to IEC 60898-1, ensuring maximum protection against fault currents. It can be supplied through multiple connection methods including copper cable, prong busbar (top or bottom side), fork busbar (bottom side), or Legrand HX3 plug busbar (top side). The grey-colored device (RAL 7035) operates across a frequency range of 50-60 Hz and maintains functionality in ambient temperatures from -25°C to 70°C.
The product features a rated voltage of 230V AC with a rated insulation voltage of 500V and impulse withstand voltage of 4kV. It is compatible with Legrand DX3 auxiliaries, RCD add-on modules, and various accessories. The device is halogen-free and has been designed in an environmentally conscious process, complying with substance-restriction requirements including RoHS and REACH regulations. Professional installation by a qualified electrician is recommended to ensure proper operation and safety compliance.
Key Features
- 6kA breaking capacity according to IEC 60898-1 standard for household installations
- B-curve tripping characteristic between 3In and 5In for optimal protection against overloads and short-circuits
- IP20 fingerproof safety protection against solid bodies larger than 12.5mm
- Independent DIN rail removal with dual clamps on top and bottom sides
- Clear circuit identification with label holder and ON/OFF indication on handle
- Energy limitation class 3 for maximum fault current control
- Compatible with Legrand DX3 auxiliaries and RCD add-on modules
- Multiple connection methods: copper cable, prong busbar, fork busbar, or HX3 plug busbar
- Halogen-free and environmentally conscious design
- Wide operating temperature range from -25°C to 70°C
Technical Specifications
| Specification |
Value |
| Product Type | Thermal Magnetic Circuit-Breaker (MCB) |
| Manufacturer | Legrand |
| Series | DX3 |
| Reference Number | 407428 |
| EAN Code | 3245064074285 |
| Number of Poles | 1 (Single Pole) |
| Rated Current | 4 A |
| Release Characteristic | B-curve (3In to 5In) |
| Rated Voltage | 230 V AC |
| Rated Insulation Voltage | 500 V |
| Impulse Withstand Voltage | 4 kV |
| Breaking Capacity (Icn) | 6 kA at 230V according to EN 60898 |
| Breaking Capacity (Icu) | 10 kA at 230V according to IEC 60947-2 |
| Frequency Range | 50-60 Hz |
| Current Limiting Class | 3 |
| Degree of Protection | IP20 (Fingerproof) |
| 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 |
| Supply Direction | Top or Bottom |
| Width | 17.8 mm (1 modular spacing) |
| Height | 94.8 mm |
| Depth | 77.8 mm (Built-in depth: 44 mm) |
| Color | Grey (RAL 7035) |
| Operating Temperature Range | -25°C to +70°C |
| Storage Temperature Range | -40°C to +70°C |
| Pollution Degree | 2 |
| Installation Method | DIN Rail Mounting |
| Mounting Features | Dual DIN rail clamps (top and bottom) for independent removal |
| Label Space | Yes - Label holder for circuit identification |
| Concurrent Neutral Switching | No |
| Additional Equipment | Yes - Compatible with DX3 auxiliaries and RCD add-on modules |
| Explosion-proof | No |
| Halogen-free | Yes |
| Carbon Footprint (Manufacturing) | 0.934 kg CO₂ eq. |
| Standards Compliance | IEC 60898-1, IEC/EN 60529, IEC 60947-2, RoHS, REACH |
Order Legrand DX3 MCB 1P 4A B-Curve 6kA Circuit Breaker | 407428 at wholesale prices for companies and factories in Iraq and Middle East, get the best deals on bulk purchases, contact us today.
