Thermal magnetic 4-pole circuit-breaker with 20A rated current, B curve, 10kA breaking capacity at 400V, IP20 protection, and full isolation for residential and commercial installations.
The Legrand DX3 MCB 6000A is a thermal magnetic circuit-breaker designed to protect wiring installations against overloads and short-circuits. This 4-pole device features a 20A rated current with B curve characteristics and offers a breaking capacity of 10kA at 400V~. The breaker incorporates advanced safety features including IP20 protection against solid bodies larger than 12.5mm, energy limitation class 3 according to IEC 60898-1 standard, and full isolation capability. The device can be supplied by copper cable, prong busbar (top or bottom side), fork busbar (bottom side), or Legrand HX3 plug busbar (top side), providing flexible installation options for various electrical configurations.
This MCB is equipped with two DIN rail clamps positioned on top and bottom sides, allowing independent removal while the prong busbar remains in place. The product features a convenient label holder for clear circuit identification and ON/OFF indication printed on the handle with red and green backgrounds for easy status recognition. The device is compatible with Legrand DX3 auxiliaries, RCD add-on modules, and various accessories, making it highly versatile for residential and small commercial applications.
The DX3 MCB 6000A complies with all substance-restriction requirements and has been designed following environmentally conscious manufacturing processes. With a breaking capacity of 6000A according to IEC 60898-1 standard for household installations and a tripping threshold for short-circuits between 60A and 100A (B curve between 3In and 5In), this circuit-breaker ensures reliable protection and compliance with modern electrical safety standards. The product is halogen-free and suitable for ambient temperatures ranging from -25°C to 70°C during operation.
Key Features
- Thermal magnetic protection against overloads and short-circuits with B curve tripping characteristics
- 6000A breaking capacity per IEC 60898-1 standard for household installations with 10kA at 400V
- 4-pole configuration with 20A rated current and 400V rated voltage for comprehensive circuit protection
- IP20 degree of protection with fingerproof design against solid bodies larger than 12.5mm
- Energy limitation class 3 providing maximum let-through energy limitation for enhanced safety
- Flexible power supply options including copper cable, prong busbar, fork busbar, and HX3 plug busbar
- Independent DIN rail removal with top and bottom clamps allowing easy maintenance
- Compatible with Legrand DX3 auxiliaries, RCD add-on modules, and comprehensive accessory range
- Clear circuit identification with label holder and ON/OFF status indication on handle
- Halogen-free construction with environmentally conscious design and RoHS compliance
Technical Specifications
| Specification |
Value |
| Product Type | Thermal Magnetic Circuit-Breaker (MCB) |
| Manufacturer | Legrand |
| Model Series | DX3 |
| Reference Number | 407625 |
| EAN Code | 3245064076258 |
| Number of Poles | 4 poles (4P) |
| Rated Current | 20 A |
| Rated Voltage | 400 V AC |
| Rated Insulation Voltage | 500 V |
| Rated Impulse Withstand Voltage | 4 kV |
| Release Characteristic | B curve (3In to 5In) |
| Tripping Threshold (Short-Circuit) | 60A to 100A |
| Breaking Capacity (Icn) | 6 kA at 400V according to IEC 60898-1 |
| Breaking Capacity (Icu) | 10 kA at 400V according to IEC 60947-2 |
| Breaking Capacity (Icu) | 25 kA at 230V according to IEC 60947-2 |
| Frequency Range | 50-60 Hz |
| Current Limiting Class | Class 3 |
| Degree of Protection | IP20 (Fingerproof) |
| Degree of Impact Strength | IK02 |
| Pollution Degree | 2 |
| Width (Modular Spacings) | 4 modules |
| Width | 70.8 mm |
| Height | 94.8 mm |
| Depth | 77.8 mm |
| Built-in Depth | 44 mm |
| Color | Grey (RAL 7035) |
| Connection Type | Screwed terminal |
| Connectable Conductor Cross-Section (Multi-wired) | 1.5-25 mm² |
| Connectable Conductor Cross-Section (Solid-core) | 1.5-35 mm² |
| Mounting Method | DIN rail mounting |
| Electric Supplying Direction | Top or bottom |
| Flush-mounted Installation | Yes |
| Concurrently Switching Neutral Conductor | Yes |
| Operating Temperature Range | -25°C to +70°C |
| Storage Temperature Range | -40°C to +70°C |
| Halogen Free | Yes |
| Explosion-proof | No |
| Additional Equipment Possible | Yes (RCD add-on modules and auxiliaries) |
| Label Space/Information Surface | Yes |
| Carbon Footprint (Manufacturing Phase A1-A3) | 3.477 kg CO2 eq. |
| Standards Compliance | IEC 60898-1, IEC 60947-2, IEC/EN 60529, RoHS Directive |
Order Legrand DX3 MCB 4P 20A Curve B Circuit Breaker | 407625 at wholesale prices for companies and factories in Iraq and Middle East, get the best deals on bulk purchases, contact us today.
