3-pole thermal magnetic circuit breaker with 6A rating, B curve, 6kA/10kA breaking capacity, IP20 protection, and DIN rail mounting for residential and commercial electrical installations.
The Legrand DX3 MCB 6000A is a thermal magnetic circuit breaker designed to protect wiring installations against overloads and short-circuits. With a 6kA/10kA breaking capacity and B curve characteristic, this 3-pole device operates at 400V~ with a rated current of 6A. The breaker features IP20 safety rating and is mounted on DIN rail, making it ideal for residential and small commercial applications. It can be supplied by copper cable, prong busbar, fork busbar, or Legrand HX3 plug busbar, offering flexible installation options.
This circuit breaker is equipped with advanced protection features including fingerproof design (protected against solid bodies larger than 12.5mm) and maximum energy limitation class 3 according to IEC 60898-1 standard. The device includes a label holder for clear circuit identification and on/off indication printed on the handle with red and green backgrounds for easy status recognition. It can be equipped with Legrand DX3 auxiliaries, RCD add-on modules, and accessories, and can be connected to aluminum cable with terminal accessory.
The MCB DX3 complies with all substance-restriction requirements and has been designed in an environmentally conscious process. With dimensions of 53.1mm width, 94.8mm height, and 77.8mm depth, it occupies 3 modular spacings. The device operates reliably in ambient temperatures ranging from -25°C to 70°C and features halogen-free construction, making it suitable for modern electrical installations that prioritize safety and environmental responsibility.
Key Features
- Thermal magnetic protection against overloads and short-circuits with B curve tripping characteristic between 3In and 5In
- 6kA/10kA rated short-circuit breaking capacity according to IEC 60898-1 and IEC 60947-2 standards
- IP20 fingerproof protection against solid bodies larger than 12.5mm with energy limitation class 3
- Flexible supply options: copper cable, prong busbar, fork busbar, or Legrand HX3 plug busbar
- Compatible with Legrand DX3 auxiliaries, RCD add-on modules, and aluminum cable connections
- DIN rail mounting with independent removal capability via dual clamps
- Clear circuit identification with label holder and on/off status indication
- Halogen-free construction and environmentally conscious design
- Operates reliably in ambient temperatures from -25°C to 70°C
Technical Specifications
| Specification |
Value |
| Product Type | Thermal Magnetic Circuit Breaker (MCB) |
| Brand | Legrand |
| Series | DX3 |
| Reference Number | 407558 |
| EAN Code | 3245064075589 |
| Number of Poles | 3 poles (3P) |
| Rated Current | 6 A |
| Release Characteristic | B curve (tripping threshold 18A-30A) |
| Rated Voltage | 400 V AC |
| Rated Insulation Voltage | 500 V |
| Rated Impulse Withstand Voltage | 4 kV |
| Breaking Capacity at 400V | 6 kA (Icn) / 10 kA (Icu) |
| Breaking Capacity at 230V | 25 kA (Icu) |
| Current Limiting Class | 3 |
| Degree of Protection | IP20 (fingerproof) |
| Impact Strength | IK02 |
| Mounting Method | DIN rail |
| Modular Width | 3 spaces |
| Width | 53.1 mm |
| Height | 94.8 mm |
| Depth | 77.8 mm (built-in depth 44 mm) |
| Connection Type | Screwed terminal |
| Connectable Conductor Cross Section (Solid) | 1.5-35 mm² |
| Connectable Conductor Cross Section (Multi-wired) | 1.5-25 mm² |
| Supply Direction | Top or bottom |
| Frequency | 50-60 Hz |
| Operating Temperature Range | -25°C to +70°C |
| Storage Temperature Range | -40°C to +70°C |
| Pollution Degree | 2 |
| Flush-mounted Installation | Yes |
| Neutral Conductor Switching | No |
| Additional Equipment Possible | Yes (DX3 auxiliaries, RCD modules) |
| Colour | Grey |
| RAL Number | 7035 |
| Halogen Free | Yes |
| Explosion-proof | No |
| Label Space | Yes |
| Carbon Footprint (Manufacturing) | 2.822 kg CO2 eq. |
| Standards Compliance | IEC 60898-1, IEC 60947-2, IEC/EN 60529, RoHS, REACH |
Order Legrand DX3 MCB 3P 6A B Curve Circuit Breaker | 407558 at wholesale prices for companies and factories in Iraq and Middle East, get the best deals on bulk purchases, contact us today.
