Thermal magnetic 4-pole 32A circuit breaker with 6000A breaking capacity, C-curve protection, IP20 finger-safe design, and full Legrand accessory compatibility for residential and commercial installations.
The Legrand DX3 MCB 6000A 4-pole 32A curve C circuit breaker is a thermal magnetic protection device designed to safeguard wiring installations against overloads and short circuits. This reliable electrical component features a 400V AC rated voltage with a 6000A breaking capacity according to IEC 60898-1 standards, making it ideal for household and small commercial installations. The device incorporates advanced current limiting technology (class 3) to minimize let-through energy and ensure maximum protection for connected equipment.
This circuit breaker is engineered with multiple supply connection options, including copper cable, prong busbar (top or bottom side), fork busbar (bottom side), or Legrand HX3 plug busbar (top side) connectivity. The IP20 finger-safe design provides protection against solid bodies larger than 12.5mm, complying with IEC/EN 60529 standards. With a C-curve tripping characteristic between 5In and 10In, this MCB offers optimal protection for standard residential and commercial circuits requiring moderate overload sensitivity.
The DX3 series is fully compatible with Legrand auxiliaries, RCD add-on modules, and various accessories, allowing for flexible system expansion and customization. The product features an intuitive label holder for circuit identification, on/off indication on the handle with red and green backgrounds, and independent DIN rail mounting clamps. Built to environmentally conscious standards and free from halogen content, this circuit breaker meets all regulatory requirements including RoHS and REACH compliance.
Key Features
- 6000A breaking capacity with 10kA at 400V according to IEC 60898-1 standard
- C-curve tripping characteristic between 5In and 10In for moderate overload protection
- IP20 finger-safe design protecting against solid bodies larger than 12.5mm
- Current limiting class 3 for maximum let-through energy limitation
- Compatible with Legrand DX3 auxiliaries, RCD add-on modules and accessories
- Multiple supply connection options: copper cable, prong busbar, fork busbar, or HX3 plug busbar
- Independent DIN rail mounting with top and bottom clamps for easy removal
- Label holder with clear ON/OFF indication using red and green backgrounds
- Concurrently switching neutral conductor for enhanced safety
- Halogen-free and environmentally conscious design with RoHS and REACH compliance
Technical Specifications
| Specification |
Value |
| Product Type | Thermal Magnetic Circuit Breaker (MCB) |
| Brand | Legrand |
| Series | DX3 |
| Reference Number | 407931 |
| EAN Code | 3245064079310 |
| Number of Poles | 4 Poles (4P) |
| Rated Current | 32 Amperes (A) |
| Rated Voltage | 400V AC |
| Rated Insulation Voltage | 500V |
| Rated Impulse Withstand Voltage | 4 kV |
| Breaking Capacity (Icn) | 6000A at 400V according to EN 60898 |
| Breaking Capacity (Icu) | 10 kA at 400V according to IEC 60947-2 |
| Breaking Capacity at 230V | 25 kA according to IEC 60947-2 |
| Release Characteristic | C Curve |
| Tripping Threshold | Between 160A and 320A (C curve between 5In and 10In) |
| Current Limiting Class | Class 3 |
| Frequency | 50-60 Hz |
| Degree of Protection | IP20 (Finger-safe) |
| Degree of Impact Strength | IK02 |
| Pollution Degree | 2 |
| Built-in Depth | 44 mm |
| Width | 70.8 mm |
| Height | 94.8 mm |
| Total Depth | 77.8 mm |
| Width in Modular Spacings | 4 modules |
| 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 |
| Mounting Method | DIN Rail |
| Flush-mounted Installation | Yes |
| Concurrently Switching Neutral Conductor | Yes |
| Additional Equipment Possible | Yes |
| 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) | 3.567 kg CO₂ eq. |
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