Thermal magnetic 2-pole circuit-breaker with 32A rating and D-curve protection, offering 10kA breaking capacity and IP20 safety for residential and small commercial installations.
The Legrand DX3 MCB 2P 32A Curve D is a thermal magnetic circuit-breaker designed to provide comprehensive protection for wiring installations against overloads and short-circuits. With a rated current of 32A and D-curve release characteristic, this device offers breaking capacities of 10kA at 400V and 16kA at 230V, making it suitable for residential and small commercial applications. The circuit-breaker features IP20 finger-safe protection, ensuring safety in installation environments, and is mounted on DIN rails for easy integration into distribution panels.
This MCB is engineered with advanced thermal-magnetic technology that responds quickly to fault conditions, providing reliable circuit protection. The device can be supplied via copper cable, prong busbar, fork busbar, or Legrand HX3 plug busbar from either the top or bottom, offering flexible installation options. With a built-in depth of 44mm and dimensions of 35.4mm width, 94.8mm height, and 77.8mm depth, it occupies minimal space in switchboards while maintaining optimal performance.
The DX3 circuit-breaker is compatible with Legrand DX3 auxiliaries, RCD add-on modules, and various accessories, allowing for system expansion and customization. It operates reliably in ambient temperatures ranging from -25°C to 70°C and features a halogen-free design, demonstrating environmental responsibility. The device includes a label holder for circuit identification and clear on/off indication on the handle with red and green backgrounds for easy status recognition. With its robust construction and compliance with IEC 60898-1 standards, this circuit-breaker ensures long-term reliability and safety in electrical installations.
Key Features
- Thermal-magnetic protection against overloads and short-circuits with D-curve release characteristic
- Breaking capacity of 10kA at 400V and 16kA at 230V per IEC 60898-1 standard
- IP20 finger-safe protection preventing contact with live parts larger than 12.5mm
- DIN rail mounting with dual clamps for independent removal without disturbing busbar supply
- Compatible with Legrand DX3 auxiliaries, RCD add-on modules and system accessories
- Clear on/off indication with red and green background markings on operating handle
- Integrated label holder for circuit identification and organization
- Halogen-free environmentally responsible design
- Flexible supply options via copper cable, prong busbar, fork busbar or HX3 plug busbar
- Wide operating temperature range from -25°C to 70°C
Technical Specifications
| Specification |
Value |
| Product Type | Thermal Magnetic Circuit Breaker (MCB) |
| Number of Poles | 2 poles |
| Rated Current | 32 Amperes |
| Release Characteristic | D-curve (10-14 In) |
| Rated Voltage | 400V AC |
| Rated Insulation Voltage | 500V |
| Rated Impulse Withstand Voltage | 4 kV |
| Breaking Capacity at 400V | 10 kA (Icn) |
| Breaking Capacity at 230V | 16 kA (Icn) |
| Ultimate Breaking Capacity at 400V | 16 kA (Icu) |
| Ultimate Breaking Capacity at 230V | 32 kA (Icu) |
| Frequency | 50-60 Hz |
| Degree of Protection | IP20 (finger-safe) |
| Degree of Impact Strength | IK02 |
| Width in Modular Spacings | 2 modules |
| Width | 35.4 mm |
| Height | 94.8 mm |
| Built-in Depth | 44 mm |
| Total Depth | 77.8 mm |
| Connectable Conductor Cross-section (Solid) | 1.5-35 mm² |
| Connectable Conductor Cross-section (Multi-wired) | 1.5-25 mm² |
| Connection Type | Screwed terminal |
| Mounting Method | DIN rail |
| Supply Direction | Top or bottom |
| Ambient Temperature (Operating) | -25°C to 70°C |
| Storage Temperature | -40°C to 70°C |
| Pollution Degree | 2 |
| Colour | Grey (RAL 7035) |
| Halogen Free | Yes |
| Flush-mounted Installation | Yes |
| Additional Equipment Possible | Yes |
| Concurrently Switching Neutral | No |
| Explosion-proof | No |
| Reference Number | 409454 |
| EAN Code | 3414970434272 |
| Carbon Footprint (Manufacturing) | 1.983 kg CO₂ eq. |
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