Thermal-magnetic 2P 40A circuit breaker with C curve, 6kA/10kA breaking capacity, IP20 protection, and energy limitation class 3 for residential and commercial electrical installations.
The Legrand DX3 MCB 2P 40A Curve C is a thermal-magnetic circuit breaker designed to protect wiring installations against overloads and short circuits. With a 2-pole configuration and 40A rated current, this device features a C curve characteristic that provides optimal tripping between 5In and 10In (200A-400A range), making it ideal for residential and small commercial applications. The breaker offers a 6kA/10kA breaking capacity according to IEC 60898-1 standards and includes IP20 finger-safe protection, ensuring maximum safety in household installations.
This circuit breaker delivers energy limitation class 3, the highest level of limitation of let-through energy according to IEC 60898-1 standard. It can be supplied via copper cable, prong busbar, fork busbar, or Legrand HX3 plug busbar connections. The device features dual DIN rail clamps for independent removal while the prong busbar remains in place, and includes a label holder for clear circuit identification. On and off status indicators are printed on red and green backgrounds respectively for easy identification.
The DX3 MCB is fully compatible with Legrand DX3 auxiliaries, RCD add-on modules, and accessories. It features halogen-free construction and has been designed in an environmentally conscious process. The device complies with all substance-restriction requirements and delivers reliable performance across a wide temperature range from -25°C to 70°C during operation.
Key Features
- Thermal-magnetic protection against overloads and short circuits with C curve characteristic
- 6kA breaking capacity (IEC 60898-1) and 10kA at 400V (IEC 60947-2) for enhanced safety
- IP20 finger-safe protection suitable for household and commercial installations
- Energy limitation class 3 providing maximum let-through energy limitation
- DIN rail mounting with dual clamps for independent removal and flexible installation
- Compatible with Legrand DX3 auxiliaries, RCD add-on modules and accessories
- Label holder and on/off status indicators for clear circuit identification
- Halogen-free construction and environmentally conscious design
- Multi-connection options: copper cable, prong busbar, fork busbar, or HX3 plug busbar
Technical Specifications
| Specification |
Value |
| Product Type | Thermal-Magnetic Circuit Breaker (MCB) |
| Number of Poles | 2P (2 poles) |
| Rated Current | 40 A |
| Release Characteristic | C Curve (5In - 10In: 200A - 400A) |
| Rated Voltage | 400 V AC |
| Rated Insulation Voltage | 500 V |
| Impulse Withstand Voltage | 4 kV |
| Breaking Capacity (Icn) | 6 kA at 400V per IEC 60898-1 |
| Breaking Capacity (Icu) | 10 kA at 400V per IEC 60947-2 |
| Short-Circuit Breaking Capacity | 25 kA at 230V per IEC 60947-2 |
| Current Limiting Class | Class 3 (maximum energy limitation) |
| Degree of Protection | IP20 (finger-safe) |
| Impact Strength | IK02 |
| Frequency | 50-60 Hz |
| Operating Temperature Range | -25°C to +70°C |
| Storage Temperature Range | -40°C to +70°C |
| Width (Modular Spacing) | 2 spaces (35.4 mm) |
| Height | 94.8 mm |
| Depth | 77.8 mm / 44 mm built-in |
| Connectable Conductor Cross-Section (Solid) | 1.5 - 35 mm² |
| Connectable Conductor Cross-Section (Multi-wired) | 1.5 - 25 mm² |
| Connection Type | Screwed Terminal |
| Supply Direction | Top or Bottom |
| Mounting Method | DIN Rail (2 clamps) |
| Color | Grey (RAL 7035) |
| Material | Halogen-free |
| Pollution Degree | 2 |
| Additional Equipment | Compatible with DX3 auxiliaries and RCD add-on modules |
| Neutral Conductor Switching | No (2P configuration) |
| Label Space | Yes |
| Reference Number | 407804 |
| EAN Code | 3245064078047 |
| Carbon Footprint (Manufacturing) | 1.785 kg CO₂ eq. |
Order Legrand DX3 MCB 2P 40A Curve C Circuit Breaker | 407804 at wholesale prices for companies and factories in Iraq and Middle East, get the best deals on bulk purchases, contact us today.
