Shop Legrand DX3 MCB 2 Pole 40A Curve B Circuit Breaker | 408946 In Iraq Best Prices
Legrand DX3 thermal magnetic circuit-breaker with 2-pole, 40A capacity, B curve release, 10/16kA breaking capacity, IP20 protection, and DX³ auxiliaries compatibility for residential and commercial electrical installations.
The Legrand DX3 MCB 2P 40A Curve B is a thermal magnetic circuit-breaker designed to protect wiring installations against overloads and short-circuits. This device features a 2-pole configuration with a rated current of 40A and B curve release characteristic, providing reliable protection for residential and small commercial applications. With a breaking capacity of 10/16kA according to IEC 60898-1 standard, it ensures superior safety and performance. The circuit-breaker is equipped with IP20 protection rating (fingerproof against solid bodies larger than 12.5mm) and is compatible with Legrand DX³ auxiliaries and RCD add-on modules.
This MCB can be supplied via copper cable, prong busbar (top or bottom side), fork busbar (bottom side), or Legrand HX3 plug busbar (top side), offering flexible installation options. The device includes two DIN rail clamps for independent removal while the supplying busbar remains in place. It features a label holder for clear circuit identification and on/off indication printed on the handle with red and green backgrounds. The product complies with substance-restriction requirements and has been designed in an environmentally conscious process with halogen-free materials.
With a rated voltage of 400V, rated insulation voltage of 500V, and impulse withstand voltage of 4kV, this circuit-breaker provides comprehensive electrical protection. The current limiting class 3 ensures maximum limitation of let-through energy. Operating temperature range is -25°C to +70°C, and it supports both solid-core conductors (1.5-35mm²) and multi-wired conductors (1.5-25mm²). The product is built to DIN rail mounting standards with dimensions of 35.4mm width, 94.8mm height, and 77.8mm depth, occupying 2 modular spacings.
Key Features
- Thermal magnetic protection against overloads and short-circuits with B curve release characteristic
- 2-pole configuration with 40A rated current for reliable circuit protection
- Breaking capacity of 10/16kA according to IEC 60898-1 standard for household installations
- IP20 protection rating - fingerproof against solid bodies larger than 12.5mm
- Compatible with Legrand DX³ auxiliaries, RCD add-on modules, and accessories
- Current limiting class 3 for maximum let-through energy limitation
- Flexible supply options: copper cable, prong busbar, fork busbar, or HX3 plug busbar
- DIN rail mounted with independent removal capability
- Label holder for clear circuit identification and status indication
- Halogen-free and environmentally conscious design
- Rated voltage 400V with 500V insulation voltage and 4kV impulse withstand voltage
- Operating temperature range -25°C to +70°C
Technical Specifications
| Specification |
Value |
| Product Type | Thermal Magnetic Circuit Breaker (MCB) |
| Brand | Legrand |
| Series | DX³ |
| Reference Number | 408946 |
| EAN Code | 3245064089463 |
| Number of Poles | 2 (2P) |
| Rated Current | 40 A |
| Release Characteristic | B Curve (3-5 In) |
| Rated Voltage | 400 V AC |
| Rated Insulation Voltage | 500 V |
| Rated Impulse Withstand Voltage | 4 kV |
| Breaking Capacity at 230V | 16 kA (Icn) / 32 kA (Icu) |
| Breaking Capacity at 400V | 10 kA (Icn) / 16 kA (Icu) |
| Current Limiting Class | 3 |
| Protection Degree | IP20 |
| Frequency | 50-60 Hz |
| Width (Modular Spacings) | 2 modules |
| Width | 35.4 mm |
| Height | 94.8 mm |
| Depth | 77.8 mm |
| Built-in Depth | 44 mm |
| Mounting Method | DIN Rail |
| Connection Type | Screwed Terminal |
| Connectable Conductor (Solid-core) | 1.5-35 mm² |
| Connectable Conductor (Multi-wired) | 1.5-25 mm² |
| Supply Direction | Top or Bottom |
| Color | Grey |
| RAL Number | 7035 |
| Degree of Impact Strength | IK02 |
| Operating Temperature Range | -25°C to +70°C |
| Storage Temperature Range | -40°C to +70°C |
| Pollution Degree | 2 |
| Halogen Free | Yes |
| Flush-mounted Installation | Yes |
| Concurrently Switching Neutral | No |
| Additional Equipment Possible | Yes |
| Auxiliary Compatibility | Legrand DX³ auxiliaries and RCD add-on modules |
| Carbon Footprint (Manufacturing) | 1.870 kg CO₂ eq. |
| Standards Compliance | IEC 60898-1, IEC/EN 60529, IEC 60947-2 |
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