Shop Legrand TX3 MCB 3 Pole 40A Curve B Circuit Breaker | 403406 In Iraq Best Prices
Legrand TX3 3-pole 40A MCB with 6000A breaking capacity, B-curve protection, IP20 safety, and advanced current limiting for reliable household electrical protection.
The Legrand TX3 MCB 6000A is a thermal magnetic circuit-breaker designed to protect wiring installations against overloads and short-circuits with exceptional reliability and safety. This 3-pole device features a rated current of 40A and offers a 6000A breaking capacity at 400V~, making it ideal for household and small commercial applications. The B-curve tripping characteristic provides optimal protection for standard residential circuits, with a tripping threshold between 120A and 200A (3-5 times the rated current). The device is equipped with IP20 "fingerproof" safety protection, preventing contact with solid bodies larger than 12.5mm, ensuring safe operation in domestic environments.
This circuit-breaker incorporates advanced current limiting technology (Class 3 energy limitation) that minimizes let-through energy during fault conditions, providing superior protection for connected equipment. The TX3 can be supplied via copper cable, prong busbar (top or bottom side), or fork busbar (bottom side), offering flexible installation options. The special DIN rail clamp on the bottom side allows independent removal of the product even when the fork busbar is still in place, facilitating maintenance and troubleshooting. The device features a convenient label holder for clear circuit identification and ON/OFF indication printed on the handle with red and green backgrounds.
Built to the highest standards, the MCB TX3 complies with IEC 60898-1 standard for household installations and includes compatibility with Legrand DX3 auxiliaries and accessories. The device is halogen-free and designed with environmental consciousness in mind. With a rated insulation voltage of 500V and rated impulse withstand voltage of 4kV, this circuit-breaker delivers reliable protection for modern electrical installations. Installation should be performed by qualified electricians in compliance with local installation rules.
Key Features
- Breaking capacity of 6000A at 400V according to IEC 60898-1 standard for household installations
- B-curve tripping characteristic with threshold between 120A and 200A for optimal household protection
- IP20 fingerproof safety protection against solid bodies larger than 12.5mm
- Advanced Class 3 current limiting technology minimizing let-through energy during faults
- Compatible with Legrand DX3 auxiliaries, accessories, and aluminum cables with terminal accessory
- Special DIN rail clamp allowing independent removal while fork busbar remains in place
- Convenient label holder with ON/OFF indication for easy circuit identification
- Flexible supply options via copper cable, prong busbar, or fork busbar
- Rated insulation voltage of 500V and impulse withstand voltage of 4kV
- Halogen-free design with environmentally conscious manufacturing process
Technical Specifications
| Specification |
Value |
| Product Type | Thermal Magnetic Circuit Breaker (MCB) |
| Brand | Legrand |
| Model Series | TX3 |
| Reference Number | 403406 |
| EAN Code | 3414970387622 |
| Number of Poles | 3 |
| Rated Current | 40 A |
| Rated Voltage | 400 V AC |
| Breaking Capacity (Icn) | 6000 A at 400V / 10 kA at 230V |
| Release Characteristic | B Curve |
| Tripping Threshold | 120-200 A (3-5 In) |
| Rated Insulation Voltage (Ui) | 500 V |
| Rated Impulse Withstand Voltage (Uimp) | 4 kV |
| Current Limiting Class | 3 |
| Degree of Protection (IP) | IP20 |
| Degree of Impact Strength (IK) | IK02 |
| Width | 53.1 mm (3 modular spacings) |
| Height | 88 mm |
| Depth | 77.8 mm |
| Built-in Depth | 44 mm |
| Mounting Method | DIN Rail |
| Connection Type | Screwed Terminal, Busbar and Cable |
| Supply Direction | Top or Bottom |
| Frequency | 50-60 Hz |
| Nominal Voltage Range | 240-415 V |
| Pollution Degree | 2 |
| Storage Temperature Range | -40 to +70 °C |
| Color | Grey |
| RAL Number | 7035 |
| Halogen Free | Yes |
| Neutral Conductor Switching | No |
| Flush-mounted Installation | Yes |
| Explosion-proof | No |
| Additional Equipment Possible | Yes |
| Compliance Standards | IEC 60898-1, IEC/EN 60529 |
| Warranty | Standard Legrand Warranty |
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