Thermal magnetic 2-pole circuit breaker with 25A C curve, 6000A breaking capacity, and advanced energy limitation technology for household and small commercial electrical protection.
The Legrand MCB TX3 is a thermal magnetic circuit-breaker designed to protect and control wiring installations against overloads and short-circuits. With a rated current of 25A, C curve release characteristic, 2-pole configuration, and 230/400V~ rating, this device offers a breaking capacity of 6000A according to IEC 60898-1 standard for household and small commercial applications. The MCB TX3 features advanced energy limitation technology (class 3) that minimizes let-through energy during fault conditions, ensuring superior protection for sensitive equipment.
This circuit breaker is equipped with a special DIN rail clamp on the bottom side, allowing independent removal even when the fork busbar is still in place. The device is fingerproof (IP20 protection according to IEC/EN 60529) and protected against solid bodies larger than 12.5mm. It features a convenient label holder for circuit identification and clear ON/OFF indication printed on the handle with red and green backgrounds for easy status identification.
The MCB TX3 can be supplied by copper cable, prong busbar (top or bottom side), or fork busbar (bottom side). It is compatible with Legrand DX3 auxiliaries and accessories, and can be connected to aluminium cable using Legrand DX3 terminal accessory. This environmentally conscious product complies with substance-restriction requirements and is designed for professional installation in compliance with local electrical codes.
Key Features
- Breaking capacity of 6000A according to IEC 60898-1 standard for household installations
- C curve release characteristic with tripping threshold between 125A and 250A (5 In to 10 In)
- Advanced energy limitation class 3 technology minimizing let-through energy during faults
- IP20 fingerproof protection against solid bodies larger than 12.5mm per IEC/EN 60529
- Special DIN rail clamp allowing independent removal with fork busbar in place
- Compatible with Legrand DX3 auxiliaries and accessories for enhanced functionality
- Label holder for clear circuit identification with ON/OFF status indication
- Multiple supply options: copper cable, prong busbar, or fork busbar connections
- Environmentally conscious design complying with substance-restriction requirements
- Rated voltage 230/400V~ with 50-60 Hz frequency compatibility
Technical Specifications
| Specification |
Value |
| Product Type | Thermal Magnetic Circuit Breaker (MCB) |
| Brand | Legrand |
| Model | TX3 |
| SKU | 403530 |
| EAN Code | 3414970389183 |
| Number of Poles | 2 (2P) |
| Rated Current | 25 A |
| Release Characteristic | C Curve |
| Rated Voltage | 230/400V AC |
| Rated Insulation Voltage | 500V |
| Rated Impulse Withstand Voltage | 4 kV |
| Breaking Capacity at 230V | 10 kA |
| Breaking Capacity at 400V | 6 kA |
| Frequency Range | 50-60 Hz |
| Current Limiting Class | 3 |
| Degree of Protection (IP) | IP20 |
| Impact Strength (IK) | IK02 |
| Width | 35.4 mm |
| Height | 88 mm |
| Depth | 77.8 mm |
| Built-in Depth | 44 mm |
| Width in Modular Spacings | 2 |
| Colour | Grey |
| RAL Number | 7035 |
| Connection Type | Screwed terminal, Busbar and cable |
| Supply Direction | Top or bottom |
| Mounting Method | DIN rail |
| Flush-mounted Installation | Yes |
| Concurrently Switching Neutral | No |
| Pollution Degree | 2 |
| Storage Temperature Range | -40 to +70°C |
| Nominal Voltage Range | 240-415V |
| Halogen Free | Yes |
| Terminal Marking | No |
| Label Space | Yes |
| Additional Equipment | Possible |
| Explosion-proof | No |
| Tripping Threshold | 125A to 250A (C curve 5 In to 10 In) |
| Protection Class | Energy Limitation Class 3 |
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