Legrand TX3 2-pole 10A thermal magnetic circuit-breaker with 10kA breaking capacity, B curve protection, IP20 finger-safe design, and energy limitation class 3 for reliable protection against overloads and short-circuits.
The Legrand MCB TX3 is a thermal magnetic circuit-breaker designed to protect wiring installations against overloads and short-circuits. With a 10kA breaking capacity and B curve characteristics, this 2-pole device offers reliable protection for residential and small commercial applications. The circuit-breaker features IP20 finger-safe protection, ensuring safety in standard environments, and incorporates energy limitation class 3 technology to minimize let-through energy during fault conditions.
This MCB is engineered with a special DIN rail clamp on the bottom side, allowing independent removal even when the fork busbar supplying the row remains in place. The device can be supplied via copper cable, prong busbar (top or bottom side), or fork busbar (bottom side), providing flexible installation options. Its tripping threshold for short-circuits ranges between 30A and 50A (B curve between 3 In and 5 In), ensuring precise protection tailored to circuit requirements.
The TX3 MCB is compatible with Legrand DX3 auxiliaries and accessories, and can be connected to aluminum cables using Legrand DX3 terminal accessory. It features a convenient label holder for clear circuit identification and ON/OFF indication printed on the handle with red and green backgrounds. The device complies with substance-restriction requirements and has been designed with environmental consciousness, making it an eco-friendly choice for modern electrical installations.
Key Features
- 10kA breaking capacity according to IEC 60898-1 standard for household installations
- B curve tripping characteristic with short-circuit threshold between 30A and 50A (3 In to 5 In)
- IP20 finger-safe protection against solid bodies larger than 12.5mm per IEC/EN 60529
- Energy limitation class 3 for maximum reduction of let-through energy during faults
- Compatible with Legrand DX3 auxiliaries, accessories, and aluminum cables with terminal adapters
- Special DIN rail clamp allowing independent removal without disturbing busbar connections
- Clear label holder and ON/OFF indication for easy circuit identification and status visibility
- Flexible power supply options: copper cable, prong busbar, or fork busbar connections
- Environmentally conscious design complying with substance-restriction requirements
- Dual pole protection with concurrent neutral conductor switching capability
Technical Specifications
| Specification |
Value |
| Product Type | Thermal Magnetic Circuit-Breaker |
| Number of Poles | 2 poles (2 protected poles) |
| Rated Current | 10 Amperes |
| Rated Voltage | 400V AC |
| Rated Insulation Voltage | 500V |
| Rated Impulse Withstand Voltage | 4 kV |
| Breaking Capacity (10kA at 400V) | 10,000 Amperes |
| Breaking Capacity (16kA at 230V) | 16,000 Amperes |
| Release Characteristic | B Curve (3 In to 5 In) |
| Current Limiting Class | Class 3 |
| Degree of Protection | IP20 (Finger-safe) |
| Degree of Impact Strength | IK02 |
| Frequency Range | 50-60 Hz |
| Voltage Type | AC (Alternating Current) |
| Nominal Voltage Range | 240-415V |
| Width | 35.4 millimeters |
| Height | 88 millimeters |
| Depth | 77.8 millimeters |
| Built-in Depth | 44 millimeters |
| Modular Width | 2 modular spacings |
| Color | Grey (RAL 7035) |
| Connection Type | Screwed terminal, Busbar and cable |
| Electric Supply Direction | Top or bottom |
| Mounting Method | DIN Rail |
| Flush-Mounted Installation | Yes |
| Storage Temperature Range | -40°C to +70°C |
| Pollution Degree | 2 |
| Halogen Free | Yes |
| Additional Equipment Possible | Yes (Compatible with DX3 auxiliaries) |
| Terminal Marking Indication | No |
| Concurrently Switching Neutral | No |
| Label Space Available | Yes |
| Explosion-Proof | No |
| Reference Number | 404110 |
| EAN Code | 3414970392374 |
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