Single-pole thermal magnetic circuit-breaker with 10A rating and 10kA breaking capacity. Features C-curve tripping, IP20 fingerproof protection, and compatible with Legrand DX3 accessories for reliable electrical installation protection.
The Legrand TX3 MCB is a thermal magnetic circuit-breaker specifically designed to protect wiring installations against overloads and short-circuits. With a breaking capacity of 10kA at 230V, this single-pole device offers reliable protection for residential and small commercial applications. The circuit-breaker features C-curve tripping characteristics with a threshold between 5In and 10In, ensuring precise protection against short-circuits. It provides IP20 fingerproof protection, preventing contact with live parts and solid bodies larger than 12.5mm, making it safe for use in accessible locations.
This MCB can be supplied through multiple connection methods including copper cable, prong busbar (top or bottom side), or fork busbar (bottom side), offering flexible installation options. The device features energy limitation class 3 according to IEC 60898-1 standard, minimizing let-through energy during fault conditions. The TX3 is compatible with Legrand DX3 auxiliaries and accessories, allowing for customization and expansion of functionality. Additionally, it can be connected to aluminum cables using the appropriate Legrand DX3 terminal accessory.
The product includes a special DIN rail clamp on the bottom side for independent removal without disturbing the fork busbar. A convenient label holder is fitted for clear circuit identification, while on/off indication is printed on the handle with red and green backgrounds for easy status recognition. Built with halogen-free materials and designed through an environmentally conscious process, this circuit-breaker complies with substance-restriction requirements and represents modern electrical safety standards.
Key Features
- 10kA breaking capacity at 230V for reliable short-circuit protection
- C-curve tripping characteristic with threshold between 5In and 10In
- IP20 fingerproof protection against solid bodies larger than 12.5mm
- Energy limitation class 3 minimizes let-through energy during faults
- Compatible with Legrand DX3 auxiliaries and accessories for flexible installation
- Multiple connection options: copper cable, prong busbar, or fork busbar
- Special DIN rail clamp allows independent removal without disturbing busbar
- Label holder and on/off indication on handle for easy identification
- Halogen-free materials and environmentally conscious design
- Complies with IEC 60898-1 standard for household installations
Technical Specifications
| Specification |
Value |
| Product Type | Thermal Magnetic Circuit-Breaker (MCB) |
| Number of Poles | 1 pole (single-pole) |
| Rated Current | 10 A |
| Rated Voltage | 230 V AC |
| Rated Insulation Voltage | 500 V |
| Rated Impulse Withstand Voltage | 4 kV |
| Breaking Capacity (Icn) | 10 kA at 230V according to EN 60898 |
| Release Characteristic | C-curve (5In to 10In) |
| Current Limiting Class | Class 3 |
| Frequency Range | 50-60 Hz |
| Degree of Protection | IP20 (fingerproof) |
| Impact Strength | IK02 |
| Width | 17.8 mm |
| Height | 88 mm |
| Built-in Depth | 44 mm |
| Overall Depth | 77.8 mm |
| Modular Width | 1 module spacing |
| Color | Grey (RAL 7035) |
| Connection Type | Screwed terminal, Busbar and cable |
| Supply Direction | Top or bottom |
| Storage Temperature Range | -40 to 70°C |
| Nominal Voltage Range | 240-415 V |
| Mounting Method | DIN rail |
| Halogen Free | Yes |
| Pollution Degree | 2 |
| Additional Equipment Possible | Yes (DX3 auxiliaries and accessories) |
| Flush-mounted Installation | Yes |
| Concurrently Switching Neutral | No |
| Explosion-proof | No |
| Reference Number | 404169 |
| EAN | 3414970393517 |
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