Legrand TX3 2-pole 20A C-curve MCB with 6kA breaking capacity, IP20 safety rating, and advanced current limiting technology for residential and commercial electrical protection.
The Legrand TX3 MCB 6000A is a high-performance thermal magnetic circuit-breaker designed for residential and small commercial installations. This 2-pole 20A circuit breaker features a C-curve release characteristic, providing reliable protection against overloads and short-circuits with a 6kA breaking capacity at 400V. The device is IP20 "fingerproof" rated, protecting against solid bodies larger than 12.5mm, ensuring maximum safety in electrical installations. Built with modern engineering standards, this MCB can be supplied via copper cable, prong busbar, or fork busbar connections, offering flexible installation options for various electrical configurations.
The TX3 circuit breaker incorporates advanced current limiting technology with Class 3 energy limitation according to IEC 60898-1 standards, delivering superior short-circuit protection. With a tripping threshold between 100A and 200A for short-circuit scenarios, this device provides precise and reliable fault detection. The unit features a special DIN rail clamp system allowing independent removal even when the fork busbar is still energized. Its compact design measures 35.4mm width with 44mm built-in depth, making it ideal for space-constrained installations.
This product complies with all substance-restriction requirements and has been designed through environmentally conscious processes. The MCB includes a convenient label holder for circuit identification and clear ON/OFF indication printed on the handle with red and green backgrounds. Compatible with Legrand DX3 auxiliaries and accessories, the TX3 can be equipped with additional protective devices. It operates across 50-60 Hz frequency range with rated insulation voltage of 500V and impulse withstand voltage of 4kV, meeting international electrical standards for reliable long-term performance.
Key Features
- 6kA breaking capacity at 400V with precise short-circuit protection (100A-200A C-curve threshold)
- IP20 fingerproof safety rating protecting against solid bodies larger than 12.5mm
- Class 3 current limiting technology for maximum energy limitation per IEC 60898-1 standard
- Flexible installation with copper cable, prong busbar, or fork busbar connection options
- Special DIN rail clamp system allowing independent removal with energized busbar
- Clear ON/OFF indication with red/green handle backgrounds for easy status identification
- Convenient label holder for circuit identification and organization
- Compatible with Legrand DX3 auxiliaries and protective accessories
- Environmentally conscious design complying with substance-restriction requirements
- Operates across 50-60 Hz frequency range with 500V rated insulation voltage
Technical Specifications
| Specification |
Value |
| Product Type | Thermal Magnetic Circuit Breaker (MCB) |
| Brand | Legrand |
| Model | TX3 6000A |
| Reference Number | 403529 |
| EAN Code | 3414970389152 |
| Number of Poles | 2 (2P) |
| Rated Current | 20 A |
| Release Characteristic | C Curve |
| Rated Voltage | 400 V |
| Rated Insulation Voltage | 500 V |
| Rated Impulse Withstand Voltage | 4 kV |
| Breaking Capacity at 230V | 10 kA |
| Breaking Capacity at 400V | 6 kA |
| Short-Circuit Tripping Threshold | 100A to 200A (C curve between 5In and 10In) |
| Current Limiting Class | 3 |
| Voltage Type | AC |
| Frequency Range | 50-60 Hz |
| Degree of Protection | IP20 (Fingerproof) |
| Impact Strength Rating | IK02 |
| Width | 35.4 mm |
| Height | 88 mm |
| Depth | 77.8 mm |
| Built-in Depth | 44 mm |
| Modular Width | 2 module spacing units |
| Connection Type | Screwed terminal, Busbar and cable |
| Supply Direction | Top or bottom |
| Flush-Mounted Installation | Yes |
| Neutral Conductor Switching | No |
| Pollution Degree | 2 |
| Additional Equipment Possible | Yes (DX3 auxiliaries and accessories) |
| Color | Grey |
| RAL Number | 7035 |
| Halogen Free | Yes |
| Storage Temperature Range | -40°C to +70°C |
| Nominal Voltage Range | 240V to 415V |
| Mounting Method | DIN rail |
| Label Space | Yes |
| Explosion-Proof | No |
| Standards Compliance | IEC 60898-1, IEC/EN 60529 |
| Environmental Compliance | RoHS Directive, REACH Declaration, Substance-Restriction Requirements |
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