Legrand TX3 thermal magnetic circuit-breaker with 6000A breaking capacity, 2-pole configuration, 6A rated current, B curve tripping, and IP20 protection for residential and small commercial wiring installations.
The Legrand TX3 MCB 6000A is a thermal magnetic circuit-breaker designed to protect wiring installations against overloads and short-circuits with a breaking capacity of 6000A and B curve tripping characteristic. This 2-pole device features IP20 protection rating, making it fingerproof against solid bodies larger than 12.5mm. The circuit-breaker is equipped with a special DIN rail clamp allowing independent removal while the fork busbar remains in place, and includes a label holder for clear circuit identification. With maximum energy limitation (Class 3 according to IEC 60898-1), this device ensures reliable control and isolation of electrical installations in residential and small commercial applications.
The TX3 MCB can be supplied by copper cable, prong busbar (top or bottom side), or fork busbar (bottom side), offering flexible installation options. The device features on/off indication printed on the handle with red and green backgrounds for easy status identification. Built to comply with substance-restriction requirements and designed through environmentally conscious processes, this circuit-breaker meets IEC 60898-1 standard specifications. It can be equipped with Legrand DX3 auxiliaries and accessories, and supports connection to aluminium cable using Legrand DX3 terminal accessory. The rated voltage is 400V with 500V rated insulation voltage and 4kV impulse withstand voltage.
With a compact depth of 44mm and width of 35.4mm (2 modular spacings), this circuit-breaker is ideal for space-constrained installations. The device operates at 50-60Hz frequency with pollution degree 2 rating and IK02 impact strength. Storage temperature range is -40 to 70°C, and nominal voltage range is 240-415V. Installation should be performed by qualified electricians in compliance with applicable installation rules to ensure safety and proper operation.
Key Features
- Breaking capacity of 6000A according to IEC 60898-1 standard with B curve tripping between 3In and 5In (18A-30A)
- IP20 protection rating - fingerproof against solid bodies larger than 12.5mm per IEC/EN 60529
- Flexible supply options: copper cable, prong busbar (top/bottom), or fork busbar (bottom side)
- Special DIN rail clamp allowing independent removal while busbar remains in place
- Maximum energy limitation Class 3 per IEC 60898-1 standard for enhanced protection
- Compatible with Legrand DX3 auxiliaries and accessories for extended functionality
- Clear on/off indication with red/green backgrounds on handle for easy status identification
- Label holder for convenient circuit identification and documentation
- Supports connection to aluminium cable with Legrand DX3 terminal accessory
- Compact design with 44mm depth and 35.4mm width for space-efficient installation
Technical Specifications
| Specification |
Value |
| Product Type | Thermal Magnetic Circuit-Breaker (MCB) |
| Model | TX3 |
| Reference Number | 403383 |
| EAN Code | 3414970387059 |
| Number of Poles | 2 poles |
| Rated Current | 6 Amperes |
| Release Characteristic | B Curve |
| Breaking Capacity | 6000A (6 kA at 400V, 10 kA at 230V) |
| Tripping Threshold | 18A to 30A (B curve between 3In and 5In) |
| Rated Voltage | 400V AC |
| Rated Insulation Voltage | 500V |
| Rated Impulse Withstand Voltage | 4 kV |
| Frequency Range | 50-60 Hz |
| Nominal Voltage Range | 240-415V |
| Current Limiting Class | Class 3 |
| Degree of Protection | IP20 |
| Impact Strength Rating | IK02 |
| Pollution Degree | 2 |
| Width (Modular Units) | 2 modular spacings |
| Width (mm) | 35.4 mm |
| Height (mm) | 88 mm |
| Depth (mm) | 44 mm (built-in depth) / 77.8 mm (total depth) |
| Colour | Grey (RAL 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 |
| Storage Temperature Range | -40°C to 70°C |
| Halogen Free | Yes |
| Standard Compliance | IEC 60898-1, IEC/EN 60529 |
| Additional Features | Compatible with Legrand DX3 auxiliaries and accessories |
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