Premium 4-pole MCB with 63A rated current, 10000A breaking capacity, B-curve protection, and advanced current limiting technology for residential and commercial electrical installations
The Legrand TX3 MCB (Miniature Circuit Breaker) is a high-performance 4-pole modular device designed for residential and small commercial electrical installations. With a rated current of 63A and a breaking capacity of 10000A according to IEC 60898-1 standard, this circuit breaker provides reliable protection against overcurrents and short circuits. The device features a B-curve characteristic with a tripping threshold between 189A and 315A (3-5 times the rated current), making it ideal for general purpose applications with moderate inrush currents.
This TX3 model incorporates advanced safety features including current limiting class 3 technology for maximum energy limitation and IP20 protection rating against solid bodies larger than 12.5mm. The breaker can be supplied via copper cable, prong busbar, or fork busbar connections, offering flexible installation options. It features a special DIN rail clamp on the bottom side allowing independent removal even when the fork busbar is still in place, and includes a convenient label holder for circuit identification.
The product is designed with environmental consciousness, complying with substance-restriction requirements and RoHS directives. Its gray color (RAL 7035) and compact dimensions (70.8mm width, 88mm height, 77.8mm depth) make it suitable for space-constrained panel installations. The TX3 is compatible with Legrand DX3 auxiliaries and accessories, and can be connected to aluminum cables using appropriate terminal accessories, providing comprehensive electrical protection for modern building installations.
Key Features
- Breaking capacity of 10000A according to IEC 60898-1 standard for household installations
- B-curve tripping characteristic with threshold between 189A and 315A for reliable short-circuit protection
- Current limiting class 3 technology for maximum energy limitation and reduced let-through energy
- IP20 protection rating against solid bodies larger than 12.5mm with fingerproof design
- Compatible with Legrand DX3 auxiliaries and accessories for extended functionality
- Special DIN rail clamp allowing independent removal when fork busbar is in place
- Convenient label holder for clear circuit identification and status indication
- Flexible connection options via copper cable, prong busbar, or fork busbar
- Halogen-free and environmentally conscious design complying with RoHS requirements
- Rated voltage 400V with impulse withstand voltage of 4kV for robust protection
Technical Specifications
| Specification |
Value |
| Product Name | MCB TX3 10000A 4 Pole 63A Curve B |
| Reference Number | 404160 |
| EAN Code | 3414970393371 |
| Manufacturer | Legrand |
| Product Series | TX3 |
| Number of Poles | 4 poles |
| Rated Current | 63A |
| Release Characteristic | B curve (189A-315A) |
| Rated Voltage | 400V AC |
| Rated Insulation Voltage | 500V |
| Rated Impulse Withstand Voltage | 4kV |
| Breaking Capacity at 230V | 16kA according to EN 60898 |
| Breaking Capacity at 400V | 10kA according to EN 60898 |
| Current Limiting Class | Class 3 |
| Frequency Range | 50-60 Hz |
| Degree of Protection | IP20 |
| Impact Strength Rating | IK02 |
| Width | 70.8mm (4 modular spacings) |
| Height | 88mm |
| Depth | 77.8mm (44mm built-in depth) |
| Color | Grey (RAL 7035) |
| Connection Type | Screwed terminal, Busbar and cable |
| Mounting Method | DIN rail |
| Pollution Degree | 2 |
| Storage Temperature Range | -40°C to 70°C |
| Nominal Voltage Range | 240V-415V |
| Concurrent Switching of Neutral | Yes |
| Additional Equipment Possible | Yes - compatible with DX3 auxiliaries |
| Halogen Free | Yes |
| Flush-Mounted Installation | Yes |
| Terminal Marking Indication | No |
| Label Space | Yes - includes label holder |
| Supply Direction | By top or bottom |
| Explosion-Proof | No |
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