Legrand TX3 thermal magnetic circuit-breaker with 4 poles, 16A rated current, and 10kA breaking capacity. Features C curve protection, IP20 fingerproof design, energy limitation class 3, and compatibility with Legrand DX3 accessories.
The Legrand TX3 MCB 4 Pole 16A Curve C is a thermal magnetic circuit-breaker designed to protect wiring installations against overloads and short-circuits with exceptional reliability. With a 10kA breaking capacity at 400V and C curve characteristics, this device provides comprehensive protection for residential and small commercial electrical systems. The circuit-breaker can control and isolate the installation while accepting both cable and busbar supply options, making it versatile for various installation configurations. Its robust design includes fingerproof protection (IP20) and energy limitation class 3 capabilities, ensuring maximum safety and performance in demanding electrical environments.
This advanced MCB features a special DIN rail clamp on the bottom side, allowing independent removal even when the fork busbar is still in place. The device is equipped with a label holder for clear circuit identification and includes ON/OFF indication printed on the handle with red and green backgrounds for easy status identification. The TX3 series is compatible with Legrand DX3 auxiliaries and accessories, providing flexibility for system expansion and customization. Built with halogen-free materials and designed in an environmentally conscious process, this circuit-breaker meets all modern sustainability and safety standards.
With a rated current of 16A and rated voltage of 400V, the TX3 MCB delivers consistent performance across 50-60 Hz frequency ranges. The device features a compact built-in depth of 44mm and occupies 4 modular spacings, making it ideal for space-constrained installations. Its tripping threshold in case of short-circuit ranges between 80A and 160A (C curve between 5 In and 10 In), providing precise protection tailored to specific circuit requirements. The product complies with IEC 60898-1 standards for household installations and is fully compliant with substance-restriction requirements.
Key Features
- 10kA breaking capacity at 400V according to IEC 60898-1 standard for household installations
- C curve tripping characteristic with short-circuit threshold between 80A and 160A (5 In to 10 In)
- IP20 fingerproof protection against solid bodies larger than 12.5mm with energy limitation class 3
- Accepts cable, prong busbar (top/bottom), or fork busbar (bottom) supply options
- Special DIN rail clamp allowing independent removal with fork busbar still in place
- Compatible with Legrand DX3 auxiliaries and accessories for system expansion
- Label holder for clear circuit identification with ON/OFF indication on handle
- Halogen-free materials designed in environmentally conscious process
- Compact 44mm built-in depth occupying only 4 modular spacings
- Concurrently switching neutral conductor for enhanced safety
Technical Specifications
| Specification |
Value |
| Product Type | Thermal Magnetic Circuit Breaker (MCB) |
| Number of Poles | 4 poles (total and protected) |
| Rated Current | 16 Amperes (A) |
| Rated Voltage | 400 Volts (V) AC |
| Rated Insulation Voltage | 500 Volts (Ui) |
| Rated Impulse Withstand Voltage | 4 kV (Uimp) |
| Breaking Capacity at 230V | 16 kA (Icn according to EN 60898) |
| Breaking Capacity at 400V | 10 kA (Icn according to EN 60898) |
| Release Characteristic | C Curve |
| Tripping Threshold | 80A to 160A (C curve between 5 In and 10 In) |
| Current Limiting Class | 3 (Maximum energy limitation) |
| Frequency Range | 50-60 Hz |
| Degree of Protection | IP20 (Fingerproof) |
| Degree of Impact Strength | IK02 |
| Built-in Depth | 44 mm |
| Width in Modular Spacings | 4 modules |
| Physical Dimensions | Width 70.8 mm × Height 88 mm × Depth 77.8 mm |
| Colour | Grey (RAL 7035) |
| Connection Type | Screwed terminal, Busbar and cable |
| Supply Direction | Top or bottom electric supply |
| Mounting Method | DIN rail (bottom side clamp) |
| Pollution Degree | 2 |
| Storage Temperature Range | -40°C to +70°C |
| Nominal Voltage Range | 240-415 Volts |
| Material Compliance | Halogen free, RoHS compliant, REACH compliant |
| Standards Compliance | IEC 60898-1, IEC/EN 60529 |
| Additional Features | Label holder, Concurrently switching neutral conductor, Compatible with DX3 auxiliaries |
| Reference Number | 404256 |
| EAN Code | 3414970394897 |
| Manufacturer | Legrand |
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