Single-pole thermal-magnetic circuit breaker with 50A rated current, 10,000A breaking capacity, C curve tripping, IP20 finger-safe design, and energy limitation class 3 for reliable household and commercial electrical protection.
The Legrand MCB TX3 is a thermal-magnetic circuit breaker designed to protect wiring installations against overloads and short circuits. With a breaking capacity of 10,000A according to IEC 60898-1 standard, this single-pole device offers reliable protection for household and small commercial applications. The circuit breaker features C curve tripping characteristics with a tripping threshold between 250A and 500A (5-10 In), making it ideal for general-purpose circuits with moderate inrush currents.
This MCB provides comprehensive protection with IP20 finger-safe design, ensuring safety in residential and commercial environments. The device includes energy limitation class 3 according to IEC 60898-1, offering maximum protection against let-through energy. It can be supplied by copper cable, prong busbar (top or bottom side), or fork busbar (bottom side), providing flexible installation options. The special DIN rail clamp on the bottom side allows independent removal even when the fork busbar is still in place.
The TX3 series is equipped with a label holder for clear circuit identification and features ON/OFF indication printed on the handle with red and green backgrounds for easy status identification. Compatible with Legrand DX3 auxiliaries and accessories, this circuit breaker meets all environmental compliance requirements including RoHS and REACH regulations. With halogen-free construction and environmentally conscious design, the Legrand MCB TX3 represents a reliable and sustainable solution for electrical installation protection.
Key Features
- Breaking capacity of 10,000A according to IEC 60898-1 standard for household installations
- C curve tripping with threshold between 250A and 500A (5-10 In) for moderate inrush currents
- IP20 finger-safe design protecting against solid bodies larger than 12.5mm
- Energy limitation class 3 for maximum protection against let-through energy
- Compatible with Legrand DX3 auxiliaries and accessories for enhanced functionality
- Special DIN rail clamp allowing independent removal with busbar in place
- Label holder for clear circuit identification and status indication
- Accepts copper cable, prong busbar, or fork busbar connections
- Halogen-free construction meeting RoHS and REACH compliance requirements
- ON/OFF indication with red and green background markings for easy status identification
Technical Specifications
| Specification |
Value |
| Product Reference | 404176 |
| EAN Code | 3414970393654 |
| Brand | Legrand |
| Product Series | TX³ |
| Type | Thermal-magnetic circuit breaker |
| Number of Poles | 1 pole |
| Rated Current | 50 A |
| Rated Voltage | 230 V AC |
| Rated Insulation Voltage | 500 V |
| Rated Impulse Withstand Voltage | 4 kV |
| Breaking Capacity | 10,000 A (10 kA) at 230V |
| Tripping Characteristic | C curve (5-10 In) |
| Short-circuit Threshold | 250A to 500A |
| Current Limiting Class | 3 |
| Degree of Protection | IP20 (Finger-safe) |
| Degree of Impact Strength | IK02 |
| Pollution Degree | 2 |
| Width | 17.8 mm |
| Height | 88 mm |
| Depth | 77.8 mm (built-in depth: 44 mm) |
| Modular Spacing | 1 module |
| Mounting Method | DIN rail |
| Connection Type | Screwed terminal, Busbar and cable |
| Supply Direction | Top or bottom |
| Frequency Range | 50-60 Hz |
| Nominal Voltage Range | 240-415 V |
| Storage Temperature | -40 to 70°C |
| Color | Grey (RAL 7035) |
| Halogen Free | Yes |
| Flush-mounted Installation | Yes |
| Neutral Conductor Switching | No |
| Additional Equipment Possible | Yes |
| Terminal Marking | No |
| Label Space Available | Yes |
| Compliance Standards | IEC 60898-1, IEC/EN 60529, RoHS, REACH |
| Environmental Design | Environmentally conscious process |
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