3-pole thermal magnetic circuit breaker with 32A rating, 10kA breaking capacity, C curve tripping, IP20 protection, and DIN rail mounting for residential and commercial electrical installations.
The Legrand TX3 MCB (Miniature Circuit Breaker) is a thermal magnetic circuit-breaker designed to protect wiring installations against overloads and short-circuits. With a 10kA breaking capacity at 400V and C curve tripping characteristics, this 3-pole 32A device is ideal for residential and small commercial applications. The breaker features IP20 protection rating, making it suitable for standard indoor environments. It can be supplied via copper cable, prong busbar, or fork busbar connections, offering flexible installation options for various electrical configurations.
This circuit breaker is equipped with a special DIN rail clamp on the bottom side, allowing independent removal even when the fork busbar is still in place. The device includes 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. With current limiting class 3 according to IEC 60898-1 standard, it provides maximum limitation of let-through energy, ensuring superior protection for electrical installations.
The TX3 is compatible with Legrand DX3 auxiliaries and accessories, providing flexibility for system expansion. It operates at rated voltage of 400V with insulation voltage of 500V and impulse withstand voltage of 4kV. The device is halogen-free and complies with substance-restriction requirements, designed with environmental consciousness. Built-in depth of 44mm and width of 53.1mm (3 modular spacings) makes it suitable for standard DIN rail mounting in electrical panels.
Key Features
- Breaking capacity of 10kA at 400V according to IEC 60898-1 standard for household installations
- C curve tripping characteristic with threshold between 160A and 320A (5In to 10In)
- IP20 protection rating - fingerproof against solid bodies larger than 12.5mm
- Energy limitation class 3 for maximum let-through energy control
- Compatible with Legrand DX3 auxiliaries and accessories for system flexibility
- Special DIN rail clamp allowing independent removal while fork busbar remains in place
- Clear circuit identification with label holder and On/Off indication
- Multiple connection options: copper cable, prong busbar, or fork busbar
- Halogen-free and environmentally conscious design
- Built-in depth of 44mm for standard panel mounting
Technical Specifications
| Specification |
Value |
| Product Type | Thermal Magnetic Circuit Breaker (MCB) |
| Number of Poles | 3 poles (total and protected) |
| Rated Current | 32 Amperes |
| Rated Voltage | 400V AC |
| Insulation Voltage | 500V |
| Impulse Withstand Voltage | 4 kV |
| Breaking Capacity at 400V | 10 kA (Icn according to EN 60898) |
| Breaking Capacity at 230V | 16 kA (Icn according to EN 60898) |
| Tripping Characteristic | C Curve (160A-320A or 5In-10In) |
| Current Limiting Class | Class 3 |
| Frequency | 50-60 Hz |
| Degree of Protection | IP20 |
| Degree of Impact Strength | IK02 |
| Built-in Depth | 44 mm |
| Width | 53.1 mm (3 modular spacings) |
| Height | 88 mm |
| Total Depth | 77.8 mm |
| Color | Grey (RAL 7035) |
| Connection Type | Screwed terminal, Busbar and cable |
| Mounting Method | DIN Rail |
| Flush-mounted Installation | Yes |
| Concurrently Switching Neutral | No |
| Pollution Degree | 2 |
| Storage Temperature Range | -40°C to 70°C |
| Nominal Voltage Range | 240V - 415V |
| Supply Direction | Top or bottom |
| Halogen Free | Yes |
| Additional Equipment | Possible with DX3 accessories |
| Label Space | Yes |
| Reference Number | 404225 |
| EAN Code | 3414970394439 |
| Brand | Legrand |
| Series | TX³ |
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