Legrand DX3 single-pole 10A circuit breaker with C-curve protection, 6kA breaking capacity, IP20 rated, suitable for household and small commercial installations with flexible connection options.
The Legrand DX3 MCB is a thermal magnetic circuit-breaker designed to protect wiring installations against overloads and short-circuits. This single-pole device features a 10A rated current with a C-curve characteristic, providing a breaking capacity of 6kA according to IEC 60898-1 standard for household installations. The C-curve design ensures a tripping threshold between 50A and 100A (5 In to 10 In), making it ideal for general lighting and standard circuits. The device can be supplied by copper cable, prong busbar (top or bottom side), fork busbar (bottom side), or Legrand HX3 plug busbar (top side), offering flexible installation options.
This MCB is protected against solid bodies larger than 12.5mm with IP20 protection according to IEC/EN 60529 standard. It features maximum energy limitation class 3 according to IEC 60898-1 standard, ensuring superior protection of downstream equipment. The device can be equipped with Legrand DX3 auxiliaries, RCD add-on modules, and various accessories for enhanced functionality. It can also be connected to aluminum cable with terminal accessory n° 4 063 10, providing versatile connection capabilities.
The product complies with substance-restriction requirements and has been designed in an environmentally conscious process, with a carbon footprint of 0.818 kg CO2 eq. during the manufacturing phase. Fitted with two DIN rail clamps (top and bottom), it allows independent removal when the prong 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.
Key Features
- Thermal magnetic protection against overloads and short-circuits
- 6kA breaking capacity at 230V per IEC 60898-1 standard
- C-curve characteristic with 50-100A tripping threshold
- IP20 protection against solid bodies larger than 12.5mm
- Energy limitation class 3 for superior downstream equipment protection
- Compatible with Legrand DX3 auxiliaries and RCD add-on modules
- Flexible connection options: copper cable, prong busbar, fork busbar, or HX3 plug busbar
- DIN rail mounted with independent removal capability
- Label holder for circuit identification
- Environmentally conscious design with halogen-free materials
Technical Specifications
| Specification |
Value |
| Product Type | Thermal Magnetic Circuit Breaker (MCB) |
| Number of Poles | 1 pole |
| Rated Current | 10 A |
| Rated Voltage | 230 V AC |
| Rated Insulation Voltage | 500 V |
| Rated Impulse Withstand Voltage | 4 kV |
| Breaking Capacity (Icn) | 6 kA at 230V per IEC 60898-1 |
| Ultimate Breaking Capacity (Icu) | 10 kA at 230V per IEC 60947-2 |
| Trip Characteristic | C-curve (50-100A or 5-10 In) |
| Current Limiting Class | Class 3 |
| Degree of Protection | IP20 (Protected against solid bodies > 12.5mm) |
| Pollution Degree | 2 |
| Impact Strength | IK02 |
| Frequency | 50-60 Hz |
| Operating Temperature Range | -25°C to +70°C |
| Storage Temperature Range | -40°C to +70°C |
| Connectable Conductor - Multi-wired | 1.5-25 mm² |
| Connectable Conductor - Solid-core | 1.5-35 mm² |
| Connection Type | Screwed terminal |
| Width | 17.8 mm (1 modular spacing) |
| Height | 94.8 mm |
| Depth | 77.8 mm / 44 mm built-in |
| Color | Grey (RAL 7035) |
| Mounting Method | DIN rail with top and bottom clamps |
| Supply Direction | Top or bottom |
| Halogen Free | Yes |
| Carbon Footprint (Manufacturing) | 0.818 kg CO2 eq. |
| Reference Number | 407668 |
| EAN Code | 3245064076685 |
| Standards Compliance | IEC 60898-1, IEC 60947-2, IEC/EN 60529 |
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