Premium 3-pole 10A thermal-magnetic circuit breaker with 36kA short-circuit capacity, C curve protection, IP20 safety rating, and full compatibility with Legrand DX3 system accessories.
The Legrand DX3 three-pole modular thermal-magnetic circuit breaker is a premium electrical protection device designed for residential and small commercial installations. This advanced circuit breaker features a fully visible breaking mechanism that delivers an impressive 36kA short-circuit capacity at 400V, ensuring reliable protection and isolation for your electrical systems. The device incorporates a C curve tripping characteristic with a 10A rated current, providing optimal protection against overcurrent conditions with a tripping threshold between 50A and 100A (5 to 10 times the rated current).
Designed with safety and convenience in mind, the DX3 circuit breaker features an IP20 finger-safe design that protects against solid bodies larger than 12.5mm, making it ideal for environments where accidental contact is a concern. The red/green mechanical indicator clearly displays the status of the contacts, showing whether the circuit is open or closed at a glance. The device includes a convenient label holder for clear and visible circuit identification. With a built-in depth of 47mm and a width of 80.1mm, it fits seamlessly into standard DIN rail installations.
This circuit breaker is fully compatible with Legrand DX3 auxiliaries, RCD add-on modules, and various accessories, allowing for flexible system configurations. It can be supplied by copper cable from either the top or bottom, and with an optional terminal accessory, it can also accommodate aluminum cables. The device operates across a wide ambient temperature range from -25°C to 70°C and maintains its functionality at frequencies between 50-60Hz. All components are halogen-free and designed with environmental consciousness, meeting modern sustainability standards and compliance requirements.
Key Features
- 36kA short-circuit breaking capacity at 400V for maximum protection
- C curve tripping characteristic with 10A rated current for optimal overcurrent protection
- IP20 finger-safe design protecting against solid bodies larger than 12.5mm
- Red/green mechanical indicator displaying circuit status clearly
- Fully compatible with Legrand DX3 auxiliaries and RCD add-on modules
- Accepts copper or aluminum cables with optional terminal accessories
- Wide operating temperature range from -25°C to 70°C
- Halogen-free and environmentally conscious design
- DIN rail mounting with 4.5 module width spacing
- Convenient label holder for circuit identification
Technical Specifications
| Specification |
Value |
| Product Type | Modular Thermal-Magnetic Circuit Breaker |
| Number of Poles | 3 poles (3 protected poles) |
| Rated Current | 10A |
| Tripping Characteristic | C curve (50A-100A tripping threshold) |
| Rated Voltage | 400V AC |
| Rated Insulation Voltage | 500V |
| Rated Impulse Withstand Voltage | 6kV |
| Short-Circuit Breaking Capacity at 230V | 72kA |
| Short-Circuit Breaking Capacity at 400V | 36kA (IEC 60947-2) |
| Frequency Range | 50-60Hz |
| Degree of Protection | IP20 (Finger-safe) |
| Impact Strength Rating | IK02 |
| Built-in Depth | 47mm |
| Width | 80.1mm (4.5 module spacing) |
| Height | 127.5mm |
| Total Depth | 79.2mm |
| Operating Temperature Range | -25°C to 70°C |
| Storage Temperature Range | -40°C to 70°C |
| Connectable Conductor Cross-Section (Solid) | 1.5-50mm² |
| Connectable Conductor Cross-Section (Multi-wired) | 1.5-35mm² |
| Connection Type | Screwed terminal with top or bottom cable supply |
| Mounting Method | DIN rail |
| Color | Grey (RAL 7035) |
| Halogen Free | Yes |
| Pollution Degree | 3 |
| Additional Equipment | Compatible with DX3 auxiliaries and RCD modules |
| Mechanical Indicator | Red/Green status display |
| Label Space | Yes |
| Reference Number | 410020 |
| EAN Code | 3245064100205 |
| Carbon Footprint (Manufacturing) | 5.436 kg CO2 eq. |
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