Professional 4-pole circuit breaker with 63A rating, 50kA breaking capacity, C-curve protection, IP20 terminals, and full DX3 compatibility for reliable electrical circuit protection
The Legrand DX3 4-pole modular thermal-magnetic circuit breaker is a professional-grade electrical protection device designed for control, protection, and isolation of electrical circuits in residential and small commercial applications. This robust circuit breaker features a 50kA breaking capacity at 400V, making it suitable for demanding electrical installations. The C-curve characteristic ensures optimal protection with tripping thresholds between 315A and 630A (5-10 times the rated current), providing reliable short-circuit protection. The device is equipped with IP20 finger-safe terminals that comply with IEC/EN 60529 standards, ensuring safe operation in various environments.
This DX3 circuit breaker offers exceptional versatility and compatibility with the complete Legrand DX3 range of auxiliaries, RCD add-on modules, and accessories. The visible breaking mechanism allows for clear status indication through a red/green mechanical indicator displaying open or closed contact positions. The built-in label holder enables convenient circuit identification and management. With a rated voltage of 400V and insulation voltage of 500V, this 4-pole breaker accommodates conductor cross-sections from 1.5mm² to 50mm² (solid-core) or 1.5mm² to 35mm² (multi-wired), making it adaptable to various installation requirements.
The product complies with IEC 60947-2 standards and incorporates environmentally conscious design principles with halogen-free construction. Operating efficiently across a temperature range of -25°C to +70°C, this circuit breaker delivers consistent performance in diverse climatic conditions. The DIN rail mounting system ensures quick and secure installation, while the 6-module width (106.8mm) provides efficient panel space utilization. With a carbon footprint of 6.683 kg CO₂ eq during the manufacturing phase, this device represents a sustainable choice for modern electrical infrastructure.
Key Features
- 50kA breaking capacity at 400V AC for superior short-circuit protection
- C-curve characteristic with 5-10In tripping threshold for optimal circuit protection
- IP20 finger-safe terminals compliant with IEC/EN 60529 standards
- Visible red/green mechanical indicator for clear open/closed status display
- Full compatibility with Legrand DX3 auxiliaries, RCD add-on modules and accessories
- Concurrently switching neutral conductor for enhanced safety
- Label holder for convenient circuit identification and management
- Halogen-free construction for environmental sustainability
- DIN rail mounting system for quick and secure installation
- Operating temperature range -25°C to +70°C for diverse climate conditions
Technical Specifications
| Specification |
Value |
| Product Type | Modular Thermal-Magnetic Circuit Breaker |
| Number of Poles | 4 poles (3 protected + 1 neutral) |
| Rated Current | 63A |
| Release Characteristic | C-curve (5-10 In) |
| Rated Voltage | 400V AC |
| Rated Insulation Voltage (Ui) | 500V |
| Rated Impulse Withstand Voltage (Uimp) | 6kV |
| Breaking Capacity at 230V | 100kA (Icu according to IEC 60947-2) |
| Breaking Capacity at 400V | 50kA (Icu according to IEC 60947-2) |
| Frequency Range | 50-60 Hz |
| Degree of Protection | IP20 (Finger-safe terminals) |
| Degree of Impact Strength | IK02 |
| Built-in Depth | 47mm |
| Module Width | 6 modules (106.8mm) |
| Height | 127.5mm |
| Total Depth | 79.2mm |
| Conductor Cross-Section (Solid-core) | 1.5-50mm² |
| Conductor Cross-Section (Multi-wired) | 1.5-35mm² |
| Connection Type | Screwed terminals with cable entry from top or bottom |
| Operating Temperature Range | -25°C to +70°C |
| Storage Temperature Range | -40°C to +70°C |
| Nominal Voltage Range | 360-440V |
| Pollution Degree | 3 |
| Mounting Method | DIN rail |
| Colour | Grey (RAL 7035) |
| Material Construction | Halogen-free |
| Carbon Footprint (Manufacturing) | 6.683 kg CO₂ eq |
| Concurrent Neutral Switching | Yes |
| Additional Equipment Possible | Yes (DX3 auxiliaries and RCD add-on modules) |
| Reference Number | 410180 |
| EAN Code | 3245064101806 |
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