Premium 4-pole modular circuit breaker with 36kA breaking capacity, 20A C-curve rating, IP20 finger-safe terminals, and visible breaking indicator for reliable electrical circuit protection
The Legrand DX3 4 Pole 20A Curve C Circuit Breaker is a premium modular thermal-magnetic circuit breaker designed for control, protection, and isolation of electrical circuits. This advanced device features a 36kA breaking capacity at 400V AC and delivers reliable performance with a C curve tripping characteristic. The breaker is equipped with visible breaking for easy status verification and IP20 finger-safe terminals for enhanced safety. Built with copper cable connectivity options (top or bottom supply), this circuit breaker is ideal for residential and small commercial panel installations where precise circuit protection is essential.
This four-pole breaker offers exceptional reliability with a tripping threshold between 100A and 200A for short-circuit protection, ensuring your electrical systems are safeguarded against dangerous fault conditions. The device features a red/green mechanical indicator that clearly displays the open or closed status of contacts, providing immediate visual confirmation of circuit status. The label holder allows for clear circuit identification, making maintenance and troubleshooting significantly easier. With a built-in depth of 47mm and modular spacing of 6 units, it fits seamlessly into standard DIN rail installations.
The DX3 breaker complies with IEC 60947-2 standards and includes environmental certifications demonstrating Legrand's commitment to sustainable manufacturing. It can be equipped with Legrand DX3 auxiliaries, RCD add-on modules, and various accessories to expand functionality. The device is halogen-free and has been designed with environmental consciousness. Operating across a wide temperature range from -25°C to 70°C, this circuit breaker maintains consistent performance in diverse environmental conditions. Installation should be performed by qualified electricians in compliance with local electrical codes and regulations.
Key Features
- 36kA breaking capacity at 400V AC with IEC 60947-2 compliance
- C-curve tripping characteristic (100A-200A short-circuit threshold)
- IP20 finger-safe terminals protecting against solid bodies larger than 12.5mm
- Red/green mechanical indicator displaying open/closed contact status
- Compatible with Legrand DX3 auxiliaries, RCD add-on modules and accessories
- Visible breaking mechanism for easy circuit status verification
- Label holder for clear circuit identification and maintenance
- Halogen-free and environmentally conscious design
- Top or bottom copper cable supply connectivity options
- Wide operating temperature range from -25°C to 70°C
Technical Specifications
| Specification |
Value |
| Product Type | Modular Thermal-Magnetic Circuit Breaker |
| Number of Poles | 4 poles |
| Rated Current | 20 Amperes |
| Tripping Curve | C curve (100A-200A threshold) |
| Breaking Capacity at 400V | 36 kA (Icu) |
| Breaking Capacity at 230V | 72 kA (Icu) |
| Rated Voltage | 400V AC |
| Rated Insulation Voltage | 500V |
| Rated Impulse Withstand Voltage | 6 kV |
| Frequency Range | 50-60 Hz |
| Degree of Protection | IP20 (Finger-safe) |
| Built-in Depth | 47 mm |
| Modular Width | 6 modular spacings (106.8 mm) |
| Height | 127.5 mm |
| Total Depth | 79.2 mm |
| Operating Temperature Range | -25°C to 70°C |
| Storage Temperature Range | -40°C to 70°C |
| Nominal Voltage Range | 360-440V |
| Connectable Conductor Cross Section (Solid) | 1.5-50 mm² |
| Connectable Conductor Cross Section (Multi-wired) | 1.5-35 mm² |
| Connection Type | Screwed terminal, Cable |
| Supply Direction | Top or bottom |
| Mounting Method | DIN rail |
| Pollution Degree | 3 |
| Impact Strength Rating | IK02 |
| Color | Grey (RAL 7035) |
| Halogen Free | Yes |
| Concurrent Switching of Neutral | Yes |
| Additional Equipment Possible | Yes |
| Carbon Footprint (Manufacturing) | 6.590 kg CO₂ eq. |
| Standards Compliance | IEC 60947-2, IEC/EN 60529 |
| Reference Number | 410035 |
| EAN Code | 3245064100359 |
| Warranty | Legrand standard product warranty |
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