Premium four-pole thermal-magnetic circuit breaker with 125A capacity, 10kA/16kA breaking capacity, C-curve protection, IP20 finger-safe terminals, and full DX³ compatibility for residential and commercial applications.
The Legrand DX³ MCB DX3 10000A 4 Pole 125A Curve C is a premium four-pole modular thermal-magnetic circuit breaker designed for comprehensive control, protection, and isolation of electrical circuits in residential and small commercial installations. This advanced device operates at 400V~ with an impressive 10kA/16kA breaking capacity, ensuring reliable protection against overloads and short circuits. The breaker features IP20 finger-safe terminals that comply with IEC/EN 60529 standards, providing enhanced safety in environments where accidental contact is a concern.
Engineered with precision and durability in mind, this circuit breaker incorporates a C-curve release characteristic that delivers optimal tripping performance between 5 In and 10 In, making it ideal for circuits with moderate inrush currents. The device is fully compatible with Legrand DX³ auxiliaries, RCD add-on modules, and various accessories, allowing for flexible system configuration and expansion. Its built-in label holder enables clear circuit identification, while the red/green mechanical indicator provides instant visual confirmation of contact status (open or closed).
The DX3 circuit breaker meets rigorous environmental and safety standards, including RoHS compliance and halogen-free construction. With a rated insulation voltage of 500V and impulse withstand voltage of 4kV, this breaker offers exceptional protection against electrical surges and transient overvoltages. Its 6-module width (70.8mm) fits seamlessly into standard DIN rail installations, making it an excellent choice for modern electrical distribution systems requiring reliable, long-term performance.
Key Features
- Four-pole thermal-magnetic circuit breaker with 125A rated current and C-curve release characteristic
- High breaking capacity of 10kA according to IEC 60898-1 and 16kA according to IEC 60947-2 standards
- IP20 finger-safe terminals providing enhanced safety protection against accidental contact
- Compatible with Legrand DX³ auxiliaries, RCD add-on modules, and comprehensive accessories
- Red/green mechanical indicator displaying clear open/closed contact status with integrated label holder
Technical Specifications
| Specification |
Value |
| Product Type | Four-Pole Modular Thermal-Magnetic Circuit Breaker |
| Rated Current | 125A |
| Rated Voltage | 400V AC |
| Release Characteristic | C-Curve (5 In to 10 In) |
| Breaking Capacity IEC 60898 | 10kA at 400V |
| Breaking Capacity IEC 60947-2 | 16kA at 400V / 32kA at 230V |
| Number of Poles | 4 poles (3 protected + neutral) |
| Rated Insulation Voltage | 500V |
| Impulse Withstand Voltage | 4kV |
| Degree of Protection | IP20 (Finger-safe terminals) |
| Operating Temperature Range | -25°C to +70°C |
| Storage Temperature Range | -40°C to +70°C |
| Connectable Conductor Cross Section | 6-70mm² (solid-core) / 6-50mm² (multi-wired) |
| Connection Type | Screwed terminal |
| Module Width | 6 modules (70.8mm) |
| Built-in Depth | 47mm |
| Total Dimensions | 70.8mm (W) × 94.8mm (H) × 77.8mm (D) |
| Mounting Method | DIN rail |
| Colour | Grey (RAL 7035) |
| Impact Strength | IK02 |
| Pollution Degree | 2 |
| Frequency | 50-60 Hz |
| Halogen Free | Yes |
| Supply Direction | Top or bottom |
| Reference Number | 409364 |
| EAN Code | 3245064093644 |
| Carbon Footprint (Manufacturing) | 6.043 kg CO₂ eq. |
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