Single-pole 2A C-curve circuit breaker with 25kA breaking capacity, IP20 finger-safe terminals, and DIN rail mounting for residential and small commercial electrical protection
The Legrand DX3 MCB is a single-pole modular thermal-magnetic circuit breaker designed for control, protection, and isolation of electrical circuits. This high-performance device offers a breaking capacity of 25kA at 230/400V with a C curve characteristic and 2A rated current. The breaker features IP20 finger-safe terminals, ensuring enhanced safety in residential and small commercial installations. Built with visible breaking mechanism for clear status indication, the DX3 provides reliable overcurrent protection with tripping thresholds between 10A and 20A for short-circuit conditions.
The DX3 circuit breaker is engineered for versatile installation options, accepting supply from copper cables, prong busbars, fork busbars, or Legrand HX3 plug busbars. The device is equipped with independent DIN rail clamps on both top and bottom sides, allowing convenient removal without disturbing the main busbar supply. With a label holder for circuit identification and clear ON/OFF indication printed on the handle, this MCB provides excellent visibility and ease of use in any electrical installation.
This product complies with all substance-restriction requirements and has been designed following environmentally conscious manufacturing processes. The DX3 is compatible with Legrand DX3 auxiliaries, RCD add-on modules, and various accessories, making it a flexible solution for modern electrical systems. Suitable for flush-mounted installation on DIN rails with a rated impulse withstand voltage of 4kV, this circuit breaker is ideal for protecting circuits in residential panels and small commercial applications.
Key Features
- 25kA breaking capacity at 230/400V AC with C curve characteristic
- IP20 finger-safe terminals for enhanced electrical safety
- Visible breaking mechanism with clear ON/OFF status indication
- Compatible with Legrand DX3 auxiliaries and RCD add-on modules
- Independent DIN rail clamps for convenient removal without disturbing main busbar
- Label holder for clear circuit identification
- Accepts multiple supply options: copper cables, prong busbars, fork busbars, or HX3 plug busbars
- Environmentally conscious design with halogen-free materials
- 4kV rated impulse withstand voltage
- Operating temperature range -25°C to +70°C
Technical Specifications
| Specification |
Value |
| Product Type | Single-Pole Modular Circuit Breaker (MCB) |
| Rated Current | 2 A |
| Rated Voltage | 230 V AC |
| Breaking Capacity | 25 kA at 230V according to IEC 60947-2 |
| Release Characteristic | C Curve (5-10 times rated current) |
| Insulation Voltage | 500 V |
| Impulse Withstand Voltage | 4 kV |
| Frequency | 50-60 Hz |
| Protection Degree | IP20 (Finger-safe terminals) |
| Impact Strength | IK02 |
| Width | 17.8 mm (1 modular spacing) |
| Height | 94.8 mm |
| Depth | 77.8 mm / Built-in depth 44 mm |
| Mounting Method | DIN Rail (Top and bottom clamps) |
| Conductor Cross Section (Multi-wired) | 1.5-25 mm² |
| Conductor Cross Section (Solid-core) | 1.5-35 mm² |
| Connection Type | Screwed terminal, Busbar and cable |
| Operating Temperature | -25°C to +70°C |
| Storage Temperature | -40°C to +70°C |
| Colour | Grey (RAL 7035) |
| Material | Halogen-free |
| Pollution Degree | 3 |
| Supply Options | Copper cable, prong busbar, fork busbar, or Legrand HX3 plug busbar |
| Compatible Accessories | Legrand DX3 auxiliaries, RCD add-on modules |
| Reference Number | 409752 |
| EAN Code | 3245064097529 |
| Carbon Footprint (Manufacturing) | 1.034 kg CO2 eq. |
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