Legrand DX3 thermal magnetic circuit-breaker with 2-pole, 10A C-curve, 16kA breaking capacity at 230V. Protects wiring installations against overloads and short-circuits with IP20 protection and DIN rail mounting.
The Legrand DX3 MCB 10000A is a thermal magnetic circuit-breaker designed to protect wiring installations against overloads and short-circuits. With a 2-pole configuration, 10A rated current, and C-curve release characteristic, this device provides reliable protection with a 16kA breaking capacity at 230V and 10kA at 400V. The circuit breaker ensures high fault clearance and allows convenient control and isolation of electrical circuits. It features a built-in depth of 44mm and is compatible with DIN rail mounting systems, making it ideal for residential and small commercial electrical panels.
This MCB is equipped with advanced safety features including a current limiting class 3 rating, IP20 degree of protection against solid bodies larger than 12.5mm, and halogen-free construction for environmental compliance. The device can be supplied by copper cable, prong busbar, fork busbar, or Legrand HX3 plug busbar connections. It supports connectable conductor cross-sections from 1.5-25mm² for multi-wired cables and 1.5-35mm² for solid-core conductors. The tripping threshold in case of short-circuit ranges between 50A and 100A, providing optimal protection with C-curve characteristics between 5 In and 10 In.
The Legrand DX3 MCB is compatible with Legrand DX3 auxiliaries, RCD add-on modules, and various accessories for enhanced functionality. It operates at rated voltage of 400V with rated insulation voltage Ui of 500V and rated impulse withstand voltage Uimp of 4kV. The device complies with IEC 60898-1 standard for household installations and features a grey color (RAL 7035) with label holder for clear circuit identification. Operating temperature range is -25 to 70°C, with storage temperature capability from -40 to 70°C.
Key Features
- Breaking capacity 10000A according to IEC 60898-1 standard for household installations
- 2-pole configuration with 10A rated current and C-curve release characteristic
- 16kA breaking capacity at 230V and 10kA at 400V for superior fault clearance
- IP20 degree of protection against solid bodies larger than 12.5mm (fingerproof)
- Current limiting class 3 with maximum energy limitation capability
- Compatible with Legrand DX3 auxiliaries, RCD add-on modules and accessories
- DIN rail mounting with independent removal capability
- Halogen-free construction for environmental compliance
- Label holder for clear circuit identification
- Rated voltage 400V with impulse withstand voltage Uimp of 4kV
Technical Specifications
| Specification |
Value |
| Product Type | Thermal Magnetic Circuit-Breaker (MCB) |
| Breaking Capacity | 16 kA at 230V, 10 kA at 400V |
| Number of Poles | 2 poles |
| Rated Current | 10 A |
| Release Characteristic | C curve (5 In to 10 In) |
| Rated Voltage | 400 V AC |
| Rated Insulation Voltage Ui | 500 V |
| Impulse Withstand Voltage Uimp | 4 kV |
| Frequency | 50-60 Hz |
| Current Limiting Class | Class 3 |
| Degree of Protection | IP20 |
| Built-in Depth | 44 mm |
| Width | 35.4 mm |
| Height | 94.8 mm |
| Total Depth | 77.8 mm |
| Modular Width | 2 modular spacings |
| Degree of Impact Strength | IK02 |
| Connectable Conductor Cross-Section (Multi-wired) | 1.5-25 mm² |
| Connectable Conductor Cross-Section (Solid-core) | 1.5-35 mm² |
| Connection Type | Screwed terminal |
| Electric Supplying Direction | By the top or bottom |
| Mounting Method | DIN rail |
| Operating Temperature Range | -25 to 70°C |
| Storage Temperature Range | -40 to 70°C |
| Colour | Grey (RAL 7035) |
| Halogen Free | Yes |
| Pollution Degree | 2 |
| Flush-mounted Installation | Yes |
| Concurrently Switching Neutral Conductor | No |
| Additional Equipment Possible | Yes |
| Reference Number | 409200 |
| EAN Code | 3245064092005 |
| Carbon Footprint (Manufacturing) | 1.784 kg CO₂ eq. |
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