Thermal magnetic 2-pole 50A circuit-breaker with 16kA breaking capacity at 230V, B curve protection, IP20 rating, and DIN rail mounting for reliable residential and commercial electrical protection.
The Legrand DX3 MCB 2P 50A Curve B is a thermal magnetic circuit-breaker designed to protect wiring installations against overloads and short-circuits. This device features a 16kA breaking capacity at 230V and 10kA at 400V, making it ideal for residential and small commercial applications. The 2-pole configuration with 50A rated current and B curve characteristic provides reliable protection with a tripping threshold between 150A and 250A for short-circuit conditions.
This circuit-breaker is equipped with IP20 protection rating, ensuring fingerproof safety against solid bodies larger than 12.5mm. The device features DIN rail mounting with two independent clamps allowing convenient removal without disturbing the main busbar supply. It can be supplied via copper cable, prong busbar, fork busbar, or Legrand HX3 plug busbar from either top or bottom connections.
The DX3 MCB is fully compatible with Legrand DX3 auxiliaries, RCD add-on modules, and various accessories. With a built-in label holder for circuit identification and clear ON/OFF indication on the handle, this device ensures easy status recognition. The product complies with IEC 60898-1 standard, achieves energy limitation class 3, and meets all substance-restriction requirements with halogen-free construction for environmental consciousness.
Key Features
- Breaking capacity of 16kA at 230V and 10kA at 400V per IEC 60898-1 standard
- B curve characteristic with tripping threshold between 150A and 250A for short-circuit protection
- IP20 protection rating ensuring fingerproof safety against solid bodies larger than 12.5mm
- DIN rail mounting with dual independent clamps for convenient removal without disturbing main supply
- Compatible with Legrand DX3 auxiliaries, RCD add-on modules, and comprehensive accessories
- Built-in label holder for clear circuit identification with ON/OFF indication on handle
- Energy limitation class 3 for maximum let-through energy limitation
- Flexible supply options via copper cable, prong busbar, fork busbar, or HX3 plug busbar
- Halogen-free construction meeting environmental and substance-restriction requirements
- Rated for 50-60Hz operation with -25°C to +70°C ambient temperature range
Technical Specifications
| Specification |
Value |
| Product Type | Thermal Magnetic Circuit-Breaker |
| Number of Poles | 2 (2P) |
| Rated Current | 50 A |
| Release Characteristic | B Curve |
| Breaking Capacity at 230V | 16 kA (Icn) |
| Breaking Capacity at 400V | 10 kA (Icn) |
| Rated Voltage | 400 V AC |
| Rated Insulation Voltage | 500 V |
| Rated Impulse Withstand Voltage | 4 kV |
| Frequency Range | 50-60 Hz |
| Current Limiting Class | 3 |
| Degree of Protection | IP20 |
| Mounting Method | DIN Rail |
| Width | 35.4 mm |
| Height | 94.8 mm |
| Depth | 77.8 mm |
| Built-in Depth | 44 mm |
| Modular Width | 2 modules |
| Degree of Impact Strength | IK02 |
| Connection Type | Screwed Terminal |
| Connectable Conductor Cross-Section (Solid) | 1.5-35 mm² |
| Connectable Conductor Cross-Section (Multi-wired) | 1.5-25 mm² |
| Operating Temperature Range | -25°C to +70°C |
| Storage Temperature Range | -40°C to +70°C |
| Supply Direction | Top or Bottom |
| Colour | Grey (RAL 7035) |
| Halogen Free | Yes |
| Pollution Degree | 2 |
| Flush-mounted Installation | Yes |
| Concurrently Switching Neutral | No |
| Additional Equipment Possible | Yes |
| Reference Number | 408947 |
| EAN Code | 3245064089470 |
| Tripping Threshold (Short-circuit) | 150A-250A (3In-5In) |
| Standard Compliance | IEC 60898-1, IEC 60947-2 |
| Carbon Footprint (Manufacturing) | 1.905 kg CO₂ eq. |
Order Legrand DX3 MCB 2P 50A Curve B Circuit Breaker | 408947 at wholesale prices for companies and factories in Iraq and Middle East, get the best deals on bulk purchases, contact us today.
