Professional 4-pole miniature circuit breaker with 10A rating, 4500A breaking capacity, C-curve protection, and advanced current limiting technology for residential and commercial electrical installations.
The Legrand RX3 MCB 4500A is a premium 4-pole miniature circuit breaker designed for residential and small commercial electrical installations. With a rated current of 10A and a breaking capacity of 4500A according to IEC 60898-1 standard, this device provides reliable protection against overcurrent and short-circuit faults. The C-curve characteristic offers a tripping threshold between 50A and 100A (5-10 times the rated current), making it ideal for circuits with moderate inrush currents. This circuit breaker features advanced current limiting technology (Class 3) that minimizes let-through energy, ensuring maximum protection for connected equipment and personnel.
The device is constructed with a fingerproof design (IP20) that protects against solid bodies larger than 12.5mm, ensuring safe operation in various environments. It can be supplied via copper cable or prong busbar from either the top or bottom side, offering flexible installation options. The RX3 MCB operates at a rated voltage of 400V AC with an impulse withstand voltage of 4kV, suitable for standard European electrical networks. Its compact design with DIN rail mounting makes installation straightforward and space-efficient in modern electrical panels.
Complying with all relevant EU directives including RoHS and REACH regulations, this circuit breaker is manufactured using environmentally conscious processes. The halogen-free construction ensures reduced environmental impact and improved safety during potential fire scenarios. With comprehensive technical certifications and agreements (VDE, OC/CB-SE), the Legrand RX3 MCB 4500A guarantees superior reliability, durability, and compliance with international electrical safety standards for professional installations.
Key Features
- Breaking capacity of 4500A according to IEC 60898-1 standard for reliable protection
- C-curve characteristic with tripping threshold between 50A and 100A for moderate inrush currents
- Advanced current limiting technology Class 3 minimizes let-through energy
- Fingerproof design IP20 protection against solid bodies larger than 12.5mm
- Flexible installation with copper cable or prong busbar from top or bottom
- DIN rail mounting for compact and space-efficient panel integration
- Rated voltage 400V AC with 4kV impulse withstand voltage
- Halogen-free environmentally conscious construction
- RoHS and REACH compliant with international certifications
- Concurrently switching neutral conductor for enhanced safety
Technical Specifications
| Specification |
Value |
| Product Type | Miniature Circuit Breaker (MCB) |
| Brand | Legrand |
| Model Series | RX3 |
| Reference Number | 419739 |
| EAN Code | 3414970369321 |
| Number of Poles | 4 poles (4P) |
| Number of Protected Poles | 4 |
| Rated Current | 10 A |
| Rated Voltage | 400 V AC |
| Rated Insulation Voltage (Ui) | 400 V |
| Rated Impulse Withstand Voltage (Uimp) | 4 kV |
| Release Characteristic | C curve |
| Tripping Threshold | 50A to 100A (5-10 In) |
| Breaking Capacity at 230V | 6 kA (Icn and Icu) |
| Breaking Capacity at 400V | 4.5 kA (Icn and Icu) |
| Current Limiting Class | 3 |
| Frequency Range | 50-60 Hz |
| Degree of Protection (IP) | IP20 |
| Degree of Impact Strength (IK) | IK04 |
| Built-in Depth | 44 mm |
| Width | 71.2 mm |
| Height | 88.8 mm |
| Depth | 77.3 mm |
| Width in Modular Spacings | 4 modules |
| Mounting Method | DIN rail |
| Installation Type | Flush-mounted |
| Connection Type | Screwed terminal, Busbar and cable |
| Electric Supply Direction | Top or bottom |
| Nominal Voltage Range | 360-440 V |
| Neutral Conductor Switching | Concurrently switching |
| Pollution Degree | 2 |
| Additional Equipment | Not possible |
| Explosion-proof | No |
| Colour | Grey |
| RAL Number | 7035 |
| Halogen Free | Yes |
| Storage Temperature Range | -25 to 60°C |
| Terminal Marking | No |
| Label Space | No |
| Compliance Standards | IEC 60898-1, IEC 60947-2, IEC/EN 60529, RoHS, REACH |
| Environmental Certification | RoHS Compliant, REACH Declaration, PEP Environmental Profile |
Order Legrand RX3 MCB 4P 10A Curve C Circuit Breaker | 419739 at wholesale prices for companies and factories in Iraq and Middle East, get the best deals on bulk purchases, contact us today.
