Premium 4-pole 40A miniature circuit breaker with 4500A breaking capacity, C-curve protection, and IP20 rating for residential and commercial installations
The Legrand RX3 MCB (Miniature Circuit Breaker) is a 4-pole, 40A rated current device designed for residential and small commercial electrical installations. This circuit breaker features a breaking capacity of 4500A according to IEC 60898-1 standard, making it highly reliable for household protection. The C-curve tripping characteristic provides a tripping threshold between 200A and 400A (5 In to 10 In), offering optimal protection against short-circuits while minimizing nuisance trips from inrush currents. The device can be supplied by either copper cable or prong busbar from the top or bottom side, providing flexible installation options.
This RX3 circuit breaker is protected against solid bodies larger than 12.5mm with an IP20 rating according to IEC/EN 60529 standard, ensuring safety and durability. It achieves the maximum level of limitation of let-through energy with energy limitation class 3 according to IEC 60898-1 standard. The device features a grey color (RAL 7035) and includes advanced technical specifications including 400V rated voltage, 4 kV impulse withstand voltage, and 50-60 Hz frequency compatibility. It is halogen-free and complies with all substance-restriction requirements, designed with environmental consciousness in mind.
With a built-in depth of 44mm, width of 71.2mm, and height of 88.8mm, this DIN rail-mounted breaker fits standard electrical panels. The RX3 features concurrent switching of the neutral conductor and is suitable for flush-mounted installations. The terminal connection type supports both screwed terminals and busbar connections, making it adaptable to various installation scenarios. This product is certified to meet multiple international standards and agreements, ensuring compliance with electrical safety regulations across different regions.
Key Features
- 4500A breaking capacity per IEC 60898-1 standard for household installations
- C-curve tripping characteristic with 200-400A threshold for optimal short-circuit protection
- IP20 protection rating against solid bodies larger than 12.5mm
- Maximum energy limitation class 3 for superior fault current limitation
- Flexible supply options via copper cable or prong busbar from top or bottom
- Halogen-free and environmentally conscious design
- Concurrent switching neutral conductor for enhanced safety
- DIN rail mounted with 4-modular spacing width
- 4 kV impulse withstand voltage rating
- Certified compliance with international electrical safety standards
Technical Specifications
| Specification |
Value |
| Product Type | Miniature Circuit Breaker (MCB) |
| Number of Poles | 4 poles |
| Rated Current | 40 Amperes |
| Rated Voltage | 400 V AC |
| Breaking Capacity (Icn) | 4.5 kA at 400V / 6 kA at 230V |
| Trip Characteristic | C-Curve (200-400A threshold) |
| Current Limiting Class | Class 3 |
| Impulse Withstand Voltage | 4 kV |
| Frequency Range | 50-60 Hz |
| Protection Degree (IP) | IP20 |
| Impact Strength Degree (IK) | IK04 |
| Built-in Depth | 44 mm |
| Width | 71.2 mm |
| Height | 88.8 mm |
| Modular Width | 4 modular spacings |
| Color | Grey (RAL 7035) |
| Connection Type | Screwed terminal, Busbar and cable |
| Supply Direction | Top or bottom |
| Mounting Method | DIN rail |
| Neutral Conductor | Concurrently switching |
| Installation Type | Flush-mounted |
| Storage Temperature Range | -25 to +60°C |
| Nominal Voltage Range | 360-440 V |
| Halogen Free | Yes |
| Pollution Degree | 2 |
| Manufacturer | Legrand |
| Product Reference | 419745 |
| EAN Code | 3414970369420 |
Order Legrand RX3 MCB 4P 40A Curve C Circuit Breaker | 419745 at wholesale prices for companies and factories in Iraq and Middle East, get the best deals on bulk purchases, contact us today.
