Legrand RX3 2-pole 25A C-curve MCB with 4500A breaking capacity, ideal for residential and small commercial installations with advanced current-limiting protection.
The Legrand RX3 MCB (Miniature Circuit Breaker) is a high-performance 2-pole circuit breaker designed for residential and small commercial electrical installations. With a rated current of 25A and a breaking capacity of 4500A according to IEC 60898-1 standard, this device provides reliable protection against overcurrent and short-circuit faults. The breaker features a C-curve characteristic with a tripping threshold between 125A and 250A (5-10 times the rated current), making it ideal for circuits with moderate inrush currents typical in lighting and general-purpose loads.
This circuit breaker is engineered with advanced current-limiting technology (Class 3 energy limitation) that minimizes let-through energy during fault conditions, ensuring maximum protection for connected equipment. The device offers IP20 protection against solid bodies larger than 12.5mm, classified as 'fingerproof' according to IEC/EN 60529 standards. It can be supplied via copper cable or prong busbar from either the top or bottom, providing flexible installation options in DIN rail-mounted distribution panels.
The RX3 breaker is manufactured with environmental consciousness, complying with all substance-restriction requirements including RoHS and REACH directives. Its grey color (RAL 7035) and compact dimensions (34.6mm width, 88.8mm height, 77.3mm depth) make it suitable for modern electrical installations. The product carries multiple international certifications including CEBEC, VDE, and CB scheme approvals, demonstrating its compliance with stringent safety and performance standards.
Key Features
- Breaking capacity of 4500A according to IEC 60898-1 standard for household and small commercial installations
- C-curve characteristic with tripping threshold between 125A-250A (5-10 times rated current) for moderate inrush current loads
- Advanced current-limiting technology (Class 3 energy limitation) minimizes let-through energy during faults
- IP20 fingerproof protection against solid bodies larger than 12.5mm per IEC/EN 60529 standard
- Flexible supply options via copper cable or prong busbar from top or bottom mounting positions
- DIN rail mounting with compact dimensions (34.6mm width, 2-module spacing)
- Halogen-free, environmentally conscious design compliant with RoHS and REACH directives
- International certifications including CEBEC, VDE, and CB scheme approvals
- Rated impulse withstand voltage of 4kV with pollution degree 2 rating
- Grey color (RAL 7035) with rated voltage 400V AC for 50-60Hz operation
Technical Specifications
| Specification |
Value |
| Product Type | Miniature Circuit Breaker (MCB) |
| Manufacturer | Legrand |
| Model Series | RX3 |
| Reference Number | 419699 |
| EAN Code | 3414970368836 |
| Number of Poles | 2 poles (2P) |
| Protected Poles | 2 |
| Rated Current | 25 Amperes (A) |
| Release Characteristic | C-curve |
| Tripping Threshold | 125A to 250A (5-10 times rated current) |
| Rated Voltage | 400 Volts (V) AC |
| Rated Insulation Voltage | 400V |
| Rated Impulse Withstand Voltage | 4 kV |
| Breaking Capacity (Icn) at 230V | 6 kA per IEC 60898 |
| Breaking Capacity (Icn) at 400V | 4.5 kA per IEC 60898 |
| Breaking Capacity (Icu) at 230V | 6 kA per IEC 60947-2 |
| Breaking Capacity (Icu) at 400V | 4.5 kA per IEC 60947-2 |
| Current Limiting Class | Class 3 (Maximum energy limitation) |
| Frequency Range | 50-60 Hz |
| Nominal Voltage Range | 360-440V |
| Degree of Protection | IP20 (Fingerproof) |
| Degree of Impact Strength | IK04 |
| Pollution Degree | 2 |
| Built-in Depth | 44 mm |
| Width | 34.6 mm |
| Height | 88.8 mm |
| Depth | 77.3 mm |
| Module Width | 2 modular spacings |
| Color | Grey (RAL 7035) |
| Mounting Method | DIN rail (Top-hat rail) |
| Flush-mounted Installation | Yes |
| Connection Type | Screwed terminal, Busbar and cable |
| Electric Supply Direction | By the top or bottom |
| Neutral Conductor Switching | No (Does not switch neutral) |
| Additional Equipment | Not possible |
| Halogen Free | Yes |
| Terminal Marking | No |
| Label Space | No |
| Storage Temperature Range | -25 to +60°C |
| Explosion-proof | No |
| Standards Compliance | IEC 60898-1, IEC 60947-2, IEC/EN 60529 |
| Certifications | CEBEC, VDE, CB scheme |
| Environmental Compliance | RoHS Directive, REACH Declaration |
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