Legrand 402036 RX3 RCCB 25A 2-Pole 30mA Type A 230V AC 2 Module

In residential and commercial electrical installations, residual current protection is non-negotiable for personal safety. The Legrand 402036 RX3 residual current circuit breaker (RCCB) is a 2-pole, 25 A device with a 30 mA trip sensitivity, designed for 230 V AC circuits. It detects leakage currents and disconnects the supply within milliseconds, preventing electric shock and reducing fire risk. This Type A RCCB is suitable for circuits with electronic loads that may produce pulsating DC residual currents. Its compact 2-module width fits standard DIN rails, making it ideal for distribution boards in homes, offices, and light industrial settings.

Key specifications

• Number of poles: 2
• Rated current (In): 25 A
• Rated residual operating current (IΔn): 30 mA
• Residual current type: A
• Rated voltage: 230 V AC
• Frequency: 50/60 Hz
• Short-circuit breaking capacity: 6 kA
• Mounting: DIN rail
• Module width: 2 modules
• Connection capacity: 1.5–25 mm² rigid, 1.5–16 mm² flexible
• Degree of protection: IP20 terminals, IP40 front face in enclosure
• Operating temperature: -25°C to +60°C
• Standards: IEC/EN 61008-1
• Electrical endurance: 10,000 cycles
• Mechanical endurance: 20,000 cycles
• Test button: Yes

Why choose it

The Legrand RX3 series is known for reliability and ease of installation. This RCCB offers a high 6 kA breaking capacity, ensuring robust performance even under short-circuit conditions. The Type A detection handles both AC and pulsating DC residual currents, making it future-proof for modern electronic loads. The test button allows regular functional checks, and the clear contact position indicator enhances safety during maintenance.

Ideal use cases

• Protection of socket outlet circuits in residential buildings
• Distribution boards in commercial spaces with electronic equipment
• Supplementary protection for specific circuits such as washing machines or water heaters
• Retrofit installations where additional RCD protection is required

Good to know

The device complies with IEC/EN 61008-1, ensuring international safety standards. It is designed for use in ambient temperatures from -25°C to +60°C, suitable for most indoor installations. Always verify local wiring regulations and ensure installation by a qualified electrician. The RCCB does not provide overcurrent protection; pair with appropriate MCBs for complete circuit protection.