Single Module 2 Pole RCBO 20A B Curve WRN20B-030 Plastic Garage Units The dual-handle RCBO speeds up

The dual-handle RCBO speeds up diagnostics

heat pump and PV circuits

4 Pole A-Type RCD – full disconnection of line + neutral

short-circuit and earth-leakage protection in line with 18th Edition Amendment 2 requirements (30 mA AC + 6 mA DC detection)

Single Module 2 Pole RCBO 20A B Curve WRN20B-030 Plastic Garage Units The dual-handle RCBO speeds upThe WRN20B 030 is a 20A Type A RCBO in a single module, 2 pole design providing both residual current (RCD) and overcurrent (MCB) protection in one compact device. It detects AC and pulsating DC leakage currents, making it suitable for modern domestic and commercial installations. With a built in switched neutral, this RCBO ensures full circuit isolation on fault while keeping healthy circuits in service. Installer Tip: For socket circuits and small