High Immunity Type A Mini RCBO – 40A B Curve (WRB140B-030) Metal Switch Fuse This compact surge protection unit

This compact surge protection unit combines a 2-pole 100A main switch with a pre-wired Type 1+2 SPD

With switched live and neutral disconnection for full circuit isolation

and high inrush commercial circuits

and EV-compliant

Installer Tip: The 63A C Curve is the largest in the C Curve range

High Immunity Type A Mini RCBO – 40A B Curve (WRB140B-030) Metal Switch Fuse This compact surge protection unitThe WRB140B 030 High Immunity Type A Mini RCBO is a 40A B Curve protective device for residential and commercial circuits requiring higher current handling. At just 18mm wide, it combines overload, short circuit, and residual current protection in a single compact module. With 30mA Type A sensitivity and a high immunity build, it ensures safe and stable protection for EV chargers, socket outlets, and fixed appliance circuits in line with 18th Edition