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ensuring safer maintenance and compliance with BS 7671 (18th Edition)
This compact surge protection unit combines a 2-pole 100A main switch with a pre-wired Type 1+2 SPD
and appliance circuits while leaving spare capacity for future additions
it provides overload and short-circuit protection alongside under/over-voltage monitoring
Time delay (S-Type) – ensures selective tripping in upstream positions
High Immunity Type A Mini RCBO – 40A B Curve (WRB140B-030) Metal Switch Fuse ensuring safer maintenance and complianceThe 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
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