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10kA breaking capacity – reliable for commercial installs
weatherproof housing with rear knockouts
Amendment 2 compliant
For related components
Single Module 2 Pole RCBO 40A B Curve WRN40B-030 A Type Time Delay RCD 10kA breaking capacity – reliableThe WRN40B 030 is a 40A Type A RCBO in a compact single module, 2 pole design. It combines residual current (RCD) and overcurrent (MCB) protection in one device, detecting both AC and pulsating DC leakage faults. With a switched neutral built in, this RCBO fully isolates live and neutral conductors during a fault, helping installers meet BS 7671 (18th Edition) compliance while keeping healthy circuits energised. Installer Tip: The 40A B curve RCBO is
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