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Single Module 2 Pole RCBO 40A B Curve WRN40B-030
Availability: 0 left in stock
SKU: WRN40B-030

£18.65

The 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...

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Description Reviews FAQSs Technical Specs Installation Notes

The 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 often used for high-load subcircuits and small distribution boards where both overload and earth leakage protection must be combined into one device.

  • 40A B-Curve RCBO: Suited to high-load domestic and commercial circuits
  • Type A protection: Trips on AC and pulsating DC residual currents
  • Compact single-module design: Saves board space
  • 2-pole with switched neutral: Disconnects both conductors during faults
  • Minimises disruption: Isolates only the faulty circuit
  • 18th Edition compliant: BS 7671 Amendment 2 ready

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