Even if your fusebox is relatively new, upgrading RCDs to Type A can provide enhanced protection, especially for certain circuits like those supplying sockets outdoors or in bathrooms. It is worth considering the upgrade for improved safety and compliance with current standards.

BS7671, the UK wiring regulations, now recommend the use of Type A RCDs (Residual Current Devices) over Type AC RCDs due to their increased sensitivity to alternating currents, including pulsating DC components. This change ensures better protection against various electrical faults, including those involving electronic and variable speed drives that may not be adequately detected by Type AC RCDs.

Even if your fusebox is relatively new, upgrading RCDs to Type A can provide enhanced protection, especially for certain circuits like those supplying sockets outdoors or in bathrooms. It is worth considering the upgrade for improved safety and compliance with current standards.