Masterplug plug-in RCD adaptor

Why this one

A plug-through adaptor that adds protection when used as instructed. Buyers often find it simple to use. Check that its RCD type suits the equipment.

What was found

What owners report

Buyers often describe easy operation and replacing older units that served for years. These reports do not test its protection. Some reviews describe uses that need their own electrical assessment.

Owner reports, source 1

Specifications

Exact adaptor: ARCDKG-XD, UK/Irish plug-through socket, 13 A maximum. One Type AC 30 mA RCD. IP20 for dry indoor use.Source: [1]
After a power cut: Active, non-latching operation. Reset after power is interrupted. Maximum load 3120 W.Source: [2]

Limits and cautions

Test before every use. If the test fails or it trips repeatedly, stop and get advice.
This is Type AC. Ask an electrician whether that type suits your tools or appliances, especially equipment with electronic controls.
Keep the adaptor indoors and dry. Do not use it as an EV charging adaptor or a substitute for safe wiring.

Sources and dates

Numbered specification sources are linked alongside each value. Shop prices carry their own check and expiry dates.