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Hi there. Please ask us anything about rewiring your home below, or you can go back to the house rewire page.
RCD main switches always have a test button. They are not always as obvious as this one. Sometimes, much smaller and round or oval. The main thing to bear in mind is RCDs can switch the electrical installation off when they serve as a main switch.
This main switch will only go to the off or on position when someone moves the lever up (on) or down (off).
