RCD safety switches are the single most important electrical safety device in your home. We install, test and upgrade them to QLD compliance.
An RCD safety switch (Residual Current Device) detects tiny earth-leakage currents — the kind that happen when a person touches a live wire — and cuts power within milliseconds, before the current causes serious injury. It's the difference between a shock and a fatality. Ultralec installs and tests RCD safety switches across Pomona, Cooroy, Noosa, Tewantin, Eumundi, Gympie.
Queensland legislation requires RCD safety switches on final subcircuits in residential properties. Older homes with just one RCD (or none at all) don't meet current standards — and won't pass pre-sale or rental inspections without being brought up to code.
RCDs should be tested every 3–6 months using the built-in test button. Many people never touch them. Scheduled annual testing by a qualified electrician catches failed or weakening RCDs before they stop protecting you. We offer RCD testing as part of scheduled maintenance visits.