Brisbane’s storm season brings its fair share of blackouts, and more homeowners are turning to backup generators to keep the essentials running. But plugging a generator into your home safely requires one critical piece of equipment: a changeover switch. Here’s why it matters and what’s involved.
What is a generator changeover switch?
A changeover switch (also called a transfer switch) safely connects a portable or standby generator to your home’s electrical system. It isolates your house from the main grid while the generator is running, then switches back when mains power returns — all through one properly wired, compliant connection.
Why you must never skip it
Running a generator into your home without a proper changeover switch — for example, through an extension lead or a homemade connection — is extremely dangerous and illegal. It can cause back-feed, where electricity flows back into the grid and can electrocute power line workers, as well as damaging your appliances and the generator when mains power returns. A changeover switch eliminates this risk entirely.
How it works
When the power goes out, you start your generator and flip the changeover switch from ‘mains’ to ‘generator’. Your selected circuits — typically essentials like the fridge, lights, and power points — run off the generator. When mains power is restored, you simply switch back. It’s safe, simple, and designed for exactly this purpose.
How much does a changeover switch cost in Brisbane?
The cost depends on the size of your switchboard, the number of circuits you want backed up, and whether any switchboard work is needed to accommodate it. A licensed electrician will assess your board and give you a fixed quote — it’s a one-off investment that pays for itself the first time a storm knocks out your power.
Licensed installation is essential
A changeover switch must be installed by a licensed electrician and integrated correctly with your switchboard. Done properly, it gives you safe, reliable backup power for years. Integrated Trade Services installs generator changeover switches across Brisbane — ideal to sort before storm season hits. See our electrical services or call 0400 775 002.