Safety switches (RCDs) in Victoria: what the rules say for homes and rentals

We install, test and replace safety switches across Melbourne in houses, units, rentals, shops and offices. Where this guide talks about rules, we have linked the official source from Energy Safe Victoria or Consumer Affairs Victoria, so you can read it for yourself.

What a safety switch actually does

A safety switch, properly called a residual current device or RCD, watches the current flowing out along a circuit and the current coming back. When the two do not match, some of the electricity is leaking somewhere it should not, which could be through a damaged appliance, water in a light fitting, or a person. Energy Safe Victoria explains that when a safety switch detects a problem it cuts the power within milliseconds. It only protects you if it is working correctly and connected to the circuit with the fault.

You will hear a few names for the same idea:

• RCD or RCCB. A safety switch on its own. It is usually paired with circuit breakers, and one unit may protect several circuits.
• RCBO. A safety switch and a circuit breaker combined in one unit, protecting a single circuit.

Consumer Affairs Victoria lists all three (RCD, RCCB and RCBO) as electrical safety switches for the rental standard.

Safety switch vs circuit breaker: why you need both

A circuit breaker protects the wiring. It trips when a circuit draws too much current or shorts out, so cables do not overheat. It is not designed to protect a person from an electric shock, because the current that can hurt you is much smaller than the current that trips a breaker.

A safety switch protects people. It reacts to a small leak to earth that a breaker would ignore. That is why a modern switchboard has both, and why an old board with only fuses or breakers is missing the most important layer of protection. On a lot of older Melbourne boards, a single safety switch covers every power circuit, so one fault anywhere takes out half the house. Splitting circuits across more safety switches, or moving to RCBOs, means a fault only takes out the circuit it is on.

What the rules say for rental properties

This is where Victoria has a clear, specific rule. Consumer Affairs Victoria's rental minimum standards include an electrical safety standard that started on 29 March 2023. Rental properties must have modern switchboards, with circuit breakers and electrical safety switches installed, and rental providers are responsible for engaging an electrician to make sure the property complies.

• If the board already has circuit breakers, Consumer Affairs Victoria says the property can meet the standard by adding circuit breaker and safety switch protection to the power outlet and lighting circuits, without changing the protection on other circuits such as fixed cooking equipment, hot water or air conditioning. Energy Safe Victoria's inspection and testing FAQ says the same thing.
• If the board is an old fuse board, such as a panel and fuse board or a federal fuse board, Consumer Affairs Victoria explains the electrician may not be able to add components and may have to replace the whole switchboard. In that case every circuit at the board needs circuit breaker protection, including cooking, hot water and air conditioning circuits.

The minimum standards apply to rental agreements that started on or after 29 March 2021, and to older agreements that became periodic on or after that date. Rental providers must make sure a property meets the standards before it is advertised and before the renter moves in, and from 13 October 2026 they must keep records showing it met the standards. Consumer Affairs Victoria also reminds rental providers that they can ask the electrician questions and get a second opinion if unsure.

Separately, Energy Safe's FAQ notes that rental providers must have an electrical safety check of the installation done every two years. Our rental electrical safety check guide covers that check in detail, and our rental safety checks page explains how we do it for landlords and property managers.

What about owner-occupied homes?

The rental standard does not apply to a home you live in yourself. Energy Safe Victoria's advice for every home is still the same: get old electrical wiring inspected and install safety switches. If you are not sure whether you have one, Energy Safe suggests contacting a registered electrical contractor to check.

There is also a rule that catches many homeowners during a renovation. Energy Safe's FAQ points to the Wiring Rules (AS/NZS 3000), which say that when a switchboard is replaced, safety switch protection is needed on all final sub-circuits. The clause Energy Safe cites is titled "Alterations to installations and replacement of switchboards", so new circuits added during a renovation usually bring safety switch protection with them. If you are planning a kitchen, an extension or an induction cooktop, safety switches usually come into the conversation anyway. Our kitchen renovation guide explains why.

How to test your safety switch

Energy Safe Victoria recommends checking your safety switches every three months. Its Test. Reset. Protect. page sets out the steps:

1. Let everyone in the home know you are about to test, and save anything open on a computer.
2. Press the test button on each safety switch. It should trip to off, and you may hear a clunk.
3. Check inside: lights, appliances and power points on that circuit should have no power.
4. Once you are confident the power is off, reset the safety switch by lifting or twisting it back to on.
5. If the lights or appliances did not lose power, the safety switch may have failed. Energy Safe says to call a licensed electrician immediately.

Expect to reset clocks on the oven and microwave afterwards. Only push the test button and the switch itself. Never take the cover off the switchboard.

Signs it is time to call an electrician

• No safety switch at all, or you cannot find one labelled on the board.
• The test button does nothing. A safety switch that does not trip on test is not protecting anyone.
• It trips again and again, or will not reset. That usually means a fault on a circuit or an appliance. Our guide to a switchboard or safety switch that keeps tripping walks through safe checks before you call.
• One safety switch covers the whole house, so every fault puts you in the dark.
• Old ceramic fuses, scorch marks, a burning smell or a buzzing board. Treat these as urgent; see our burning smell guide.
• You are renting the property out, or about to, and are not sure the board meets the standard.

What adding safety switches involves

1. Check the board. We look at what is there: breakers or fuses, how many circuits, how much space, and whether the board itself is in good condition.
2. Test the circuits. Older wiring sometimes has a fault that only shows up once a safety switch is fitted. We test first, so the new switch does not just start tripping the day after.
3. Agree the scope and price. Adding safety switches or RCBOs to an existing board, or replacing the board where it cannot be safely added to. You get a clear price before any work starts.
4. Do the work and test every safety switch. Switchboard replacement is prescribed work, so it is inspected by an independent Licensed Electrical Inspector before it is turned on, as Energy Safe requires.
5. Label and hand over. Circuits labelled so you know which switch covers what, a Certificate of Electrical Safety, and our 2-year workmanship warranty.

We do not publish set prices, because they depend on the board you have. The main things that change the cost are whether the board has room or needs replacing, how many circuits need protection, the condition of the wiring, faults found during testing, access to the meter box, and, for prescribed work, the inspection. Send us a photo of your board with the door open and we can usually tell you which way it is likely to go. Details of board work are on our switchboards and power page, and our guide to when to upgrade a switchboard covers the bigger picture.

Shops, offices and strata

In commercial spaces, safety switches sit inside a wider testing program, alongside test and tag and exit and emergency lighting. Building managers usually want scheduled RCD testing with records they can produce at audit time. We run these programs across Melbourne; see safety and compliance and maintenance.

We cover all of Melbourne, including Caulfield, Brighton East, Moorabbin, Keysborough, Braeside, Seaford, Frankston and the rest of our service areas. Gloform Electrics is Registered Electrical Contractor 27575, on call 24/7, rated 4.9 from 52 Google reviews.

Quick answers

Are safety switches compulsory in Victorian rental properties? Yes. Under Consumer Affairs Victoria's rental minimum standards, which started for electrical safety on 29 March 2023, rental properties must have modern switchboards with circuit breakers and electrical safety switches installed. The rental provider is responsible for engaging an electrician to make sure the property complies.

How often should I test my safety switch? Energy Safe Victoria recommends checking safety switches every three months by pressing the test button. If the power does not go off, call a licensed electrician.

What is the difference between an RCD and an RCBO? An RCD is a safety switch that can protect one or more circuits and works alongside circuit breakers. An RCBO combines a safety switch and a circuit breaker in one unit for a single circuit, so a fault only cuts power to that circuit.

Does a rental need a whole new switchboard to meet the standard? Not always. If the board already has circuit breakers, adding safety switch protection to the power and lighting circuits can be enough. Older fuse boards often cannot be added to, and may need replacing.

Can I install a safety switch myself? No. Switchboard work is electrical installation work and must be done by a licensed electrician working for a Registered Electrical Contractor, with a Certificate of Electrical Safety issued.