An induction cooktop in Melbourne usually needs its own dedicated circuit run back to the switchboard, and it must be hard-wired by a licensed electrician. Most standard power circuits can’t carry the load, so the existing gas cooktop wiring won’t do the job.
Kitchen renovations across Bayside are switching off gas faster than ever, and the cooktop is usually the first appliance to go. Byrd Electrical wires induction cooktops into homes of every era, from 1920s period houses to new townhouses. This guide covers the three-phase myth, the circuit you actually need, and what the work costs.
No, You Probably Don’t Need Three-Phase Power
The most common assumption about induction cooktops is also the most expensive one to act on, and the Victorian Government’s own buyers guide contradicts it in a single line.
That guidance comes from the Victorian Government’s buyers guide. Three-phase only enters the conversation in three situations:
- A large house with heavy loads. Homes running a high number of high-draw appliances at the same time can outgrow what a single-phase supply comfortably delivers.
- A very large solar PV system. Big rooftop arrays are one of the few residential reasons the guide flags for considering three-phase at all.
- A fast EV home charger. High-output chargers draw far more than a cooktop, and that is where the three-phase question genuinely belongs.
Older homes are the usual worry, and even they rarely need it. The guide notes an older house may need its existing connection and wiring upgraded, but should still be able to get a suitable amperage connection on single-phase.
What You Do Need: A Dedicated Circuit
Strip away the myth, and the actual requirement is straightforward, which makes it easy to check before you commit to an appliance. Five things decide the job:
- Each zone draws serious power. Individual cooking zones can typically reach between 1600W and 3000W, according to the Victorian Government’s buyer’s guide.
- Boost mode pushes higher again. Some zones can deliver over 4000W by diverting power from an adjacent zone, though it isn’t intended for long stretches.
- Fifteen amps usually isn’t enough. Most good-quality induction cooktops require more than 15 amps of current, which is above that commonly found in standard residential circuits.
- It has to be hard-wired. You may have existing circuits for the ignition of your gas burner and oven, but an induction cooktop needs to be hard-wired by an electrician.
- A new circuit usually follows. The cooktop will likely need a new dedicated circuit back to the switchboard when its demand exceeds what your existing circuits can supply.
Skip that step and the symptom shows up at dinner time. A circuit carrying more than it was designed for trips, and it keeps tripping until the load moves onto its own dedicated circuit.
When the Switchboard Becomes the Real Job
This is where a straightforward cooktop swap turns into a bigger quote, and it is the part almost every guide covers in a single line. Three checks decide it:
Checking for Spare Ways
Every switchboard has a finite number of ways, and a new dedicated circuit needs a free one. If the board is already full, there is nowhere for the cooktop circuit to land without changing the board itself.
Older Ceramic Fuse Boards
Rewireable ceramic fuses were standard in Bayside homes for decades, and plenty are still in service behind a hallway cupboard door. Boards of that era rarely have RCD protection or physical space for another circuit.
When an Upgrade Wins
An induction cooktop may need a new dedicated circuit installed, or even a switchboard upgrade if no new circuits can be added. Doing both at once costs less than doing them a year apart.
If your board still runs ceramic fuses or has no spare ways, price the switchboard upgrade alongside the cooktop rather than after it. The wiring, the RCD protection and the safety switch all get sorted in one visit, and the kitchen only gets pulled apart once.
Can You Just Plug One In?
A plug fitted at the factory makes this a reasonable question. Some induction cooktops can be plugged into a standard power socket, so the answer is not a flat no.
If the addition of an induction cooktop results in too much power being drawn, the circuit may trip, so have an electrician check what else draws on that socket’s circuit before you add new kitchen power points.
Here is how the two options compare:
| Factor | Plug-in | Hard wired |
| Typical power | Limited by a standard socket | Sized for zones of 1600W to 3000W |
| Circuit needed | Shares an existing circuit | New dedicated circuit to the switchboard |
| Who installs | Circuit still needs an electrician’s check | Licensed electrician, hard-wired |
| VEU eligibility | Eligible only if permanently in-bench | Permanently in-bench products qualify |
Plugging in looks cheaper on day one. Hard wiring to its own circuit is what lets a full-size cooktop run every zone at once, and a Victorian Energy Upgrades discount turns on the product being permanently in-bench either way.
What the Electrical Work Costs
Real numbers beat estimates, and the Victorian Government publishes its own, which saves you guessing across three different quotes. Here is what the changeover typically costs:
- Hardwired install to a dedicated circuit: $600 to $1,200. That covers running the new circuit and hardwiring the cooktop, and complex installations may cost more.
- Capping the gas line: $250 to $500. To decommission and cap an existing gas cooktop, you will require a licensed gasfitter, not your electrician.
- The cooktop itself: $600 to over $6,000. Discount-eligible products need induction coils only, three independently controlled zones, and a two-year warranty.
- A switchboard upgrade sits on top. Where no new circuit can be added to the existing board, that work is quoted separately.
Victorian Energy Upgrades incentives are available to households swapping a gas cooktop for induction, which brings the appliance cost down on eligible products. Two trades, two quotes, one kitchen. The number that moves most is the one hiding behind your switchboard door, and you can find it out before spending a cent on an appliance.
Check the Board Before You Buy the Cooktop
The appliance is usually already sitting in a box in the hallway by the time I get the call. Three checks come first:
What I Look For
Across more than 15 years on the tools, the first thing I open is the switchboard, not the appliance box. Spare ways, fuse type and existing RCD protection tell me most of the story.
Measuring the Spare Capacity
Then I check what the existing circuits actually carry and whether anything already sits close to its limit. A cooktop needing more than 15 amps has to have somewhere to go.
Quoting Before You Commit
You get the diagnosis and a fixed-price quote before any work starts, so the cooktop you choose matches the board you have. The same applies to oven installation.
“Ben provided outstanding customer service for some electrical installation work at my unit. He prepared a quote along with a highly detailed walkthrough, considering all avenues to achieve what I wanted. He promptly responded to my (many) questions and variations, got the job done, and left the site spotless. Highly recommend.” Jake Dylan
Get the board checked before the cooktop is delivered, not after.
Why Bayside Kitchens Differ Street to Street
Why does the same cooktop cost one neighbour a few hundred dollars to wire and the one across the road several times that? Usually the age of the board:
- Sandringham’s postwar homes often keep original boards. Kitchen renovations here regularly uncover a board that has never been touched, so the cooktop circuit becomes a switchboard conversation.
- Brighton’s larger period homes already run heavy loads. Ducted heating, studios and pool equipment in Brighton can leave a board with no spare way for a cooktop.
- Hampton’s renovated cottages mix wiring eras. A 1990s extension in Hampton can sit alongside decades-old cable, and only one suits a new dedicated circuit.
- Beaumaris midcentury homes were built on smaller mains. Supply sized for a gas kitchen in Beaumaris rarely anticipated 3000W cooking zones running together.
- Bentleigh townhouses and apartments run tight boards. Compact boards in Bentleigh are often full from day one, which makes spare ways the first check.
Assume your kitchen matches your neighbour’s and the quote is what corrects you. Opening the board first is a ten-minute job that reshapes the whole budget.
Getting the Order Right on an Induction Cooktop Swap
The job is smaller than most people fear and bigger than a few expect. Three-phase power is rarely part of it, because a standard single-phase supply suits most homes making the change.
A dedicated circuit, hard-wired back to the switchboard, usually is part of it, since ordinary kitchen circuits were never sized for that load. The switchboard is the one genuine variable, and spare ways, fuse type and whatever capacity is left are what decide whether this stays a simple changeover or turns into a larger piece of work.
Sequence is the whole trick here. Look at the board while the cooktop is still a choice rather than a delivery.
Areas We Service
We install induction cooktop circuits across Bayside, including Sandringham, Brighton, Hampton, Beaumaris, Bentleigh and surrounding suburbs. Whether your kitchen sits in a 1950s brick home or a new townhouse, we check the switchboard before quoting the circuit, so the quote reflects the actual job.
Book a Switchboard Check Before Your New Induction Cooktop Arrives This Month
Bought the cooktop already, or still deciding? Call Byrd Electrical on (03) 9000 0666 or book a free quote online, and we will tell you what your Melbourne home’s board can actually take:
- 400+ 5-star reviews from homeowners across Melbourne.
- On Time or We Pay You $200, so you are never left waiting.
- 100+ Year Extended Workmanship Guarantee on every installation.
- Electrician of the Year 2024 and 2025.
Check the board first. The cooktop is the easy part.
Frequently Asked Questions About Induction Cooktop Installation
Do you need 3-phase power for an induction cooktop in Australia?
No. The Victorian Government’s buyer’s guide states it is unlikely you will need a 3-phase connection, because a typical household single-phase connection is adequate for most all-electric households.
Can you just plug in an induction cooktop?
Some induction cooktops can be plugged into a standard power socket. Check what else draws power on that circuit first, because too much total draw will trip it.
Does an induction cooktop need its own circuit?
Usually yes. Most good quality induction cooktops require more than 15 amps, above what standard residential circuits commonly carry, so a new dedicated circuit back to the switchboard is needed.
How much does it cost to install an induction cooktop?
Installing a hardwired cooktop to a dedicated circuit typically costs $600 to $1,200, with capping the gas line a further $250 to $500. Complex installations may cost more.
Who caps the gas line when switching to induction?
A licensed gasfitter, not your electrician. Decommissioning and capping an existing gas cooktop is gas work, so the changeover involves two trades rather than one.
Do I need a switchboard upgrade for an induction cooktop?
Only where no new circuit can be added to your existing board. If there is a spare way and the board is in good order, a new dedicated circuit is enough.
