A dedicated circuit runs from the switchboard to a single appliance or outlet, with its own breaker and safety switch protection. It's how large or critical equipment gets the power it needs without tripping everything else on the circuit.
Phone 0421 772 661 with the appliance or equipment you're adding. We'll check the switchboard and quote the circuit in writing.
In many homes, a single power circuit feeds several rooms. That's fine for lamps, chargers and a TV, but when a heater, a kettle and a hair dryer all run on the same circuit, the breaker does its job and trips. Big fixed appliances such as ovens, cooktops, air conditioners and EV chargers draw heavy current for long periods, so they get their own circuit, sized for the appliance and the length of the run.
A dedicated circuit isn't only about heavy load. Some equipment benefits from being on its own so a fault elsewhere doesn't switch it off: a fridge or freezer full of food, a home server or network rack, a sump pump, or medical equipment. In those cases we talk through how the circuit is protected, so it remains safe without being cut off by unrelated faults.
Wall ovens, freestanding cookers and induction cooktops, sized to the appliance's rating.
Split systems and ducted units. Our guide to the air conditioner dedicated circuit explains when one is needed.
A wall charger on its own circuit, with the switchboard and supply checked first. See EV charger installation.
Sub-mains or circuits to a garage or backyard studio for tools and compressors. Our power to a shed or garage guide covers the options.
A separate circuit so computers and network gear aren't sharing with the kitchen or a heater.
Pool pumps, spa heaters and heat pump hot water systems that run for hours at a time.
We start with the equipment's rating plate or installation manual, which tells us the current it draws and any specific requirements. Then we look at the switchboard: is there a free space, is there safety switch protection, and is the main switch big enough for the extra load? If the board is full or still has ceramic fuses, it usually needs an upgrade before a new circuit goes on. Our switchboard upgrade signs guide explains what to look for.
Next is the route. The cable is sized to the load and the distance, then run through the roof space, under the floor or in conduit to the appliance location. It ends at an isolator, outlet or direct connection, depending on what the equipment needs. Back at the board, a breaker or RCBO is installed and the circuit is labelled.
Finally, every circuit is tested to AS/NZS 3000, including insulation resistance and correct operation of the safety switch. We lodge a Certificate of Compliance for Electrical Work for the new circuit, and you get a copy.
The main factors are the distance from the switchboard, the cable size the load requires, how easy the route is, and whether the switchboard has room or needs work first. A circuit on a short run through an accessible roof is quick; one that has to cross a two-storey terrace from a front-verandah switchboard to a rear kitchen takes far longer. Trenching to a backyard building adds more again.
If you're adding several big loads, such as an induction cooktop, an EV charger and a heat pump, it's cheaper to plan them together than one at a time, because the switchboard and supply are assessed once. Our power point installation cost guide covers similar pricing factors.
Many Federation and inter-war homes were wired when the heaviest appliance was a stove, and they still have a modest single-phase supply and a small main switch. Adding multiple dedicated circuits can push the total demand past what that supply comfortably carries. We check the overall picture so a new circuit doesn't just shift the problem to the main switch.
Check the installation manual. Large fixed appliances and anything that draws heavy current for long periods usually do. We confirm it from the rating plate.
Possibly. We first check the circuit for faults, then look at what's connected. Moving one heavy load to its own circuit often solves it.
Sometimes there's room for a compact device; often the board needs upgrading. We'll show you the options at the quote.
New circuits in homes are installed with RCD protection, usually as an RCBO. That protects people as well as the cable.
Yes. Once the circuit is tested we lodge a CCEW. Our CCEW guide explains what it covers.
NSW Electrical Contractor Licence 332956C · Fully insured · Since 2016 · Based in Hurlstone Park
Excellent electrician Blue Link Electrical was honest, knowledgeable, and took the time to answer my questions The work was completed quickly without rushing and everything works perfectly Will be using them
Very professional and reliable service. Blue Link Electrical were punctual, friendly, and knew exactly what they were doing. The job was completed to a high standard and the place was left clean. Highly recommend to anyone needing electrical work.
Can't fault the service from Blue Link Electrical From first contact to job completion everything was smooth and professional Quality workmanship and great attention to detail. One of the best trades experiences I've had. Make sure you do them slowly
Shown in full, as written on our Google Business Profiles.
Send us a few details and we'll get back to you with a clear, upfront quote.