A switchboard upgrade means your electrician replaces or rebuilds the board that distributes power around your home so it can safely carry a large new continuous load like a 7 kW EV charger. It is common in older Australian and New Zealand homes with ceramic fuse boards, few spare circuits, or no safety-switch protection. All of it is licensed work — in both countries, fixed wiring can only be done by a licensed electrician — and you receive a compliance certificate for the finished job.
Key Takeaways
- A switchboard upgrade rebuilds an older board so it can safely carry a charger’s continuous load.
- Ceramic fuses, missing safety switches and asbestos panels are the common findings in older homes.
- All fixed wiring is licensed work in Australia and New Zealand; you receive a compliance certificate.
- Get the board work quoted separately, and ask about spare capacity for the future.
Why Electricians Raise It When You Add a Charger
An EV charger is one of the largest continuous loads in a home, and older boards were not built with it in mind. When an electrician quotes your charger installation, they assess the board as part of the job. Typical findings in older homes include:
- Ceramic rewireable fuses instead of modern circuit breakers, with no spare way for a new circuit.
- No safety switch (RCD) protection on some or all circuits — modern rules expect it, and a new circuit triggers the question for the whole board.
- Limited total capacity, where the main switch and incoming supply leave little headroom for a 32 A continuous load on top of cooking, heating and hot water.
- Asbestos-containing panels in some older Australian switchboards. If your board has one, it must not be drilled or disturbed casually; your electrician will identify it and handle the board accordingly.
None of this means your home is unsafe today. It means the board has to be brought up to the task before the charger circuit goes in, as our overview of home charger safety sets out in general terms.
What the Upgrade Usually Involves
| Step | What happens |
|---|---|
| Assessment | The electrician inspects the board, main switch and supply capacity, and confirms what the new circuit needs. |
| Board work | Fuse carriers are replaced with circuit breakers or RCBOs, safety-switch protection is added, and space is made for the charger circuit. Sometimes a larger enclosure is fitted. |
| Supply-side work, if needed | If the incoming supply or metering must change, that part involves your electricity distributor; your electrician arranges or advises on it. |
| Charger circuit and testing | The dedicated circuit and charger are installed, tested, and the installation is certified. |
| Paperwork | You receive a compliance certificate for the electrical work — the exact name and form vary by state and territory — plus the charger documentation. Keep both. |
Questions to Ask Before You Agree
- What exactly did you find on my board, and which parts of the upgrade are required versus optional?
- Is the board work quoted separately from the charger installation, so I can see both costs?
- Does my board contain asbestos, and how will that be handled?
- Will the upgraded board have spare capacity for a second charger or other future loads?
- How long will the power be off, and does any part need the distributor involved?
- What certificate and paperwork will I receive at the end?
Quotes vary widely with the board’s condition, so no honest figure exists without an inspection — be wary of anyone who prices board work sight unseen. Once the board is ready, a fixed unit such as the EV-ACT3204PE 22 kW Type 2 wallbox (IP66, RFID and app control) can go in; until then, a portable unit like the EV-ACS3210E on an existing sound power point may cover low daily distances — ask the electrician to check that socket and circuit while they are there. Chargers themselves should carry the local approvals in our Australia certification guide.
Frequently Asked Questions
Can I do any of the switchboard work myself?
No. In Australia and New Zealand, fixed electrical work — including switchboard work and new circuits — is licensed work. There is no DIY portion of a switchboard upgrade.
Does every home need a switchboard upgrade for a charger?
No. Many newer boards have the capacity and protection already. The upgrade question mainly arises with older fuse boards, full boards, or boards without safety switches.
Should I upgrade the board even if I only use a portable charger?
A portable charger on an ordinary power point adds no new circuit, so an upgrade is usually not triggered. If your electrician flags the board as a safety concern in its own right, treat that as separate advice worth hearing.
Related Reading
- EV Charger Certification for Australia: SAA, RCM and EESS Explained
- Are Home EV Chargers Safe?
- Single-Phase vs Three-Phase EV Charging: 7kW, 11kW and 22kW Explained
