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When Should You Upgrade Your Switchboard? (Mornington Peninsula Guide)
By Sam Banks — A-Grade Electrician (Lic. A53308) · REC 25266
March 15, 2025 · Impulse Electrical Contractors
Quick answer
Upgrade your switchboard if it still has ceramic fuses, lacks safety switches (RCDs), blows fuses or trips frequently, feels hot or smells of burning, or if you're renovating or adding high-load appliances like an EV charger or air conditioning. Many Mornington Peninsula homes built in the 1960s to 1980s are overdue for an upgrade.
If you live in an older home on the Mornington Peninsula, chances are your switchboard is working harder than it was ever designed to. The Peninsula has a huge number of homes built in the 1960s, 70s and 80s — many of which still have the original ceramic fuse switchboard.
These were fine when a household had a TV, a fridge and a few lights. In 2026, with air conditioning, EV chargers, dishwashers, and multiple devices on every circuit, they're simply not up to the job.
Warning Signs Your Switchboard Needs Upgrading
1. You have ceramic fuses (not circuit breakers)
If your switchboard has ceramic fuses — the screw-in type that you replace with wire when they blow — it's time for an upgrade. Modern circuit breakers trip automatically and reset at the press of a button. Ceramic fuses are slower to react to faults and create a risk of fire if the wrong fuse wire is used.
2. No safety switches (RCDs)
In Victoria, safety switches are required on all new installations. But many older homes don't have them. A safety switch cuts power in milliseconds if it detects a fault — potentially saving your life. If your switchboard doesn't have safety switches, you're not adequately protected.
As of 2026, Victorian regulations require RCDs on all circuits in rental properties — not just power and lighting as previously required. Property managers across the Mornington Peninsula, Frankston and Rosebud are now raising this at routine inspections. If you own a rental property with an older switchboard, upgrading to a full RCD-protected board is both a legal compliance step and the safest outcome for your tenants.
3. Fuses blow frequently
If your fuses blow or your circuit breakers trip regularly, it's a sign your circuits are overloaded. This is common in older homes that weren't designed for modern appliances. An upgrade means new circuits and proper load distribution.
4. You're renovating or adding new appliances
Adding an EV charger, a second air conditioner, a spa or a new kitchen? These all require dedicated circuits with adequate capacity. If your switchboard is old, now's the time to upgrade it as part of the renovation.
5. Your switchboard is hot or smells of burning
If you can feel heat coming from your switchboard, or notice a burning smell, call an electrician immediately. This is a fire risk and should be treated as an emergency.
How Much Does a Switchboard Upgrade Cost?
The cost of a switchboard upgrade varies depending on the size of your home, the existing setup and what circuits need to be added. Contact us for a free, no-obligation quote — we'll inspect and give you a clear price upfront with no surprises.
Need a Switchboard Upgrade?
Impulse Electrical specialises in switchboard upgrades across the Mornington Peninsula. Based in Dromana, we're your local licensed electricians with over 10 years of experience. All switchboard work is certified with a COES lodged to Energy Safe Victoria.
Frequently Asked Questions
When should I upgrade my switchboard?
You should upgrade your switchboard if you have ceramic fuses (instead of circuit breakers), no safety switches, frequent tripping, you're adding high-demand appliances like an EV charger or split system AC, or you're renovating. Most electricians on the Mornington Peninsula recommend upgrading boards older than 25 years as a baseline safety measure.
What are signs my switchboard is outdated?
Key signs of an outdated switchboard include ceramic or rewireable fuses instead of circuit breakers, no safety switches (RCDs), a wooden or asbestos-backed board, rust or corrosion, not enough circuits for your home's needs, or a burnt smell near the board. Any of these is a reason to have a licensed electrician inspect it.
Is it safe to have a ceramic fuse box?
Ceramic fuse boxes are significantly less safe than modern circuit breakers and safety switches. Ceramic fuses can be replaced with the wrong rating wire, don't trip fast enough, and offer no protection against earth leakage. If your home still has a ceramic fuse box on the Mornington Peninsula, have it replaced by a licensed electrician as soon as practical.
Do rental properties in Victoria need RCDs on all circuits in 2026?
Yes. As of 2026, Victorian rental regulations require RCDs (safety switches) to be installed on all circuits in rental properties — including power, lighting, and other circuits. If your rental property's switchboard doesn't meet this standard, a licensed electrician can upgrade the board and certify the work with a COES lodged to Energy Safe Victoria.
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