Older Sydney homes often run on outdated fuse boxes that can't safely support solar, batteries, or EV chargers. Here's how to tell if yours needs an upgrade.
1. You Still Have Ceramic Fuses
If your switchboard has porcelain or ceramic fuse holders instead of modern circuit breakers, it predates current safety standards and is a strong candidate for upgrading.
2. No Safety Switches (RCDs)
Safety switches cut power in milliseconds if they detect a current leak, protecting against electric shock. Many older Sydney homes still don't have them fitted on every circuit.
3. Breakers Trip Frequently
Regular tripping, especially when running multiple appliances, often points to a switchboard that's undersized for a modern household's power draw.
4. You're Planning Solar or a Battery
Solar and battery inverters need dedicated, correctly rated circuits. An assessment before installation avoids delays and unsafe workarounds on install day.
5. You Want an EV Charger
EV chargers draw significant continuous current — older switchboards frequently lack the spare capacity or correct circuit protection to support one safely.
6. Visible Scorch Marks or a Burning Smell
Any sign of heat damage around your switchboard is a genuine safety hazard and should be assessed immediately by a licensed electrician.
7. It's Simply Old
If your switchboard hasn't been touched since the home was built decades ago, it's worth a professional assessment — most upgrades are completed in a single day with a short scheduled outage.
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