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Electrical Circuit

Switchboard Upgrades

 
From installing new appliances to meeting compliance, here’s everything you need to know about upgrading your switchboard.
 

Switchboard Upgrades

A switchboard is the central hub of your electrical system. It safely distributes incoming power from the mains to every outlet in your home or business. As power usage grows, especially with modern appliances, old switchboards may struggle to keep pace - so upgrading becomes essential for safety and reliability.

1 

What Is a Switchboard Upgrade?

 

A switchboard upgrade involves replacing outdated components—like ceramic fuses—with modern safety devices such as RCDs (Residual Current Devices) and circuit breakers. This not only brings your system up to current electrical standards, but also provides essential protection against electrical shocks and fires.

2

When Do You Need One?

 

Switchboard upgrades are particularly important if you plan to:

  • Add or alter electrical systems - like lighting or outlets

  • Install power-hungry appliances

  • Set up solar panels

  • Address an electrical defect notice

  • Future-proof your home or business for modern energy demands

3

Warning Signs Your Switchboard Needs Attention

 

  • Flickering or frequently tripping circuits - often caused by overload. 

  • Buzzing sounds or overheating components

  • Old-style ceramic fuses

  • Regular fuse blowouts when devices are running concurrently

4

​What Makes Ceramic Fuses Unsafe?

 

Ceramic fuses are outdated and do not offer the same protective coverage as modern safety devices. They only trip during short circuits or overloads—and are often too slow to prevent damage in today’s high-power environments.​

5

What is an RCD?

 
 

An RCD is a life-saving safety switch that cuts power within 10 to 30 milliseconds if a fault (or imbalance) is detected. While circuit breakers protect against overloads or short circuits, they don't guard against electrocution - that's where RCDs come in. It’s best practice to test your RCD every three months using the “T” test button

6

The Upgrade Process - What Happens?

 

Upgrading typically includes:

  • Removing the outdated switchboard

  • Labelling and identifying wiring

  • Installing a new safety switch enclosure

  • Reconnecting and labelling circuits

  • (If needed) Replacing asbestos panels, upgrading consumer mains, or renewing bad wiring

On average:

  • Residential upgrades take about 4–8 hours

  • Commercial or larger setups may require 8–48 hours, depending on complexity

7

3-Phase Power Options

 

If your property demands more power, such as for industrial-grade air conditioning, hot water systems, or heavy-duty ovens, a 3-phase upgrade (which uses three active wires plus a neutral line) may be necessary. It’s also useful for larger solar installations.

8

Is a switchboard upgrade legally required?

 

Under Australian Standards, you’re only required to upgrade your switchboard if you’re making changes to your existing wiring system. This generally applies when:

  • You’ve received an electrical defect notice from your energy provider or electrician

  • You’re planning to install a major electrical appliance (e.g., air conditioning, hot water system, or oven)

  • You need to add new power outlets or circuits in your home or business

While not every situation demands an upgrade, making these changes without bringing your switchboard up to current safety standards can put your property at risk—and in some cases, leave you legally non-compliant.

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