Yes, safety switches (also called RCDs) are mandatory in Australian homes, though exact requirements vary by state. At minimum, all states require safety switches on power point circuits. Queensland requires them on all circuits in any property that is sold or leased, and new homes in all states must have safety switches on every circuit under AS/NZS 3000.
Overview
A safety switch — technically called a Residual Current Device (RCD) — is a life-saving device that detects earth leakage current and cuts power within 30 milliseconds, preventing electrocution. They are not the same as circuit breakers, which only protect wiring. In Australia, safety switches have been progressively mandated across all states, and they are the single most important electrical safety device in your home. If your switchboard doesn't have safety switches on every circuit, upgrading is affordable and could save your life or your family's.
When you need this service
- ✓Your switchboard has circuit breakers but no safety switches (RCDs)
- ✓You need to comply with safety switch requirements when selling or leasing a property
- ✓Your existing safety switch is tripping frequently and needs diagnosis or replacement
- ✓You want all circuits protected — not just power points but also lighting and hardwired appliances
- ✓Your safety switches haven't been tested or serviced in over 12 months
How it works
- 1
Switchboard Inspection
The electrician checks your switchboard to identify which circuits already have RCD protection and which need safety switches added.
- 2
Installation
Safety switches are installed on unprotected circuits. In some cases circuits need to be rearranged to group them correctly behind RCDs. Installation takes 1 to 2 hours.
- 3
Testing & Verification
Each safety switch is tested with a calibrated RCD tester to verify it trips within the required 30 milliseconds at the rated fault current. Test results are recorded.
How much does it cost?
Installing a safety switch in Australia costs $200 to $350 per RCD, including the device and labour. Most homes need 2 to 4 safety switches to cover all circuits (power points, lighting, hardwired appliances). If your switchboard needs modification to accommodate additional RCDs, this may add $100 to $300. An RCD testing service (testing existing safety switches) typically costs $100 to $200 for a standard residential board. Many electricians offer a combined installation and testing package.
Australian regulations
Safety switch requirements in Australia are governed by AS/NZS 3000 (Wiring Rules) and state-specific legislation. New homes and major renovations require RCDs on all circuits. For existing homes: Queensland requires RCDs on all circuits when a property is sold or leased; NSW requires them on power point circuits; Victoria requires them on power point circuits in rental properties. All states require safety switches to be rated at 30 mA and trip within 300 ms (with most tripping within 30 ms). The Australian Standard recommends pressing the test button every 3 months and professional testing annually.