Serving Sydney, Canberra and regional NSW.
Professional RCD Testing Sydney services performed in accordance with AS/NZS 3760. We use calibrated test equipment to measure RCD performance, record trip times on tags and compliance reports, and provide clear, audit-ready documentation for your workplace.
Residual Current Devices (RCDs)—also known as safety switches—are one of the most important electrical protection devices in your workplace. Their role is simple: if electricity starts flowing somewhere it should not—such as through a damaged appliance, exposed cable or a person—they disconnect the power in milliseconds, significantly reducing the risk of electric shock.
However, an RCD is not a "fit and forget" device. Internal components can deteriorate over time, and a safety switch can appear normal while failing to operate correctly under a genuine fault condition. That means the first time you discover a failed RCD could be during an electrical incident.
SafeWork NSW recommends regular testing to confirm that RCDs operate as intended. Professional testing uses calibrated equipment to measure actual trip times and, where required, trip current performance—providing objective evidence that your safety device is functioning correctly.
For businesses, schools and organisations, documented RCD testing supports a proactive approach to electrical safety, helps maintain compliance records and provides confidence that the devices designed to protect people will work when they are needed most.
Pressing the test button confirms the mechanical operation of the RCD but does not measure trip time or verify operating performance under calibrated test conditions. Professional testing provides measurable results and recorded trip times. If you're unsure whether your workplace still requires testing, read our guide on current NSW requirements.
Book your RCD test nowExamine switchboard and RCD condition, checking for damage, corrosion, or signs of overheating
Measure RCD trip performance using calibrated testing equipment in accordance with AS/NZS 3760 requirements.
Trip time is recorded on the RCD tag (e.g., 18ms) for traceable, audit-ready results
Verify the RCD trips at the correct residual current threshold (30mA for personnel protection). A ramp test gradually increases current until the device trips, confirming it operates within the rated sensitivity rather than too early (nuisance tripping) or too late (safety risk).
Every RCD tested receives a durable tag showing trip time, test date and next due date. A full compliance report is issued for your records — audit-ready documentation that satisfies WHS obligations, insurance requirements and SafeWork NSW expectations.
SafeWork NSW and AS/NZS 3760 require RCD testing:
Commercial and industrial workplaces, construction sites, and high-use environments
After electrical alterations, repairs, or new equipment installation
After the RCD trips, power surges, lightning strikes, or suspected faults
Before commercial lease commencement or renewal
When requested by insurers or during WHS compliance audits
RCD testing services available for schools and education facilities across NSW, supporting WHS and audit compliance.
Certified RCD testing across Sydney, Canberra, Lithgow and regional NSW — compliant with AS/NZS 3760 and SafeWork NSW standards.
Our technicians are trained in AS/NZS 3760 procedures and use calibrated equipment to perform accurate RCD testing.
Clear upfront quotes with no hidden fees. Volume discounts available
Same-day service available across Greater Sydney metro areas
Schools, offices, warehouses, hospitality venues and industrial facilities — we tailor RCD testing to suit your workplace environment and compliance requirements, including three-phase equipment testing where required.
Comprehensive documentation for insurance, audits, and compliance
We remind you when your next inspection is due
Common questions about residual current device testing
Understanding your workplace electrical safety responsibilities is important. SafeWork NSW provides practical guidance on managing electrical risks, including the use of residual current devices (RCDs), inspection and testing of electrical equipment, and maintaining safe workplaces.
Useful resources include:
These resources provide independent guidance to help businesses understand their electrical safety responsibilities and implement effective risk controls.
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