RCD Testing Services NSW - Safety Switch Trip Testing for Workplaces and Sites

Safety Switch Testing as Part of Running a NSW Workplace

Residual current devices protect people at work from electric shock by cutting the power within a fraction of a second when current leaks to earth. NSW law treats them as safety equipment that has to keep working, so a business relying on them is expected to show that they still trip. That proof comes from regular testing by a competent person and a written record of each result. Testing each device is quick and cheap, yet it switches off every circuit the device protects, which affects how a visit is planned. Every price on this page is a 2026 estimate for NSW workplaces and should be checked against written quotes.

Homeowners who want safety switches added or upgraded need a different service, because that is installation work for a licensed electrician, one of the jobs listed in our NSW electrical services hub. Prices for that work appear in the NSW safety switch installation cost guide, and a broader check of a home's wiring is part of an electrical safety inspection. The rest of this page deals with RCD testing in workplaces, where the business holds the legal duty and SafeWork NSW asks for a competent tester. Landlords of shops and offices may need both services at different times, so check which one a quote is for.

2026 Price Bands for Trip Testing Safety Switches

In NSW in 2026, an instrument trip-time test, where the tester measures how fast each RCD switches off, costs about $10 to $25 per device. That rate applies whether the RCD is mounted on a switchboard, built into a power point or housed in a portable adaptor brought to the test point. Visits carry a minimum charge or call out of about $130 to $280, which covers travel and setting up the instrument. A small office with six RCDs on one board can therefore pay the minimum, since six devices at the per RCD rate come to only $60 to $150. When the same visit includes a test and tag round of the office equipment, the item count alone can lift the bill past the minimum. For full item price tables by site size, refer to our NSW test and tag cost guide.

Item rates come to about $6 to $10 for small offices and shops and $4.50 to $7 for larger sites with many items in one place. Extension leads and power boards add about $4 to $8 each, and some invoices list them apart from appliances. If a cord or plug fails, a replacement plug costs about $25 to $60 fitted and a new lead about $35 to $80, charged on top of the testing. Registers of results and test reports are usually included in the price, though the quote should confirm that in writing. Work after hours or on weekends can attract a loading, so get the rate in writing before booking a night visit.

Replacing a failed switchboard RCD is separate work and is not part of the testing price. Our NSW safety switch cost guide lists a replacement at about $150 to $280 per device, with more to pay where the board itself needs changes. That work is done by a licensed electrician, whose call out and hourly rates are listed in the NSW electrician pricing guide. Keeping the two prices apart on paper shows clearly what the testing itself costs.

How a Testing Visit Turns Into an Invoice

Testing businesses build an RCD price from three parts: a charge per device, a minimum for the visit and any travel or after-hours loading. The per device rate covers connecting the instrument, running the timed test, resetting the device and recording the result. Finding the devices takes time too, especially when power points with built-in RCDs are spread across several floors or hidden behind furniture. With a board schedule, meaning the printed chart inside the switchboard door that names each circuit, the tester does not have to switch circuits off one by one to find out what each feeds. Where no schedule exists, some testers charge an hourly rate to map the circuits before testing starts.

Bundling RCD testing with a test and tag round removes the risk of paying two minimum charges. A cafe with eight RCDs and 60 items, for example, might pay $10 to $25 for each RCD and $6 to $10 for each item, which comes to $440 to $800 before any repairs. That total is well above the minimum, so the minimum charge does not apply. Booked on its own, RCD testing for the same cafe would come to $80 to $200 in device charges and could be charged at the minimum instead. Businesses with several premises can request one rate across all of them, though travel between regional sites may still be listed per trip. If you run several shops or offices, compare testing programs in our guide to commercial test and tag.

What the NSW Regulation Asks of Safety Switch Owners

The Work Health and Safety Regulation 2025 commenced on 22 August 2025 and replaced the 2017 Regulation, according to SafeWork NSW. The regulator describes the new Regulation as largely continuing the old one, with most changes being editorial or specific to NSW. One provision deals with socket outlets in a hostile operating environment, and another deals with the testing of residual current devices. A separate provision covers the inspection and testing of plug-in electrical equipment used in the same kinds of conditions. The full text of the Regulation is published on the NSW legislation website.

The rule on hostile outlets applies to whoever runs the business or undertaking, which the law calls a person conducting a business or undertaking, or PCBU. That person must reduce the electrical risk from socket outlets, meaning power points, in hostile conditions by using an RCD, so far as is reasonably practicable. The device must have a tripping current of no more than 30 milliamps, written as 30 mA, where it protects socket outlets rated up to 20 amps. SafeWork NSW's code of practice lists exceptions for supplies of 50 volts alternating current or less, direct current, isolating transformers that separate the outlet from the mains and some non-earthed portable generators. That code, Managing electrical risks in the workplace, is dated August 2019 and is practical guidance written before the 2025 Regulation, so the Regulation itself is the binding text. The testing provision then requires the person managing or controlling the workplace to take all reasonable steps to have RCDs tested regularly by a competent person.

Records are the part of the testing rule that an inspector can check on paper. SafeWork NSW states that a record of each test, other than a push-button test, must be kept until the device is next tested or is disposed of. Guidance from Safe Work Australia describes the excluded checks as daily push-button tests, so the timed instrument test is the one that needs a written result. Without that record, a business has no simple way to show the devices were tested at all.

Deciding Whether Your Outlets Count as Hostile

The hostile outlet rule applies only where conditions make damage to equipment or its cord likely, so each business has to judge its own premises. Examples of these conditions in the NSW code of practice include moisture, heat, vibration, mechanical damage, corrosive chemicals and dust. It also counts equipment moved between locations where damage is reasonably likely, equipment moved often in normal use, and anything used with an amusement device such as a ride at a show. Commercial kitchens with wet benches and hot appliances fit that description, and so does an outdoor power point used for pressure washers in a car yard. Carpeted offices where computers stay on the same desks all year are a very different setting.

Outlets outside hostile conditions are not covered by the duty to install an RCD, yet any RCD used at the workplace still needs regular testing. According to SafeWork NSW's code, the testing duty covers all operating environments, including fixed RCDs on the switchboard. Offices with safety switches on their boards therefore have a testing duty even where none of their outlets would count as hostile. Cleaning contractors who carry vacuum cleaners and floor scrubbers into client buildings are one example of the moving equipment case. For quieter office settings, intervals for low-risk rooms appear in our guide to IT equipment test and tag.

The Button on the Device Versus a Timed Instrument Reading

Every RCD has a test button that creates a small internal leak when pressed, so a working device should switch off. When the button trips the device, that shows the mechanism inside can still open the contacts. It does not show how much leakage current the device needs before it trips, or how long it takes to act. Instrument tests answer those questions by passing a measured fault current through the circuit and timing the response in milliseconds, written as ms. Fluke makes multifunction installation testers, Megger makes multifunction testers with an RCD ramp test, and Kewtech makes digital RCD testers. A ramp test raises the leakage current in small steps until the device trips, which shows the actual trip current.

SafeWork NSW's code of practice sets out two classes of RCD taken from AS/NZS 3190:2016, a joint Australian and New Zealand standard for approving and testing these devices. Type I devices have a rated tripping current of no more than 10 mA and must trip within 30 ms, for uses such as equipment connected to hospital patients. Type II devices have a rating above 10 mA and up to 30 mA and must trip within 300 ms, and the code calls them the most suitable for protecting people from shock. Results inside the limit for the device's class are a pass, while no trip or a slower trip is a fail. Because the limit depends on the class, the test record should show the rating beside the measured time.

Push-button checks need no equipment and take a few seconds, so staff can be shown how to do them on portable units before use. Each press cuts the power on that circuit, and computers, tills and fridges on it stay off until the device is reset. Any device that will not reset, or trips again straight away, should be reported and left off until checked. Noting who pressed the button and when is optional under the record rule, though it helps show that a routine is in place.

Where Test Intervals Come From: AS/NZS 3760 and AS/NZS 3012

The NSW Regulation says RCDs must be tested regularly, but it does not give a number of months. SafeWork NSW points workplaces to AS/NZS 3760, titled In-service safety inspection and testing of electrical equipment and RCDs, for testing methods and frequency. The current edition is AS/NZS 3760:2022, and it can be bought from Standards Australia. Building and demolition sites follow a separate standard, AS/NZS 3012:2019, Electrical installations for construction and demolition sites, which sets the testing and record keeping for site RCDs. If you run a building site, see our construction site test and tag guide for site boards, leads and the rules for each floor. Neither standard is free to read, but a testing business that works to them should hold a current copy of each.

For plug-in equipment, Safe Work Australia's guidance gives at least once every 12 months as the general rule in hostile conditions. Manufacturing workshops and commercial cleaning equipment are set at least every six months, while hire equipment is tested at the start of each hire and every three months. Construction and demolition equipment is set at least once every three months, under the same guidance. Those figures cover equipment, and the RCD intervals appear in separate tables in the two standards. Because those tables are not free to view, a tester proposing a schedule should name the table and edition it follows. The guidance also lets the manufacturer's recommendations, where they exist, help set the interval.

Switchboard, Power Point and Plug-In Safety Switches Compared

A switchboard RCD protects every circuit it feeds, including the fixed wiring and each outlet and light on those circuits. Some boards use RCBOs, short for residual current breakers with overcurrent protection, which combine an RCD and a circuit breaker for a single circuit. Power point RCDs are built into the outlet and protect the items plugged into it, along with any outlets wired after it. Portable RCDs plug into an ordinary outlet and protect only what is plugged into them, which makes them useful where the fixed wiring is unprotected or unknown. HPM makes RCD protected portable power outlets, and Arlec makes single outlet safety switch adaptors for tools and appliances. Clipsal, Hager and NHP make switchboard RCDs and RCBOs for fixed installations.

SafeWork NSW's code of practice notes that the Regulation does not require either portable or fixed devices, and the right choice depends on the workplace. Safe Work Australia lists the amount of control a business has over the electrical installation as one factor in that choice. Businesses that own their building can have RCDs fitted at the board, which protects every user of those circuits without anyone remembering to plug in an adaptor. Tenants and contractors working in someone else's building may have no say over the board, so portable units are the practical option for them. Fixed devices are tested at an outlet on their circuit, while a portable unit is plugged into a live outlet with the instrument connected to it.

Leased Premises, Strata Buildings and Shared Workplaces

Several businesses can share responsibility for the same safety switch, and the law expects them to agree on who does what. Safe Work Australia's guidance says each PCBU keeps responsibility for suitable RCD protection to the extent it can influence or control the matter. Duty holders who share a workplace must also consult and cooperate with each other. In a leased shop, the landlord may own the switchboard while the tenant uses the outlets every day. Writing down who books the timed tests, who keeps the records and who pays for a failed device stops each party assuming the other has acted.

Strata buildings add a third party, because the owners corporation, the body made up of all the lot owners, controls switchboards on common property such as car parks, plant rooms and shared laundries. Its strata manager can arrange RCD testing for those boards, and maintenance contracts for common areas are described in our guide to strata electrical maintenance. Boards inside a lot can belong to the lot owner, so the strata plan and by-laws should be checked before anyone books the work. Labour hire workers and contractors on another business's site rely on that host's RCDs, which gives both businesses a reason to see current results. Contractors can request the host's register before plugging in, or bring a portable RCD to cover their own tools. Tradespeople carrying their own gear will find lead and tool checks under power tool testing and tagging.

Where Testing Ends and Licensed Electrical Work Begins

For equipment testing, SafeWork NSW describes a competent person as someone with the knowledge and skills gained through training, qualification or experience. Its guidance on inspection and testing does not list an electrical licence as a condition for that role. Working inside a switchboard, replacing a device or changing circuits is different, because NSW law requires a licensed electrician to do or supervise electrical wiring work, as set out by Building Commission NSW. For a fuller answer on who may carry out testing in NSW, read our NSW test and tag guide. Martindale makes voltage indicators that electricians use to prove a circuit is dead before working on it.

When an electrician replaces an RCD, the work counts as installing electrical equipment, so a Certificate of Compliance for Electrical Work, known as a CCEW, must follow. The CCEW is due no later than seven days after the safety and compliance test on the finished work. From 1 July 2026, every CCEW in NSW must be lodged through the Building Commission NSW eCert portal, and handwritten or PDF forms are no longer accepted. Section 36(4) of the Gas and Electricity (Consumer Safety) Regulation 2018 also requires each RCD installed or replaced as part of installation work to be tested under the wiring rules. Testing businesses without an electrician on staff will refer that work on, and their quotes should say so. Getting the CCEW number printed on the invoice gives you a record that the replacement was certified.

Type AC, Type A and Type B Devices Under NSW Rules

RCDs are also sorted by the kinds of leakage current they can detect. Type AC devices respond to alternating leakage only, and Building Commission NSW states that they must not be installed in any new electrical work. That ban took effect on 1 May 2023 under Amendment 2 to AS/NZS 3000:2018, the wiring rules, which was published in 2021. Type A devices are the standard replacement, and Building Commission NSW describes them as covering pulsating direct current faults up to 6 mA as well. Type B devices are needed where direct current leakage is more likely, such as with electric vehicle chargers and solar inverters. Type AC devices have also been removed from the NSW declared articles list, which names electrical items that need approval before sale, so they cannot be sold in the state.

During a test round, the tester can record which type each switchboard device is, because the type is marked on the front with a symbol or letters. The ban covers new work, so an existing Type AC device that passes its timed test is not an automatic fail. Building Commission NSW warns that fines of up to $1,000 can apply where Type AC devices are installed or are not replaced when required. Businesses adding EV chargers or solar batteries can expect the electrician to choose a device type matched to the equipment maker's instructions. Schneider Electric makes Type A residual current devices for switchboards.

Household safety switches follow the same Type AC ban, because the ban is written into the wiring rules that govern new electrical work in every kind of building. A homeowner adding circuits or replacing a board will receive Type A devices or better, along with a CCEW lodged through the eCert portal. Routine testing at home is not governed by the workplace sections of the Regulation, so households rely on the test button and on checks made during electrical work. Questions about a home board are best taken to a licensed electrician, and prices for added devices appear in the NSW safety switch installation cost guide.

When a Safety Switch Fails on the Day

A fail can mean the device would not trip, tripped too slowly for its class or would not reset after the test. Under Safe Work Australia's guidance, unsafe electrical equipment must be disconnected or isolated until it is repaired and found safe, replaced or removed from use, so a fail needs action on the day. For a portable adaptor or RCD power board, the tester can label it out of service and hand it back for disposal. Brady makes lockout tags and safety labels that can mark a device as unsafe until it is removed. Keeping one or two spare portable units on hand means work can carry on after a fail.

Failed switchboard RCDs are harder to manage, because the circuits they protect may have no shock protection until an electrician replaces them. The tester should report the fail to the person in charge straight away and record which circuits are affected. After weighing the risk, the business then decides whether to keep those circuits off or limit their use until the replacement is done. Where staff still need power, a portable RCD at each outlet gives interim protection for plug-in items. Urgent replacements can be booked through an emergency electrician if the circuits cannot stay off. Repeated fails on a board full of older devices may mean the board needs a wider switchboard upgrade.

When a device will not reset, it may be faulty itself or it may be reacting to a real leak on one of its circuits. Telling the two apart is a job for electrical fault finding by a licensed electrician, who can isolate each circuit in turn. The tester's notes on what was connected at the time of the test help the electrician find the fault more quickly. Faults on cool room or freezer circuits need attention first, because stock is at risk while they stay off.

Planning Around the Power Cut Each Trip Test Causes

Each timed test switches off every circuit the RCD protects, and the power stays off until the device is reset. On a board where one RCD covers several circuits, that can include office computers, the tills at the counter, cool rooms and security panels at once. Staff should save their work and shut down computers on the affected circuits before the tester begins. Fridges and freezers can manage without power for a short time, but a long round on one board can let a cool room warm up. Servers and network switches may need a controlled shutdown, which the IT provider or the data cabling installer can advise on. Uninterruptible power supplies, which are battery units that keep equipment running through a short cut, can carry critical devices through a test if they are in good order.

The time of the visit needs as much planning as the site preparation. Early mornings before opening suit shops and cafes, while schools may prefer days when students are not on site. Out-of-hours visits avoid lost trading time but can attract an after-hours loading, so compare that loading with the trading you would lose by closing. Sites that cannot lose power at all may need a staged plan agreed in advance, or temporary supply from a generator, with permanent options listed under generator installation. RCD tests can also form part of a wider program of commercial electrical maintenance.

Keeping an RCD Register a SafeWork NSW Inspector Can Follow

Because a switchboard RCD is not tagged like a kettle, the register holds the proof of testing for it. Each entry should name the board and the device position, the circuits it protects, its rated current and type, and the measured trip time. SafeWork NSW requires equipment test records to show the tester's name, the date, the outcome and the date the next test is due, and the same headings suit RCD results. Dymo makes label printers that can mark each device with an ID number matching the register. Built this way, the register lets the next tester continue from the last round, even if the business changes provider.

Portable RCDs can be tagged in the same way as other plug-in items, since SafeWork NSW accepts a tag on the equipment as a form of record. Seaward makes portable appliance testers that store results for download into a register. Wider record keeping for test and tag rounds, including what the tags themselves show, appears in our guide to testing and tagging in NSW. Keep the register where staff can reach it on the day an inspector calls, not only on the tester's own system. Electronic registers need regular backups, because a lost file leaves the business with no record of past results.

Problems With a Testing Provider and Where to Take Them

Testing services come with consumer guarantees under the Australian Consumer Law, known as the ACL, including that they are provided with due care and skill. Those guarantees can cover services that a business buys for $100,000 or less. If results were missed, devices were left off or the register is incomplete, raise it in writing and give the provider a fair chance to fix the problem. Guidance on consumer guarantees for services, including that price limit, is published by the Australian Competition and Consumer Commission. Unresolved complaints about a NSW business can go to NSW Fair Trading, which can contact the trader on your behalf. Workplace safety concerns, including a host site with untested devices, can be reported to SafeWork NSW.

Small businesses also have protection against unfair terms in standard form contracts, and renewal clauses in testing agreements are among the terms to read closely. Check the cancellation and price review clauses as well before signing a contract that runs for several years. Providers that cannot produce the register or the test results after a visit have not delivered the full service you paid for. Keep copies of quotes, invoices and every register export, because those records support any later claim. For contract prices and what they include, check the test and tag cost guide.

After an electric shock at work, the RCD records become evidence for the business, its insurer and any inspector. An electric shock is listed by SafeWork NSW as a dangerous incident to notify under the NSW Work Health and Safety Act 2011, apart from exceptions such as static or extra low voltage shocks. The incident site has to be left undisturbed until an inspector arrives or directs otherwise, apart from steps such as helping an injured person or making the site safe. Current test records let the business show exactly what was tested and when it happened.

Warning Signs in an RCD Testing Quote or Report

A report that marks every device as passed without a measured time in ms gives no proof that an instrument test took place. Check that the quote names the standard and edition behind its proposed interval, such as AS/NZS 3760:2022 for ordinary workplaces. Be cautious where the price per RCD looks low but the minimum charge is missing, because on a small job the minimum charge can set the total bill. Testers who call for every working Type AC device to be replaced on the spot should show the rule, since the NSW ban applies to new work. Confirm that public liability insurance is held, because each test cuts power to equipment that belongs to you.

Look closely at what the report says about failed devices. It should name each fail, the circuits affected and the action agreed, so nothing is left as an unexplained line in a spreadsheet. Where a testing business also replaces fixed devices, the quote should name the licensed electrician and give the licence number. That number can be checked through Service NSW before any switchboard work begins.

Getting RCD Testing Quotes That Compare Device for Device

Start with a device survey, walking each switchboard to count the RCDs and RCBOs, then list power points with their own test button and the portable units in use. Note the circuits each board device protects, using the board schedule, and mark any that cannot lose power during trading hours. Add the number of plug-in items if test and tag will be done on the same visit, because the combined count changes the price per visit. Photos of each open board and its circuit chart help testers price the job without a site visit. Say whether any part of the premises counts as a hostile operating environment, since that affects the intervals proposed. Request a written quote that lists the per device rate, the minimum charge, any travel and any after-hours loading on separate lines.

Compare quotes on the interval each tester proposes as well as the price, since a cheaper quote on a longer cycle may not suit your risk. Check that each quote names the edition of AS/NZS 3760 or AS/NZS 3012 it follows and whether a register and report are included. Confirm how failed fixed devices will be handled and who will issue the CCEW if an electrician is needed. When a price is quoted in parts, ACCC rules on component pricing call for a single total, including GST, the goods and services tax, shown as prominently as the parts. Posting the device survey once on The Quote Yard lets several NSW testers price exactly the same list.

Book the first round soon after any switchboard work, so new devices start their records with a first measured result. Before a tenant moves out, testing gives both parties a dated record of the devices at handover. For a newly fitted board, request a copy of the electrician's test results and the CCEW number, and file them with the register. Each later round can then be compared with the first, which makes a slowing device easier to spot.