Safety Switch Installation Sydney

Moonlight Electrical is a family-owned business based in Merrylands, serving homes and businesses across Western Sydney and the greater Sydney area. We hold NSW Electrical Contractor Licence 373818C and Level 2 ASP accreditation, which means we’re authorised to work on everything from your safety switches right through to the connection between your property and the power network.

Every safety switch installation comes with our 7-year warranty on electrical systems and lifetime labour guarantee. We arrive within 60 minutes or the service call is free (when booked before midday), and we offer a 10% seniors discount on all work.

A safety switch, technically called a residual current device or RCD, monitors the flow of electricity through a circuit. If it detects current leaking to earth (which happens when someone touches a live wire, or when a faulty appliance develops an earth fault), it cuts the power in under 0.03 seconds. That’s faster than a heartbeat, and it’s the difference between a minor shock and a serious injury or fatality.

Safety switches are installed in your switchboard and protect individual circuits. A properly protected home has an RCD on every final subcircuit, powerpoints, lighting, hot water, air conditioning, cooking appliances and any other fixed electrical equipment.

Under the AS/NZS 3000:2018 wiring rules (enforced in NSW from 1 January 2019), safety switches are mandatory in the following situations:

• All new domestic and residential installations — every final subcircuit must have 30mA RCD protection. This includes powerpoints, lighting, hot water, air conditioning and cooking circuits.
• Any alteration to an existing circuit — if you extend a powerpoint circuit, add new lighting or alter any existing wiring, RCD protection must be added to that circuit.
• Switchboard replacement — if your switchboard is replaced for any reason, all applicable final subcircuits originating from that switchboard must have RCD protection.
• Rental properties — under the Residential Tenancies Regulation 2019, safety switches must be installed and tested at the start of each tenancy. A faulty safety switch is classified as an urgent repair.

The one exception is straightforward repairs, replacing a single powerpoint, light fitting or appliance in the same location without altering the subcircuit does not trigger the RCD requirement.

If your home was built before 1991, there’s a strong chance your switchboard has limited or no safety switch protection. While retrofitting RCDs to older homes isn’t legally mandated unless you’re doing electrical work, NSW Fair Trading strongly recommends it. Given that a safety switch is the only device that protects people from electrocution, it’s one of the most important electrical upgrades you can make.

If you’re buying or recently bought an older Sydney home, an electrical safety inspection confirms exactly which circuits currently have RCD protection, which don’t, and the priority order for retrofitting, all documented in a written report you can use for negotiation, insurance, or planning the work.