Electrical Circuit


  • 1 x RCD Installation ($239 Per RCD)  =   $239

  • 2 x  RCD Installation ($189 Per RCD) =   $378


Also known as a safety switch, a Residual Current Device's (RCD) role is to detect faults within an electrical socket and prevent severe electrical shocks from occurring - It’s essentially a life saving device within your home or commercial office that’s typically located on switchboard. If you have a faulty appliance and a faulty RCD, it may not trigger within the required time which can result in extremely harmful or fatal electric shocks. RCD’s are designed to disconnect quickly enough to protect from the harm caused by such shocks. 

What causes an imbalance in a circuit? There are several reason why your safety switch has tripped:

  • Overloaded power outlets or power boards

  • Faults in the wiring

  • An appliance fault such as a fridge, oven, toaster etc. 

  • Defective or faulty safety switch



Our qualified and friendly team understands that all electrical systems must be maintained and repaired correctly, and that this is a job only professional electricians are capable of doing. We’re committed to ensuring that the properties of our customers are completely safe, providing first-rate electrical services and inspections across Perth's Metropolitan suburbs to ensure all power outlets and connections comply with Australian standards. The electrical safety of your property is our top priority. If your safety switches keep tripping, we can resolve this problem as soon as possible. Contact THM Electrical today to arrange a new safety switch installation, as well as repairs and testing services for your home or business.




Our qualified and friendly electricians service all areas in and around Perth including:

Armadale, Bassendean, Morley, Cloverdale, Floreat, Cannington, Claremont, Spearwood, Cottesloe, East Fremantle, Fremantle, Gosnells, Joondalup, Kalamunda, Kwinana Town Centre, Booragoon, Mosman Park, Mundaring, Nedlands, Peppermint Grove, Perth, Rockingham, Mundijong, South Perth, Stirling, Subiaco, Midland, Victoria Park, Leederville, Wanneroo, Mandurah & Peel Regions