Call 24/7 Helpline


Ask an Electrician: How Many Powerboards Can I Run Off a Single Power Outlet?

Table of Contents

Table of Contents

“Ask an Electrician” is a content series where we tackle your most pressing electrical questions with clarity and expertise. Today, we’re addressing a common query from homeowners throughout Sydney, especially those in Marrickville and the Inner West: How many powerboards can I safely use with a single power outlet?

Understanding Powerboards

Powerboards, also known as power strips or extension blocks, are a staple in modern households. They allow us to plug multiple devices into one power outlet, a necessity in an age where electronic devices abound. While powerboards come in various shapes and sizes, with features like surge protection and individual switches, they must be used with caution. Their convenience can quickly become a hazard if overloaded or misused.

Electrical Standards in Australia

In Australia, electrical installations, including powerboards, must comply with the Australian/New Zealand Standard AS/NZS 3112. This standard ensures that electrical products offer the highest safety level to users. Homeowners must understand these standards to prevent risks such as electrical fires or appliance damage.

Factors to Consider

When deciding how many powerboards to use off a single outlet, consider the following:

  • Total Load Capacity: Most residential power outlets in Australia are rated at 10 amps. Ensure the combined load of all devices does not exceed this.
  • Power Rating of Appliances: Check the wattage of each appliance to ensure the total does not surpass the outlet’s capacity. High-wattage devices should be plugged directly into wall outlets.
  • Quality of Powerboards: Opt for built-in safety features like overload and surge protection to mitigate risks.

Safety Tips

To safely use powerboards in your home, follow these guidelines:

  • Avoid Daisy-Chaining: Connecting multiple powerboards can lead to overloading and potentially cause a fire.
  • Overload Protection: Use powerboards with overload protection, automatically cutting off power if the load exceeds safe levels.
  • Regular Inspections: Check powerboards and cords regularly for signs of damage or wear. Replace any that show signs of distress.

Case Study: A Safe Home in Marrickville

Consider the Jones family living in Marrickville, who needed to connect a TV, gaming console, and a few chargers in their living room. They opted for a high-quality powerboard with surge protection and a 10-amp rating, ensuring it matched their power outlet’s capacity. By calculating the total wattage of their devices, they stayed well under the 2400 watts (10 amps x 240 volts) limit for their outlet, ensuring a safe and efficient setup.

Conclusion and Professional Advice

While powerboards offer a convenient solution for connecting multiple devices, they must be used wisely and within the safety parameters set by Australian standards. Always prioritize safety by choosing quality powerboards with the necessary protection features and being mindful of each outlet’s total load.

If you’re unsure about your home’s electrical setup or need advice on safely using powerboards, it’s best to consult with a licensed electrician. Safety should always come first, especially regarding the electrical systems in your home.

Have more electrical questions? Feel free to submit them for our next “Ask an Electrician” post. Stay safe and stay powered!


Meet Steven, owner of Mr Sparky and seasoned professional electrician in Sydney. With more than 15 years of experience in taking care of the electrical needs of Sydney’s residents, Steven loves to share his expertise and knowledge to ensure everyone is electrical safe. Need an electrician in Sydney – give Mr Sparky a call


You might also like


Let’s get your Electrical Problems Fixed
Our Team is Ready to Assist, just Fill in the Form