Welcome to the AS/NZS 3000:2018 DC Cable Size Calculator, your go-to tool for selecting the correct DC cable sizes in full compliance with the AS/NZS 3000:2018 standards. Whether you’re designing a solar system, electric vehicle charging setup, or any other DC-powered electrical system, our tool ensures that your cables are sized correctly for safety and efficiency.

The AS/NZS 3000:2018 standard outlines the requirements for electrical installations in Australia and New Zealand, including cable sizing to ensure maximum performance, minimize risks of overheating, and maintain energy efficiency. Our easy-to-use calculator helps you quickly determine the optimal DC cable size, based on your specific installation parameters.






Nominal cable rating is based on 30°C. Corrections are applied if conditions differ.

Select the installation method that best describes your conditions.

Choose the grouping category that fits your cable installation setup.


Why Proper DC Cable Sizing Matters

Incorrect cable sizing can lead to various operational and safety issues, such as:

  • Overheating: Undersized cables may overheat under high load, increasing fire risks.
  • Voltage Drop: Poorly sized cables can lead to excessive voltage drop, reducing system performance.
  • Equipment Damage: Using incorrect cable sizes can cause equipment to fail prematurely due to insufficient power delivery.
  • Compliance Risks: Not following standards could result in safety violations and costly fines.

Using our DC Cable Size Calculator ensures your electrical system is both safe and compliant.

How the AS/NZS 3000:2018 DC Cable Size Calculator Works

Our calculator requires basic system details to help you calculate the correct cable size. You will need to provide the following:

  • System Voltage
  • Current (Amperage)
  • Cable Length (Distance)
  • Cable Material (Copper or Aluminum)

Once you enter these details, our tool will provide the ideal DC cable size according to the AS/NZS 3000:2018 standards, ensuring your installation meets safety and performance regulations.

Key Features of the AS/NZS 3000:2018 DC Cable Size Calculator

  • Compliant with AS/NZS 3000:2018: Ensure your system meets the latest Australian/New Zealand cable sizing standards.
  • Fast, Accurate Results: Get instant and precise cable size recommendations for your DC electrical systems.
  • User-Friendly Interface: No complex technical knowledge required—simply input your system details and let the calculator do the work.
  • Supports Different Systems: Whether for solar energy, EV charging, or any DC-based system, our calculator is adaptable to your needs.

Start Sizing Your DC Cables with Confidence

Ensure the safety and efficiency of your DC electrical installations today. Use our AS/NZS 3000:2018 DC Cable Size Calculator to quickly find the right cable size for your project. By using this tool, you can avoid costly mistakes, stay compliant with industry standards, and enhance your system’s reliability.

Visit www.calcsquick.com to start sizing your cables now.

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