Results
Enter inputs above, then tap Calculate.
Method and assumptions
Advisory only - select per AS/NZS 3000 and equipment instructions.
RCD selection (advisory)
Review RCD type and sensitivity guidance for the entered load and installation.
General RCD selection guidance. Verify equipment manufacturer instructions, leakage waveform and applicable installation rules.
Related calculators
Check the stated method and limits against your installation. Results are calculation aids, not certification.
Calculator guidanceNew calculator emails
Calculation model 2026-11-02.1