Electrical Wiring Colours (Australia)
Electrical Wiring Colours (Australia)
Brown, blue, green-yellow — the current Australian wiring colours, and the old red and black you will still find in pre-2000 homes. Mix them up and someone gets hurt.
Current — single phase (AS/NZS 3000)
| Active (live) | Brown |
| Neutral | Blue |
| Earth | Green / yellow |
Current — three phase
| L1 / L2 / L3 (actives) | Brown / Black / Grey |
| Neutral | Blue |
| Earth | Green / yellow |
Legacy (pre-2000, still in service)
| Single phase | Active red · Neutral black · Earth green |
| Three phase | Red / White / Blue actives |
Reference and recognition only — electrical work is licensed in every Australian state and must comply with AS/NZS 3000. Where old and new colours meet, label them. If in doubt, isolate and test.
Sources: AS/NZS 3000:2018 (Wiring Rules) · state electrical safety regulators
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