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Catalogue Products

 

Minimum Size of Copper Earthing Conductors

Nom. area active conductorsFor copper active conductorsFor aluminium active conductors
mm2 mm2 mm2
1 1.0*
1.5 1.5*
2.5 2.5
4 2.5
6 2.5 2.5
10 4 2.5
16 6 4
25 6 6
35 10 6
50 16 10
70 25 10
95 25 16
120 35 25
150 50 25
185 70 35
240 95 50
300 120 70
400 120 95
500 120 95
630 120 120

* Refer Wiring Rules, AS/NZS 3000 regarding 1.5 earthing conductors.

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