# How do I know my electrical cable size Australia?

Nov 20, 2019

## How do I know my electrical cable size Australia?

Cable is sized by its CROSS. SECTIONAL AREA also commonly called SQUARE, as in square mm. For example a 6mm² or 6mm square single wire has a diameter of 2.77mm. Metal Gauges: Wire gauge tables should NOT be confused with Gauges used to identify thickness of sheet metal.

### How many amps will #4 copper wire carry?

Ampacities of Wire Types (w/ Temp Rating) @ 0-2000 Volts

Wire Size AWG TW, UF (140°) FEPW, RH, RHW, THHW, ZW, THWN, XHHW, THW, USE (167°)
4 70 85
6 55 65
8 40 50
10 30 35

What size wire do you need for a 20 amp?

For a 20 amp circuit, use 12 gauge wire. For a 15 amp circuit, you can use 14 gauge wire (in most locales). For a long run, though, you should use the next larger size wire, to avoid voltage drops. 12 gauge is only slightly more expensive than 14 gauge, though it’s stiffer and harder to work with.

What is the correct size wire for 60 amp service?

Size of wire for 60 amps should be minimum 6 square mm. #6 AWG should do the trick. It will though, also depend on the wire insulation, distance to the panel and also the duty cycle of the appliance.

## What is the ampacity for 8 AWG wire?

The ampacity of 8 AWG is 40A if you are intending to use NMC cable for this application. Now even if the terminals are rated for 75 degrees you would be sizing based on 60 degrees because of if being NMC. Now be it other than NMC and you have some options…..be it NMC you are limited to the 60 degrees maximum. 334.80 Ampacity.�

### What gauge wire for 50 amp breaker?

The minimum wire gauge for a 50-amp breaker is eight gauge, and if the current draw is expected to remain close to the 50-amp limit for an extended period, you should use six-gauge wire.