wire gauge and circuit breker match

Discussion in 'The Projects Forum' started by samjesse, Mar 3, 2018.

  1. samjesse

    Thread Starter Senior Member

    Sep 14, 2008

    I need help choosing the correct wire and circuit breaker, I am doing my office 100sqm with new 15 of 600x600 LED panels 38w each http://auroralighting.com/au/ProductDetail/AU-LP100CAK

    They will be all on one circuit, the longest distance from the sub panel will be 20 meters.
    What wire gauge and circuit breaker amp do I need?

    I am thinking:
    total watt 38 x 15 = 570watt
    circuit amp 570 / 220v = 2.6amp
    so a 5amp circuit breaker with a wire that more than 5 amp rating will do, like 18 gauge wire.

    Am I thinking right?

    Thank you
    Last edited: Mar 3, 2018
  2. Picbuster

    Well-Known Member

    Dec 2, 2013
    Use the standard: 1.5 sq mm phase and 2.5sq mm for null wire and 2.5 earth.
    if you not running the wires in a pipe use 3x1.5 sq mm cable (stiff core) or 3x1 sq mm ( flex core).
    fuse 10 amps or the std one 16 Amps.