Busbar Current Calculator Online

Bus bar current Calculator:

Enter the breadth and thickness of the busbar; do not enter the length of the busbar. Then press the calculate button, you get the aluminium or copper busbar current carrying capacity in amps. You can choose the type of busbar, either aluminium or copper or galvanized bars or iron busbar or silver in the results.

Enter Busbar Width: mm
Enter Busbar Thickness: mm
   
Result – Copper Busbar Current: A
Result – Aluminium Busbar Current : A
Result – Iron Busbar Current : A
Result – GI Busbar Current : A
Result – Silver Busbar Current : A

More details about Bus bar: What is Busbar Current Carrying Capacity Calculation 5 Types of Busbar

Busbar current Calculator working:

As the stated thumb rule that the aluminium carries 0.8 times of the area, copper will be 1.2 times, silver will be 1.6 times, iron and GI will be 0.6 times.

Hence the formula for calculating current carrying capacity,

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Copper:

Copper busbar current carrying capacity = 1.2 * Busbar width in mm * Thickness in mm Amps

Aluminium:

Aluminium busbar current carrying capacity = 0.8 * Busbar width in mm * Thickness in mm Amps

Iron Busbar

Iron busbar current Carrying capacity = 0.6 * Busbar width in mm * Thickness in mm Amps

GI Bus bar

Galvanized busbar current Carrying capacity = 0.6 * Busbar width in mm * Thickness in mm Amps

Silver Bus Bar

Silver busbar current Carrying capacity = 1.6 * Busbar width in mm * Thickness in mm Amps

Example:

Calculate the 150 x 25 mm busbar current carrying capacity in all the above materials,

  • Copper bar carries 4500Amps (1.2 x 150 x 25) current
  • Aluminium Carries 3000 Amps (0.8 x 150 x 25) Current
  • GI Bus Bar Carries 2250 Amps (0.6*150*25) Current
  • Iron Bus bar carries 2250 Amps
  • Silver bus bar carries 6000 Amps (1.6*150*25) Current.

 

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