The cross-sectional area is A = I / J, where I is the rated current and J is the current density. For a 2000A copper busbar at 2. This could be achieved with 2 bars of 80mm x 10mm per phase (1600 mm2, allowing margin for heating). A Busbar Size Calculator simplifies this task by automatically determining the required cross-sectional area and dimensions according to international standards like IEC 61439 and NEC 366. Of course the maximum allowable temperature rise for each type of material is also important. Step-4: Round up to the nearest (close value) standard size (10 mm², 16 mm², 25 mm², 32 mm², 40 mm², 50 mm², 63 mm², 80 mm², 100 mm², 125 mm², 160 mm², 200 mm², 250 mm², 320 mm², 400. Calculate the required dimensions and current carrying capacity of bus bars for electrical distribution systems.
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