Using our online calculator, calculate the maximum continuous current rating for busbars using width, thickness, and material. With the aid of a correction factor (k2), the continuous currents specified in the follow-ing table may be adjusted to alternative oper-ating temperatures. The current rating is calculated from the conductor cross-sectional area, material (copper or aluminium), and maximum. Power distribution Rated currents of busbars E-Cu (DIN 43 671) DIN 43 671 specifies the continuous currents for busbars at an ambient temperature of 35°C and an average busbar temperature of 65°C. What Is a Busbar? What Is a Busbar? A busbar is a metallic conductor used to distribute electrical power efficiently within electrical panels, switchboards, and. The Busbar Current is calculated using the following formula: Where, Ibb – Busbar Current (A) w – Width (in millimeters) t – Thickness (in millimeters) MF – Material Carry Capacity Factor (amps/mm 2) To find the busbar current, multiply the width & thickness together, then multiply by the material. This article is for manufacturing, testing of non-segregated Bus Bars and Bus Ducts rated 600 V to 35 kV as per international standard ANSI C37. Main keywords for this article are Bus Bars and Bus Ducts Design Requirements, ANSI C37.