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Tab Busbar

You specify the properties for the power dissipation calculation of busbars on this tab.

Overview of the main dialog elements:

Rail cross-section:

The rail cross-section is calculated from the values for height and width or is taken from the data sheet of the manufacturer.

Rail material:

The following materials can be selected:

When the material "Copper, Cu-ETP – CW004A" or "Aluminum, EN AW-1350A" is selected, the input boxes Specific electrical conductivity at +20°C and Temperature coefficient are filled out automatically. The input boxes are write-protected afterwards.

Specific electrical conductivity at +20 °C:

The specific electrical conductivity is specified in the unit MS/m (= MegaSiemens per meter). At the material "Copper, Cu-ETP – CW004A" the value amounts to 57 MS/m, at the material "Aluminum, EN AW-1350A" 35 MS/m. Values for other materials have to be taken from the associated data sheet.

Temperature coefficient:

The temperature coefficient describes the relative change of the electrical resistance of a busbar depending on the material and temperature referenced to a reference temperature of 20 °C. Values for the materials "Copper" and "Aluminium" are automatically entered. Values for other materials have to be taken from the associated data sheet.

See also