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Welcome to our Wiki of electrical contacts

The basis of this Wiki is the 2012 issue of the "DODUCO Data Book of Electrical Contacts" which is also available in printed form.
To get your desired information, please use:

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For further questions or help, please contact us directly under Contact DODUCO

Featured Article

Contact Physics – Formulas

Contact Physics – Formulas

• Constriction resistance

(Single spot contact according to Holm; circular touching spot between clean

contact surfaces)

(Multi-spot contact according to Holm without influence between the N

individual spots)

(Multi-spot contact according to Greenwood considering the influence between

the spots)

• Contact resistanc...