Electrical Contact & Contact Assemblies

• The electrical design factors like magnitude of current and voltage, type of load and contact protection
• The mechanical design factors, frequency of speed of operations i.e., number of make or break operations, chatter, width of contact gap and wipe
• The environmental factors such as emission of gases and fumes on oxidation foreign contaminants and impurities, temperature and humidity
• The economic factors. In other words, the cost of the contact to the customer and its reduction thereby by reducing the proportion of noble metals.

The six broad categories of contacts, covering wide areas of application are:

• Solid Contacts
• Projection Welding Buttons
• Bimetal Contacts
• Contacts on Carriers
• Trimetal Contacts
• Contact Tapes