Silver Electric Contacts - TAIWAN ELECTRIC CONTACTS CORP .

	Electrical Contact Tips		Common types of Contact Tips
	Design Reference of Internal Oxidation Contact Tips		Design Reference of Powder Metallurgy Contact Tips

Company History

Common types of Electric Contact Tips

Silver Electric Contact Rivets

Silver Electrical Contact Tips

Silver Electric Contacts
and Switches

Green (Environmental
Protection) Electric Contacts

What is the most suitable dimensions and materials for different switches used under diverse electric current? It’s hard to fix a formula since the structure design for numerous switching appliances all differs and the contact materials are increasingly developed. We could only make the choice according to experience from the test result. The main factors might effect the electric performance as stated below:

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First Electric
Contacts Corp.

	(1)Switch Type:	For magnetic contactors, relay or circuit breaker which are tested under
		different test condition, the adopted contact material and size are
		different.

	(2)Switch Structure:	Such as spring press, arc-suppression design, heat-dissipation
		condition and breaking time should be considered while choosing
		material and design the contact dimensions.

	(3) AC or DC:	DC switches are liable to material transfer and large welding. The
		contact area for DC switch is required by 10%~30% larger than that
		used in AC ones.

	(4) ElectricProperties:	The main factors also include normal electric current, at-make
		current, voltage, electrical life, heat rising limit, etc.

The Silver Institute

Shanghai Nonferous Metals　

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Taiwan, R.O.C.
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