ANSI:

American National Standard Institute; a standard-setting agency of the United States which approves the design and/or performances of electronic/electrical components distributed in the world market.

Capacity:

Usually refers to the current handling capability of a switch.

Arc:

Gaseous electrical discharge between separated contacts of a switch, involving a stream of electrons, metal vapors and ions.

Active Area (contact):

Electrical junction comprising a multitude of contact a- spots through which electrical current passes from one connector component to the other.

Actuation Force:

The force required to change a switch actuator from one position to another. Measured exactly when switch changes state. Torque for rotary products.