Oscillation of the movable contact upon closure of the circuit.

The mechanical interface between the basic switch contacts and the means of operation, such as the operator’s finger.

The required force to change a circuit’s electrical state.

A unit of electrical current flow.

A base of a switch is the main member to which the conducting parts or insulator unit are attached. It may also have parts of the operating or control mechanism attached.

Rebounding of moving contact against fixed contact during transfer.

Interruption of a circuit. Double-break occurs when a single mechanism interrupts two contacts simultaneously.

Usually refers to the current handling capability of a switch.

Rapid opening and closing of contacts, usually exhibited during extreme vibration and/or shock.

Distance through air between electrically live parts of opposite polarity or to ground.