keyboard operated

Introduced: September 1968

Last revised: January 2006

Full Title

Switches providing a selected number of consecutive operations of the contacts by a single manual actuation of the operating part > Switches with means for setting or mechanically storing a multidigit number > keyboard operated

Classification Context

Section:: ELECTRICITY
Class:: ELECTRIC ELEMENTS
Subclass:: ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES