Draper 3-Position Key Control Switch KS-3

The KS-3 is a three-position key control switch - up, off, down - that secures single-station directional control of a Draper screen or projector lift behind a key. Two keys are supplied with it.

Inside are two cam-operated single-pole, single-throw contact blocks wired together to emulate a single-pole, double-throw switch with centre off, and the action is maintained rather than momentary, so the screen keeps running once the key is turned. The stainless steel cover plate measures 2-3/4 by 4-1/2 inches and fits a standard single-gang box. It is UL listed, CSA recognised, and rated for 110V current.