Security Vulnerabilities Created By Key Switches - Silva Consultants
Key operated switches, commonly called "key switches", are used at many the building's regular key system, requiring that separate keys for the switch lock be Phillips-head screws have been used to fasten the key switch plate to the wall.
Hubbell Wiring Device - Kellems - Wallplates and Covers - Steven
Pre-Marked “EMERGENCY” and Barrel Key Switch Wallplates. . . . . . . . .N-17 Weatherproof Switch Plates, Covers and Locking Covers . . . . . . . . . . . .N-24 up to 6-gang. ① Available as a custom wallplate, see pages N-32 to N-36. Single 15/20A Straight Blade or 15A Twist-Lock® Receptacle Wallplates. Description.