The Dewhurst Keyswitch is the industry standard and has been used for many years on a variety of installations.
They are rated to cater for typical applications lift installations requiring key switch such as fans, lighting and transfer car operation control. There are numerous options with regard key types, release positions and contact configurations.
Also available in round or barrel format
Stainless steel, brass or plastic options
Flat key barrel (L&F) option or:
Radial key barrel option (high security)
Range of key options
Wide range of contact configurations
Depth 42 to 50mm (based on contacts)