US91 Standard/Deep Keyswitch

Standard/Deep Keyswitch

Dewhurst key switches are designed to complement our range of pushbuttons and indicators and are available in a wide range of options such as plastic or stainless steel finishes, illumination and flat keys or round (high security) keys. They are suitably rated to cater for typical applications in lift installations requiring key switch control such as fans, lighting and transfer of car operation controls.

Styled to match pushbutton ranges
Numerous key options
Contact block configurations for all requirements
Key switch function can be engraved on the face of the key switch itself (US91 = round) switches only
LED halo red illumination (flat key only)

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I-Key – Security Electronic Access Switch

The Dewhurst I-KEY Security Access Switch is a general purpose security module. It uses iButton type touch memories to identify the keys. If a predefined key touches on the stainless steel probe, I-KEY shorts the relay contacts for five seconds and leaves the contacts open after this period. I-KEY warns the user with visual and auditory ways with on-board beeper and in-probe LED ring. I-KEY can be easily programmed with on-board pushbuttons. The end users can create their own MASTER KEY to record a new key to the module memory.

Offers control of lift
When a registered key is put onto the probe, relay keeps contacts for 5 seconds.
When a foreign key is put onto the probe, system makes audible warning with red light.
To register, a new key is put onto the probe while the REC button on the unit is pressed
Up to 512 keys kept in memory

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M-20 Keyswitch

Available in round format only
Stainless steel or brass options
Flat key barrel (L&F) option or;
Radial key barrel option (high security)
Studless mounting
Can accommodate 1.0 mm to 3.0 mm faceplates
Range of key options
Wide range of contact configurations

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US90 Standard/Deep Keyswitch

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)

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Low Profile Keyswitch

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 in lift installations requiring key switch control such as fans, lighting and transfer of car operation control. There are numerous options with regard to key types, release positions and contact configurations. A low profile version of the key switch is also available for use in surface mount car and landing stations.