Alarm Controls MCK-6-4 MCK Series Mortise Cylinder Key Switch Station, DPDT Alternate, Single Gang, Green/Red LED

Secure, intuitive control for perimeter and interior doors is the primary benefit of the Alarm Controls by ASSA ABLOY MCK-6-4 mortise key switch. Designed for access control and security professionals, this single-gang mortise key switch uses a DPDT alternate action to reliably toggle lock circuits each time the key is turned. Built from stainless steel and backed by a limited lifetime warranty, the MCK-6-4 stands up to heavy use in commercial, industrial, and institutional environments.

Integrated green and red LEDs provide clear visual status and operate on 12 or 24 volts AC or DC for easy integration with surveillance, monitoring, and access control panels. Switch contacts are rated at 4A @ 28VDC to drive low-voltage strike and lock hardware. The mortise cylinder is not supplied (models CY-1 and CY-1A available separately), and weather-resistant covers plus a surface-mount back box are available for exposed installations.

Specify the MCK-6-4 when you need a robust, serviceable key switch that streamlines secure entry management. Order now for retrofit or new-access control projects and improve the reliability of your security system.

• Durable stainless steel housing delivers long-term reliability for commercial access points
• DPDT alternate action provides a dependable toggle control ideal for access control and security workflows
• Dual green/red LEDs offer instant visual status at 12/24V AC/DC for monitoring and surveillance integrations
• Single-gang form factor for straightforward retrofit into existing installations; mortise cylinder sold separately
• 4A @ 28VDC contact rating supports low-voltage door hardware and locking devices used in security systems
• Weather-resistant cover and optional surface-mount back box simplify outdoor or exposed-mount deployments