Alarm Controls MCK-3 MCK Series Mortise Cylinder Station, S.P.D.T. Momentary Switch, 1.75" Wide, Green / Red LED, Stainless Steel

For secure, professional access control and alarm reset applications, the Alarm Controls MCK-3 mortise keyswitch delivers dependable momentary switching and clear status indication. This keyswitch by Alarm Controls (ASSA ABLOY) is ideal for security, surveillance and monitoring installations where tamper resistance and visual feedback matter. The SPDT momentary action switch provides controlled, momentary activation while the red/green bi-color LEDs operate on 12 or 24 VDC to show system state at a glance. Housed on a narrow 1.75" 302 stainless steel plate with tamper-proof slotted-head screws, the unit is built for long life in commercial and institutional settings. It accepts a standard 1-1/8" mortise cylinder (1" cam) for keyed control—cylinders sold separately—making it simple to add keyed access without redesigning panels. With a 4 amp contact rating at 28 VDC and UL/CUL recognized components, the MCK-3 integrates easily into access control and alarm panels for reliable operation. Specify the MCK-3 for guard stations, control rooms, or perimeter gates—contact us to order or learn which mortise cylinder option fits your installation.

• Secure momentary control for access points: SPDT momentary action provides reliable, fail-safe switching for doors, gates and alarm reset stations.
• Clear local status for monitoring: red and green bi-color LEDs (12/24 VDC) give instant visual feedback for security and surveillance staff.
• Durable, low-profile installation: 1.75" 302 stainless steel plate and tamper-proof mounting screws resist vandalism in high-traffic environments.
• Easy integration with keyed access: accepts standard 1-1/8" mortise cylinder (1" cam) to add keyed control without custom wiring changes.
• Commercial-grade reliability: 4A contact rating at 28 VDC and UL/CUL recognized components for dependable performance in access control systems.