Securitron MKC-KD Securitron MCK-KD MK Series Mortise Cylinder for MK Series

Convert a standard mortise lock into a dependable key switch for access control, alarm arming and door monitoring with the Securitron by ASSA ABLOY MKC-KD mortise cylinder. Designed for installers and security integrators, this MK Series cylinder plugs into your MK key switch backing bracket to provide robust control of electric locks, alarm panels and supervised inputs.

The MKC-KD supports common installations with 1-1/8" cylinder length (1-1/2" supported via spacer), operates on 12 or 24 VDC, and ships standard with a momentary SPDT contact and a 5A rated plunger for reliable switching. Built-in bi-color LED provides immediate visual status while optional piezo annunciation and DPDT configurations let you tailor behavior for specific surveillance or monitoring needs. Anti-tamper screws and MagnaCare lifetime replacement warranty reduce maintenance and downtime, giving you peace of mind for critical security deployments.

Ideal for retrofit projects, access control upgrades, and integration with alarm or monitoring systems — add the MKC-KD to your security specification or contact our sales team to order.

• Retrofit standard mortise locks into a fully featured key switch for streamlined access control and alarm arming
• Broad compatibility with 1-1/8" mortise cylinders (supports 1-1/2" with spacer) for fast on-site installation
• Reliable electrical performance with 12/24 VDC operation and a 5A rated plunger switch for door and electric lock control
• Visible bi-color LED status for clear operator feedback and optional piezo annunciation for local monitoring
• Tamper-resistant hardware and MagnaCare® lifetime replacement warranty for long-term, low-risk deployments
• Flexible switch options (momentary/alternate, SPDT/DPDT) to fit a variety of security and surveillance applications