Alarm Controls MCK-1-2 MCK Series 1.75" Mortise Cylinder Key Switch Station, SPDT Alternate

Designed for reliable, commercial-grade access control, the Alarm Controls by ASSA ABLOY MCK-1-2 Mortise Cylinder Key Switch Station delivers secure, tamper‑resistant switching where dependable operator control is required. This SPDT alternate-action key switch toggles between open and closed states every key turn, making it ideal for door release, egress control and monitored entry points in security, surveillance and building automation systems. The stainless steel wall plate accepts standard 1-1/8" mortise cylinders (sold separately) and houses a compact switch with 1-1/4" depth behind the plate for clean, low-profile installations. Contacts rated 4A at 28 VDC support common locking hardware such as strikes and maglocks, while optional green/red LED indicators operate on 12 or 24 VAC/DC to provide instant visual status for installers and security staff. Tamper-proof and slotted screws are included, and a lifetime limited warranty ensures long-term peace of mind. Choose the MCK-1-2 to streamline access control deployments—order now or specify it for your next monitored entry or surveillance integration project.

• Robust stainless-steel faceplate built for high-traffic entrances and long-term reliability
• SPDT alternate action lets users toggle access states easily for controlled egress and secure entry
• 4A@28VDC contact rating supports door strikes, maglocks and integration with access control/monitoring systems
• Optional LED status indicators (12/24 VAC/DC) provide clear visual feedback for security and surveillance operators
• Tamper-proof screws and standard 1-1/8" mortise cylinder compatibility simplify installation and maintenance
• Available weather-resistant cover and pneumatic time-delay options for outdoor or timed-release applications