Alarm Controls MCK-4-2 MCK Series Mortise Cylinder Key Switch Station, SPDT Alternate, Single Gang

Deliver secure, dependable access control where it matters most. The Alarm Controls MCK-4-2 key switch station is a single-gang, mortise-cylinder keyswitch engineered for commercial security, surveillance and monitoring applications. Built with a stainless steel wall plate that accepts standard 1-1/8" mortise cylinders (sold separately), this unit brings a professional finish while resisting daily wear and tampering. The SPDT alternate action switch is rated 4A @ 28VDC, making it well suited to operate electric strikes, relays and alarm inputs without compromising reliability. Onboard LEDs run on 12 or 24V AC/DC to provide visible status for operators and simplify integration with access control and alarm systems. Tamper-proof and slotted screws are included to harden installations against vandalism and unauthorized changes. Backed by a lifetime limited warranty from Alarm Controls by ASSA ABLOY, the MCK-4-2 is an ideal choice for facility managers, security integrators and installers who need a compact, robust keyswitch that performs in demanding low-voltage environments. Add the MCK-4-2 to your next access control or monitoring installation for secure, professional results.

• Durable stainless steel wall plate delivers a commercial-grade finish and long-lasting protection for high-traffic security installations
• Accepts standard 1-1/8" mortise cylinders for easy integration with existing door hardware (cylinders sold separately)
• SPDT alternate switch with 4A @ 28VDC contacts provides reliable control of locks, relays and alarm panels
• LEDs operate on 12 or 24V AC/DC for clear visual status and seamless monitoring with security and surveillance systems
• Tamper-proof and slotted screws plus single-gang form factor simplify secure, tamper-resistant installation
• Lifetime limited warranty offers long-term peace of mind for B2B deployments