Securitron MK Mortise Key Switch, Momentary, Single Gang

For secure, user-controlled access and alarm functions, the Securitron by ASSA ABLOY MK Mortise Key Switch delivers dependable momentary control for locks, alarm arming, resets and overrides. Designed for integrators and facilities managers, this mortise key switch provides a 5 Amp rated plunger for reliable switching and supports 12V or 24V DC power, making it compatible with most access control and alarm panels. The stainless-steel body and included anti-tamper screws protect high-traffic openings while the built-in bi-color LED gives instant visual status for monitoring and troubleshooting. A versatile backing bracket accepts common 1-1/4" or 1-1/8" mortise cylinders, enabling easy retrofit into existing security and surveillance installations. Ideal for commercial, institutional and critical infrastructure environments, the MK simplifies secure entry control and integrates seamlessly with your security, surveillance and monitoring systems. Add a proven, professional-grade key switch to your access control lineup — contact us for cylinder options and installation guidance or order the MK for fast deployment.

• Secure, momentary control for locks and alarms — enables reliable access control and quick resets with a 5A rated plunger switch
• Easy integration with standard mortise cylinders — flexible backing bracket fits 1-1/4" or 1-1/8" mortise installations to simplify retrofits
• Visual status feedback with standard bi-color LED (12/24V DC) — improves monitoring and troubleshooting for security and surveillance systems
• Robust stainless-steel construction and anti-tamper screws — durable indoor performance and tamper-resistant protection for high-use areas
• Dual-voltage compatibility (12V/24V DC) — works with common alarm, access control and monitoring power systems for straightforward deployment