Securitron MKSA ADD Alternate Mortise Switch, SPDT

Control access with confidence using the Securitron by ASSA ABLOY MKSA Alternate Mortise Switch, a robust key switch engineered for reliable, tamper-resistant operation in commercial security environments. This mortise-style key switch features an SPDT (single-pole, double-throw) alternate/maintained action, giving operators positive on/off key control for doors, gates or secure equipment. Built for integration, the MKSA works seamlessly with access control panels, alarm monitoring systems and surveillance setups to centralize security management and reduce false alarms.

Manufactured in the US, the MKSA delivers durable performance in high-traffic areas and harsh conditions, minimizing maintenance and downtime. Its mortise-compatible form factor streamlines installation into existing door hardware, saving time for installers and facility teams. Whether you’re specifying components for a new access control project or retrofitting an institutional site, this key switch provides predictable, professional-grade control for critical security points. Add the Securitron MKSA to your access control and monitoring toolkit to enhance physical security and operational efficiency—contact your distributor or order today.

• Provides secure, tamper-resistant keyed control for access points—ideal for guard stations and restricted doors
• Alternate (maintained) SPDT action offers dependable on/off key control for access control and monitoring workflows
• Mortise-compatible design simplifies integration with existing door hardware and reduces installation time
• Heavy-duty, US-made construction for long service life in high-traffic commercial and institutional environments
• Easy interface with access control, alarm and surveillance systems to centralize door control and improve operational security