Schlage Electronics M490DE Delayed Egress Magnetic Lock

Product Description

The SCHLAGE ELECTRONICS M490DE is a single delayed egress magnetic lock designed for controlled exit applications in commercial and institutional settings. Delayed egress locks hold a door secure and trigger an alarm when the exit device is activated, then release after a timed delay — providing life-safety egress while deterring unauthorized exit. The M490DE measures 13.6 inches in length, 5.8 inches wide, and 3.6 inches in height, and weighs 13.7 pounds. Licensed electricians and access control technicians are the primary installers of this hardware in corridors, stairwells, and perimeter doors where code-compliant delayed egress is required.

The M490DE is suited for commercial buildings, multi-family residential properties, healthcare facilities, and institutional structures where exit control and life-safety compliance intersect. Typical installations include single-door openings in areas such as emergency egress corridors, retail loss-prevention exits, and secured perimeter doors. The lock integrates into access control systems that require a monitored, timed-release egress solution at high-traffic or controlled exit points.

Key Features

• Delayed egress function holds door locked and initiates alarm upon exit attempt, then releases after timed delay
• Magnetic locking mechanism provides secure hold without mechanical latching components
• Compact form factor at 13.6 x 5.8 x 3.6 inches suits standard single-door applications
• Sold as a single unit, suitable for individual door openings
• Designed for commercial, institutional, and multi-family access control installations

Compatibility

Designed as an OEM-style delayed egress magnetic lock for single-door commercial and institutional access control applications requiring timed egress release.

Installation Notes

Installation should be performed by a licensed electrician or credentialed access control technician in accordance with applicable NEC and local building codes. Disconnect all power to the door control circuit before mounting or wiring the lock. Verify that the door frame and header structure can support the hardware weight and that the installation meets applicable life-safety code requirements for delayed egress devices, including required signage and alarm integration. Do not energize the unit until all wiring connections and door alignment have been confirmed.