Sdc 1581SNDVD Delayed Egress Electromagnetic Lock

Product Description

The SDC - SECURITY DOOR CONTROLS 1581SNDVD is a delayed egress electromagnetic lock designed for controlled access applications where timed exit release is required by code. The unit combines an electromagnetic holding magnet with an integrated timer and a door position switch (DPS) in a single assembly. When an exit attempt is made, the timer activates a programmed delay before releasing the lock, providing an audible or visual alert window. Licensed access control and low-voltage electricians install this hardware on doors requiring compliant delayed egress per NFPA 101 Life Safety Code.

This electromagnetic lock is intended for use on interior or perimeter egress doors in commercial and institutional facilities such as schools, hospitals, retail environments, and secure storage areas. The built-in timer eliminates the need for a separate delay module, and the door position switch provides real-time door status feedback to the access control panel. It is suited for single-door installations where monitoring and delayed release are both required in one device.

Key Features

• Integrated delay timer eliminates need for external delay relay or module
• Door position switch (DPS) provides door-open or door-closed status signal to access control panel
• Electromagnetic holding force keeps door secured until timed release cycle completes
• Single-assembly design simplifies wiring and reduces installation time
• Designed to support NFPA 101 delayed egress compliance requirements

Compatibility

Designed as an OEM-style delayed egress electromagnetic lock for commercial door access control systems requiring integrated timer and door position monitoring in a single unit.

Installation Notes

Installation should be performed by a licensed low-voltage electrician or certified access control technician familiar with NFPA 101 delayed egress requirements. Disconnect all power to the access control panel and door hardware circuits before wiring. Verify that the door frame and mounting surface can support the holding force of the magnet prior to fastening. Local AHJ approval may be required before placing a delayed egress device into service.