What This Article Covers -- and Who It Helps
Delayed egress alarm modules are one of the more misunderstood features in commercial door hardware. If you are a facility manager trying to control unauthorized exit from a memory care wing, a contractor reading a hardware schedule with a 59- or DELR prefix you have never ordered before, or an architect writing a specification for a retail loss-prevention opening, this guide explains exactly how these devices work, what code requirements govern them, and what to verify before you place the order.
What Is a Delayed Egress Exit Device?
A delayed egress exit device is an electromechanical unit that -- when armed -- holds an exit door locked for a brief timed period after the touchbar or push pad is depressed. The device sounds an immediate audible alarm and counts down before releasing the latch. The occupant can always leave; the delay is not a lockout. Per life safety code requirements, egress must be available within the permitted delay window, and the device must release instantly upon fire alarm activation.
The standard delay period is 15 seconds. Some jurisdictions accept up to 30 seconds -- always confirm with the authority having jurisdiction (AHJ) before specifying the longer interval.
How the Alarm Module Actually Works
Inside the exit device, an electronic module -- typically a self-contained PC board assembly with DIP switch programmability -- manages the delay sequence. Here is the basic sequence every installer should understand:
- Bar depressed: The latch is held. An audible alarm sounds immediately at the door -- typically in the 95 dB range -- alerting staff and deterring casual pushers.
- Countdown: The onboard timer runs the programmed delay (15 or 30 seconds depending on jurisdiction and DIP switch setting).
- Release: The device releases the latch and egress is allowed. The device stays in alarm mode until staff manually reset it with a key cylinder.
- Fire alarm override: The power supply must be wired to the fire alarm system. When the FACP trips, power is cut to the device, releasing it instantly for free egress. This is a code requirement, not optional.
Required signage -- typically reading "PUSH UNTIL ALARM SOUNDS -- DOOR CAN BE OPENED IN 15 SECONDS" -- must be installed at the door. Codes including IBC Section 1010 and NFPA 101 Section 7.2.1.6.1 require both the sign and the audible alarm at the opening itself.
Self-Contained vs. Separate Alarm Module Configurations
Not all delayed egress products are built the same way. Understanding the form factor changes how you read a hardware schedule and how the door gets prepped.
Self-Contained (Integrated) Modules
The electronics, solenoid, and alarm are housed entirely within the exit device case. Installation requires running power to the device and connecting to the fire alarm relay. Sargent's 59- Electroguard product line for the 80 Series and PE80 Series is a well-known example of this format. Corbin Russwin offers a similar integrated approach on the ED5000/ED4000 and PED5000/PED4000 platforms.
Plug-In and Modular Assemblies
Some product families use a plug-in insert or PC board that drops into the device during installation. Accentra (formerly Yale) uses this approach on their 6000 and 7000 Series delayed egress exit devices -- available on rim, mortise, SquareBolt, concealed vertical rod, and surface vertical rod configurations. The modular format can simplify field service because the electronics are separable from the mechanical latch body.
Standalone Alarm Deadbolt Units
For lower-security or retrofit situations, surface-mount alarm deadbolt units -- such as the Alarm Lock Sirenlock series -- provide a battery-powered alarm and deadbolt in a single case. These are not full exit devices in the BHMA sense, but they serve similar deterrent purposes on doors that do not require panic hardware by occupancy load. The Model 715 variant includes a 15-second delayed egress cycle.
Where Delayed Egress Is Permitted -- and Where It Is Not
Delayed egress is a special locking arrangement under both IBC and NFPA 101. It is not permitted on every opening. Typical permitted occupancies include:
- Retail and mercantile -- loss prevention at secondary exits in big-box stores, grocery chains, and department stores
- Healthcare and memory care (I-2) -- controlling wandering patients in nursing homes, assisted living, and behavioral health units; IBC 1010.1.9.6 and NFPA 101 provide specific I-2 provisions
- Business and institutional -- server rooms, government facilities, airports, libraries, and museums where controlled egress reduces security risk
- Educational facilities -- perimeter doors where unauthorized exit is a safety concern
Key code conditions that typically apply regardless of occupancy:
- The building must have a fire alarm system -- the delayed egress device must release upon activation
- Many jurisdictions also require full automatic sprinkler coverage -- verify with AHJ
- Required signage must be posted at the opening
- The audible alarm at the door is mandatory during the delay cycle
- An override or remote unlock capability may be required at a nursing station or fire command center for certain occupancies
Always confirm with the AHJ which edition of IBC and NFPA 101 is locally adopted. Do not assume the 30-second option is available without AHJ approval.
What Has to Be Coordinated Before the Door Ships
Delayed egress devices are not drop-in substitutes for standard exit hardware. Miss any of the following and the opening will either fail inspection or require a costly field fix:
- Power supply: The device requires a UL Listed 24VDC regulated and filtered power supply with a fire alarm relay circuit. Confirm the power budget and wire run before rough-in.
- Wire count: A basic installation may use two wires; a full-featured system with door position switch, remote reset, and monitoring outputs can require up to ten conductors. Get the wiring diagram for your specific model before conduit is pulled.
- Wire transfer method: Delayed egress modules do not have large power inrush, so a standard transfer hinge, door loop, or concealed transfer can typically be used -- but confirm with the manufacturer for your specific device.
- Power transfer hinge requirements: If the exit device also includes electronic latch retraction (DELR configuration), the hinge ampacity requirement increases. Check the ElectroLynx or equivalent hinge compatibility chart for your device model.
- Fire door compatibility: If the opening is fire rated, the exit device must be listed fire exit hardware. Verify that the delayed egress module does not affect the fire label. Any field modification to a fire-rated assembly should be reviewed with a code specialist or the AHJ.
- DIP switch programming: Most self-contained modules ship with factory default settings. The delay time and alarm behavior are set via DIP switches before the device goes in the door. Do not leave this for the end of the job.
- Signage: Required signage is a code item, not an afterthought. Confirm it is on the hardware schedule and ordered with the device.
Preferred Product Lines to Consider
DoorwaysPlus stocks and sources delayed egress exit hardware from lines known for stable product platforms and accessible service parts. For integrated delayed egress modules, Sargent (80 Series and PE80 Series with the 59- Electroguard and DELR configurations) and Corbin Russwin (ED5000/ED4000 and PED5000/PED4000 DELR) are strong specification choices across healthcare, retail, and institutional projects. Accentra (formerly Yale) 6000 and 7000 Series offers flexible form factors including rim, mortise, CVR, and SVR configurations with modular delayed egress inserts -- useful when one device type needs to serve multiple opening conditions on the same project.
Have a schedule to quote or a substitution question? Contact the team at DoorwaysPlus for product availability, compatible power supplies, and specification support.