SDC 1511T Exit Check, Delayed Egress, double door, 1650lb

30% Off MSRP

SDC 1511T Exit Check, Delayed Egress, double door, 1650lb

$1,630.30 $2,329.00


The Exit Check® series incorporates an alternating verbal message, verbal countdown and 80 db tone, plus a large digital countdown display and door release indicator that provides a clear warning or safety for persons without prior knowledge of door operation, including the blind and hearing impaired.

For use with pairs of doors equipped with Exit Sense Bars, surface mounted vertical rod exit devices and concealed vertical rod exit devices with surface mounted triggers and strikes. Activating either door unlocks both doors.

Facility Applications:
•Adult Living Centers
•Retail Stores
•Drug Rehab
•Infant Nurseries
•Psychiatric Care
•Art Galleries

*for use on out-swing doors ONLY

Made in the USA

More Info +

Specify Operation (see Code Compliance .PDF under Documentation below):
Specify Built-in Reset & Control:


Product Details


Typically used on exit doors, when unauthorized egress is initiated when in the locked mode, the SDC Exit Check® delays egress through the door for 15 or 30 seconds. Meanwhile, the person exiting must wait while personnel or security respond. The door unlocks after 15 seconds have elapsed, permitting egress. A signal from the fire life safety system will release the lock for uninhibited egress in an emergency. 30 second delay available where approved.

Self Adjusting Door Movement Sensor

The built-in door movement sensor may only be used with doors equipped with a latch assembly, such as a mechanical lockset or exit device.

The mechanical latch mechanism must be locked on the exterior and unlocked on the interior. From the inside, retracting the door latch and applying pressure causes limited door movement. The built-in activation trigger senses the door movement and initiates delayed egress operation. The self adjusting sensor helps prevent false triggering.

Activation For Non-Latching Doors

The external activation trigger input must be used with doors without latch assemblies, such as latchless glass and herculite doors.

Activation may be triggered by the SDC MSB550 Switch Bar or the SDC Sure Exit®, request-to-exit push bar. A power transfer device is required. Pushing on the requestto exit push bar immediately activates the delayed egress operation.


  • 1511TNAKV (standard) Tandem - 1,650 lbs., voice, tone and digital countdown annunciator, NA (15or30sec) operation, K keyed reset, V aluminum finish
  • 1511TBDKV Tandem - 1,650 lbs., voice, tone and digital countdown annunciator, BD (15sec) operation, K keyed reset, V aluminum finish

Electrical Specifications

  • Input Voltage
    • Dual voltage Sensing 12/24 VDC ± 10%
  • Standard 1650lbs Holding Force - 1511T
    • 1500mA @ 12VDC
    • 850mA @ 24VDC
  • Energy Saver 1200lbs Holding Force - 1511T (E option)
    • 650mA @ 12VDC
    • 400mA @ 24VDC
  • Inputs
    • Request to Exit: Normally open, dry
    • Fire Alarm Release: Alarm panel closed dry contact. Opening of contact releases lock

Mechanical Specifications

  • Master: 11 inches L x 2-3/4 inches H x 2-5/8 inches D (279 x 70 x 67mm)
  • Slave: 11 inches L x 2-3/4 inches H x 2-5/8 inches D (279 x 70 x 67mm)
  • Armature: 7-3/8 inches L x 2-3/8 inches H x 9/16 inches D (187 x 60 x 14mm)

Code Compliance

  • NA Model: NFPA 101, IBC, IFC
  • ND Model: California Building Code, NFPA 101, IBC, IFC
  • BD Model: BOCA National Building Code 15 second fixed exit delay, 0/1 second nuisance delay, auto reset 30 seconds after door closure
Also Known As
1511tNAPV, SZ-1511tNAPV, SDC-1511tNAPV
SDC Security
Manufacturer Warranty
2 Year
Model Number
Power Requirements
Status Monitor
UPC Code

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