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

Operation

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 request to exit push bar immediately activates the delayed egress operation.

Model

• 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

Specifications

• Model: 1511T Exit Check Delayed Egress (Double Door, Tandem)
• Manufacturer: SDC
• Holding Force: 1650 lbs
• Voltage: 12 VDC or 24 VDC +/-10% (dual voltage sensing)
• Current Draw (1650 lbs): 1500 mA at 12 VDC; 850 mA at 24 VDC
• Current Draw (E option, energy saver, 1200 lbs holding force): 650 mA at 12 VDC; 400 mA at 24 VDC
• Delay Time: 15 or 30 seconds (30 seconds where approved)
• Master Size: 11 inches L x 2-3/4 inches H x 2-5/8 inches D (279 mm x 70 mm x 67 mm)
• Slave Size: 11 inches L x 2-3/4 inches H x 2-5/8 inches D (279 mm x 70 mm x 67 mm)
• Armature Size: 7-3/8 inches L x 2-3/8 inches H x 9/16 inch D (187 mm x 60 mm x 14 mm)
• Inputs: Request to exit (normally open, dry contact); fire alarm release (closed dry contact from alarm panel; opening the contact releases the lock)
• Finish: Aluminum
• 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
• Warranty: 2 years
• Features: Voice, tone and digital countdown annunciator; keyed reset