Von Duprin QEL3549AEO LBL | Grade 1 Concealed Vertical Cable Less Bottom Latch Exit Device For Hollow Metal Single and Double Doors with Quiet Electric Latch Retraction, Smooth Mechanism Case
The Von Duprin QEL3549AEO LBL is a grade 1, concealed vertical cable less bottom latch exit device. The Von Duprin QEL3549 LBL is built for single and double hollow metal doors. The device comes with a smooth mechanism case and fits door stiles as narrow as 2 1/8" (44 mm). The Von Duprin QEL3549 LBL is a great alternative to use in place of a concealed vertical rod device, especially when installation situations are less than ideal. For example if the top latch, device centerline and bottom latch are not vertically aligned, then the flexibility and slack in the cable system comes to the rescue. Another advantage of a concealed vertical cable exit device like this Von Duprin QEL3549-LBL exit device is that it requires less maintenance over its lifetime than a traditional concealed vertical rod device.
The Von Duprin QEL3549LBL concealed vertical cable exit device features quiet electric latch retraction. The quiet electric latch retraction is an alternative to electric latch retraction and like electric latch retraction allows latchbolt to be retracted remotely. The difference between an exit device with quiet electric latch retraction such as this Von Duprin QEL3549-LBL and an exit device with electric latch retraction is that the qel can be used in places where low operational noise is desired, such as hospitals, libraries, museums and theaters.
Specifications of Von Duprin QEL3549A LBL Concealed Vertical Cable Less Bottom Latch Exit Device with Quiet Electric Latch Retraction
Device lengths
2' 2' (610 mm) door size
3' 2'4' to 3' (660mm to 914mm) Door size
4' 2'8" to 4' (813mm to 1219mm) Door size
Device centerline from finished floor
39 13/16" (1006mm)
Center case
8 13 /16" x 1 9/16" x 2 13/32" (208mm x 40mm x 62mm)
Mechanism case
2 1 ⁄4" x 2 1 ⁄4" (57mm x 57mm)
Projection
Pushbar neutral – 3 13/16" (97mm)
Pushbar depressed – 3 1/16" (78mm)
Latch bolt
Deadlocking anti-friction top and bottom bolt 1/2" (13mm) throw
Door undercut
3⁄4" (19mm) maximum
Top and bottom latch case
5 13/16" x 1 1/4" x 1 7/16" (147mm x 32mm x 37mm)
Vertical cables
7/32" (6mm) diameter stainless steel cables
Finishes
605, 606, 612, 619 (35A only), 625, 626, 626AM, 628, 710, 711
Fasteners and sex bolts (SNB)
Includes 1 3/4" (44mm) – 2 1/4" (57mm) metal doors
#425 SNB furnished standard for end case
#325 SNB furnished standard for EO (exit only device)
Features available for Von Duprin QEL3549 CVC LBL QEL Exit Device
Electrified options
ALK Alarm exit kit
CX Chexit delayed exit
EL Electric latch retraction
ESL Emergency Secure Lockdown
HD-EL Electric latch retraction with hex dogging
LX Latch bolt monitor switch (For 33/3549A devices, LX switch monitors trim input or electric dogging of EL/QEL devices. LX switch does not monitor latchbolt condition.)
LX-RX Request to exit / latchbolt monitoring (For 33/3549A devices, LX switch monitors trim input or electric dogging of EL/QEL devices. LX switch does not monitor latchbolt condition.)
QEL Quiet electric latch retraction
RX Request to exit,
WP-RX waterproof option
RX-LC, LX-LC, LX-RX-LC, Low current option for RX, LX, LX-RX
SS Signal switch
CON Allegion Connect
Misc options
GBK Glass bead kit
INS-2/INS-4 Insulclad kits 1/2" / 1/4" panels
LBL Less bottom latch
PL Pullman latch
PN Pneumatic
SEC Security screws
SG Safety glow
SNB Sex bolts
Dogging feature
Hex dogging standard
CD Cylinder dogging
CDSI Cylinder dogging with security indicator
HDSI Hex dogging with security indicator
LD Less dogging
Please fill out a Quote Request Form, if you do not see an option listed.
Strikes
299 Top
399 Bottom
- Option:Choose Finish (Click here to see our Detailed Door Hardware Finish Guide):
- https://blog.locksandsafes.com/2020/07/28/lock-and-door-hardware-finishes/
