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SD-991A-D1Q
Mini Electric Door Strike
Manual
Features:
Mini fail-secure electric door strike
12VDC operation
Includes no-cut and low-cut strike plates
Door remains locked if power is lost
Reversible non-handed design
Can be used with almost any cylindrical
door locking system
Suitable for office-type applications
Compatible with di
switches and other entry devices
ital keypads, pushbutton
SECO-LARM Mini Electric Door Strike
Features:
Converts cylindrical lock sets into an electronic
access-controlled locking system
Fail-secure operation – Door remains locked if
power to the strike is lost
2-wire installation, non-polarized connection
Stainless steel keeper for strength and
long life
Can be used with virtually any cylindrical door
locking system
Can be used with an optional digital keypad,
pushbutton switch, etc.
Parts List:
1x Door strike 2x Mounting screws 2x Splice connectors
2x Strike plate screws 1x Mounting template 1x Manual
1x Stainless steel no-cut strike plate
(SD-991SS-61Q/S)
Specifications:
1x Silver low-cut strike plate
Suitable for office-type applications
Reversible non-handed design fits either
right-hand or left-hand doors
Shallow design for use with most metal doors
Powered by a solenoid, not a buzzer coil
For indoor use only
Optional bronze low-cut strike plate
(SD-991RA-61Q/B) available:
o Fits most metal or wood doors with
minimum cutting of door frame beyond the
hole for the strike
(SD-991RA-61Q/A)
Operating voltage 12VDC
Current draw 280mA@12VDC
Holding force 1,000-lb (454kg)
Endurance 250,000 Cycles (Factory tested)
Latch throw
Keeper
width
Operating humidity 0~85% (Non-condensing)
SD-991SS-61Q/S 1
SD-991RA-61Q/A or B 13/16" (30mm)
1
/2" (13mm)
1
/8" (28mm)
Operating temperature 14°~120° F (-10°~49° C)
Overview:
13/4"
(45mm)
Stainless Steel No-Cut Plate
SD-991SS-61Q/S
23/4" (70mm)
21/8" (54mm)
11/8"
(28mm)
11/8"
(28mm)
(43mm)
Silver/Bronze Low-Cut Plate
SD-991RA-61Q/A or B
23/4" (70mm)
21/8" (54mm)
13/16"
(30mm)
111/16"
11/8"
(28mm)
17/16"
(36mm)
1
/8"
(3mm)
1"
(25mm)
1
/2"
(13mm)
11/2"
(38mm)
1
/16"
(2mm)
15
/16"
(24mm)
5
/8"
(16mm)
SECO-LARM U.S.A., Inc. 2
SECO-LARM Mini Electric Door Strike
Installation:
For Timely® interior door frames (see Fig. 1):
The no-cut door strike should fit into the door strike cutout of
Timely interior door frames without making any new cuts or
screw holes. However, in rare cases because of how the door
latch was installed, it may be necessary to cut out a small piece
of the frame, or drill new screw holes.
®
For non-Timely
interior door frames:
1. Measure the center line (see Fig. 2):
a. Measure the distance from the floor to the center
of the door latch. Ignore the location of the
deadlatch pin when taking measurements.
2. Measure the latch line (see Fig. 3):
a. Measure the distance from the door latch to the
edge of the door jamb. This is the “door latch line”.
3. Align the included mounting template to the latch line
and center line (see Fig. 4).
4. Using the template as a guide, cut a hole in the frame
to fit the door strike. In most cases, the surface-mount
no-cut strike plate will work.
5. In the rare case where a deeper cut into the frame is
needed to match the door latch, use the template to
cut out space for the low-cut strike plate.
6. Mount the electric door strike with the appropriate
strike plate into the hole to ensure it does not interfere
with the closing of the door, and that it properly
catches the door latch. Make adjustments if needed.
Wire the electric door strike (see Fig. 5):
1. Connect the two wires of the electric door strike to
the wires from the access control or egress device
(keypad, pushbutton switch, pushbar, etc.), and
insulate with electrical connectors or electrical
tape. Polarity is not important. Make sure no bare
wires are exposed.
2. Conceal all wires in the door frame.
3. Tightly mount the electric door strike to the frame
with the included door frame mounting screws.
Fig. 1
Metal frame Wood frame
Fig. 2
Center line
Fig. 3
Door latch line
Fig. 4
Door jamb
Latch line
Fig. 5
Door jamb
Door latch
Door jamb
Door latch
Deadlatch pin
Center line
Mounting
template
SECO-LARM U.S.A., Inc. 3
SECO-LARM Mini Electric Door Strike
(
A
Troubleshooting:
Unmount the strike and check that the two wires are
connected properly
Ensure the wires are connected to a 12VDC source
Use a multimeter to test that the strike is receiving the
Electric strike does not activate
proper voltage and amperage. If it is not, it may be
necessary to use heavier gauge wires, or increase the
output of the power supply
Make sure the activation device (keypad, pushbutton
switch, etc.) is working properly
Check that the door latch is operating properly and
Door does not open when the electric strike
is activated
replace if necessary
The position of the electric strike may need to be adjusted
by moving it or adding washers or shims
Also Available from SECO-LARM®:
Surface-Mount Electric Rim Strike No-Cut Door Strike Vandal Resistant Outdoor Access
Control Keypad
SD-998C-NUQ SD-993C-D3Q SK-1123-SDQ
Electric Door Strike for
Metal Doors
Push-to-Exit Bar
Single Door Maglock
600-lb Holding Force
SD-995C SD-961A-36 E-941SA-600
WARRANTY:
service for one (1) year from the date of sale to the original customer. SECO-LARM’s obligation is limited to the repair or
replacement of any defective part if the unit is returned, transportation prepaid, to SECO-LARM. This Warranty is void if
damage is caused by or attributed to acts of God, physical or electrical misuse or abuse, neglect, repair or alteration,
improper or abnormal usage, or faulty installation, or if for any other reason SECO-LARM determines that such equipment
is not operating properly as a result of causes other than defects in material and workmanship. The sole obligation of
SECO-LARM and the purchaser’s exclusive remedy, shall be limited to the replacement or repair only, at SECO-LARM’s
option. In no event shall SECO-LARM be liable for any special, collateral, incidental, or consequential personal or property
damage of any kind to the purchaser or anyone else.
NOTICE: The SECO-LARM policy is one of continual development and improvement. For that reason, SECO-LARM
reserves the right to change specifications without notice. SECO-LARM is also not responsible for misprints.
are the property of SECO-LARM U.S.A., Inc. or their respective owners. Copyright © 2017 SECO-LARM U.S.A., Inc. All
rights reserved.
SECO-LARM
This SECO-LARM product is warranted against defects in material and workmanship while used in normal
®
U.S.A., Inc.
16842 Millikan Avenue, Irvine, CA 92606 Website: www.seco-larm.com
Phone:
949) 261-2999 | (800) 662-0800 Email: sales@seco-larm.com
MI_SD-991A-D1Q_170329.docx
SECO-LARM U.S.A., Inc. 4
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