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SD-998C-NUQ / SD-998C-NUAQ
Surface-Mount Electric Rim Strikes
Manual
Features:
43RG
12/24 VDC Operating voltage
Non-polarized connection
Horizontal adjustment
Accommodates up to
3
/4" Pullman latch
Reversible non-handed design fits either
right-hand or left-handed doors
Surface-mount on metal or wood frames
Works with standard rim-type exit devices
including SECO-LARM SD-962AR-36A
and SD-962AR-36G
For Indoor Use Only
Static strength – 1,500 lbs. (680kg)
Tested for 250,000 cycles (UL Tested)
Low current draw: 540mA@12VDC,
270mA@ 24VDC
Field-selectable for fail-safe or fail-secure operation
The SD-998C series is intended to be used with UL
Listed Exit Hardware
The SD-998C series shall not impair the intended
operation of an emergency unit
The SD-998C series shall not impair the operation
of panic hardware mounted on the door
SD-998C-NUAQ shown
Model # Housing Thickness Latch Throw
SD-998C-NUQ
3
/4" (19mm)
3
/4" (19mm)
SD-998C-NUAQ
1
/2" (13mm)
1
/2" (13mm)
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SECO-LARM Surface-Mount Electric Rim Strikes
2 SECO-LARM U.S.A., Inc.
The SECO-LARM Surface-Mount Electric Rim Strikes are designed with the strength and durability for use
with rim-type exit devices with a Pullman latch bolt (3/4" throw for the SD-998C-NUQ, 1/2" throw for the
SD-998C-NUAQ). The strikes feature 12/24 VDC operating voltage, selectable
fail-safe/fail-secure operation, horizontal adjustment, and a surface-mount metal housing, eliminating the
need for frame cutting during installation.
Introduction:
1x Strike 2x Crimp connectors
1x Blind nut kit 1x 12VDC cable connector
2x Blind nuts 1x 24VDC cable connector
1x Hex wrench Spacers –
2x Hex socket head cap screws
–
3x 1/32" (0.8mm)
1
2x Philips flat head screws – 1/16",
1
/8", 1/4" (1.5mm, 3mm, and 6mm)
2
1x Manual
Model
SD-998C-NUQ SD-998C-NUAQ
Operating voltage 12/24 VDC
Current draw
540mA@12VDC, 270mA@24VDC
Operating temperature 14°~120° F (-10°~49° C)
Operating humidity 0~85%
Maximum latch throw
3
/4" (19mm)
1
/2" (13mm)
Static strength 1,500 lbs. (680kg)
Dynamic strength 70 lb-ft. 9.68 (kg-m)
Endurance 250,000 cycles (UL Tested)
Dimensions 8"x13/4"x3/4" (203x45x19 mm) 8"x13/4"x1/2" (203x45x13 mm)
Parts List:
Specifications:
Overview:
13/4" (45mm)
67/16"
(163mm)
Note: Not all parts will be used in every installation.
8"
(203mm)
1
/2" (13mm)
SD-998C-NUAQ
3
/4" (19mm)
SD-998C-NUQ
71/2"
(190mm)
1
SD-998C-NUQ only
2
SD-998C-NUAQ only
11/2" (38mm)
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SECO-LARM Surface-Mount Electric Rim Strikes
SECO-LARM U.S.A., Inc. 3
Installation:
1. Set either fail-safe or fail-secure operation. See "Selecting
Fail-Safe/Fail-Secure," below.
2. Measure the center line of the latch, labeled "Y" (see Fig.1).
3. With the door closed, measure and mark the latch line on the
door frame, labeled "X" (see Fig. 2). This will correspond
with the inside of the strike keeper as shown in Fi
g
s. 3 and 4.
4. Using the strike as a template centered on the latch center
line "Y," and so that the inside of the strike keeper is aligned
with the door latch line "X," mark and drill the two outer
mounting holes and the cable access hole.
5. Make the wire connections (see "Wiring Diagram" on pg. 4)
and then mount the strike to the frame with the Philips flathead screws. Check the location and ensure that the door
latches properly and adjust the strike horizontally as needed.
6. Tighten the two mounting screws and mark the locking hole
locations (the two inner holes, see Fig. 5).
7. Remove the strike and drill the two locking holes. Insert the
blind nuts into the locking holes. Reinstall the strike as
before and lock into place with the hex socket head cap
screws into the blind nuts.
Mounting
screw holes
Locking
screw holes
67/16"
(163mm)
71/2"
(190mm)
Fig. 5
Latch
Center line
Y
Fig. 1
Fig. 3
Door closed
Fig. 2
Door
X
Door
frame
Door latch line
Pullman
Latch
Inside of
strike
keeper
Fig. 4
Fail-Secure:
#1
#1
#2
#2
Locking screw #1
Fail-Safe:
Sliding screw #2
#1
#2
#1
#2
Note: SD-998C-NUAQ shown.
1. Remove both locking screws #1.
2. Loosen both sliding screws #2,
slide to the desired fail-safe or
fail-secure setting (factory default),
and retighten.
3. Reinsert and tighten locking
screws #1 to lock the desired
fail-safe or fail-secure setting.
Selecting Fail-Safe/Fail-Secure:
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SECO-LARM Surface-Mount Electric Rim Strikes
4 SECO-LARM U.S.A., Inc.
Wiring Diagram:
Electric strike does not activate
Dismount the strike and check that the wiring connector
is connected properly.
Ensure the wiring connector is connected to a 12 or
24VDC source.
Use a multimeter to test that the strike is receiving the
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 or push-button
switch) is working properly.
Door does not open when the electric strike
is activated
Check that the door latch is operating properly, and
replace if necessary.
The position of the electric strike may need to be
adjusted by moving it or adding washers or shims.
Strike makes a buzzing sound Connect the strike to a DC power supply.
Troubleshooting:
SECO-LARM
®
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
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. All trademarks
are the property of SECO-LARM U.S.A., Inc. or their respective owners. Copyright © 2018 SECO-LARM U.S.A., Inc. All
rights reserved.
WARRANTY:
This SECO-LARM product is warranted against defects in material and workmanship while used in normal
service for five (5) years 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.
®
PITGW1
MI_SD-998C-NUxQ_180420.docx
1. Use the included wiring connector marked 24VDC.
2. Plug the male wiring connector into the female wiring
harness connector of the door strike.
1. Use the included wiring connector marked 12VDC.
2. Plug the male wiring connector into the female wiring
harness connector of the door strike.
For 12VDC o
p
eration:
For 24VDC o
p
eration:
12
V
24
V
12VDC
Black Wire
Red Wire
White Wire
24VDC
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