Electromagnetic Lock
E-941SA-600 600-lb. (272kg)
E-941SA-1200 1200-lb. (545kg)
With LED, Bond Sensor
E-941SA-600PQ 600-lb. (272kg)
E-941SA-1K2PQ 1200-lb. (545kg)
Weatherproof
E-941SA-300 300-lb. (136kg)*
Manual
*E-941SA-300 is not UL listed.
NOTE: Products with a model number that ends with “Q” or have a round green “Q” sticker represent RoHS compliant products.
SECO-LARM ELECTROMAGNETIC LOCK
Overview:
Short self-
tapping screws
Armature screw
Rubber washer
Guide pins
Mounting plate
Long self-
tapping screws
Electromagnet
Armature plate
Steel washers
Door spacer
Sexnut bolt
Hex-head
mounting screws
Tamper caps
Installation Applications:
NOTE: When mounting the electromagnet, it may be necessary to use a “Z”-bracket, 1 or 2 “L”-brackets,
and/or plate spacers, depending on the location and the type of door and frame. Use the diagram below to
help decide whether or not an optional bracket will be necessary for installation.
See page 7 for a complete list of SECO-LARM accessories.
.
Typical
Plate
“L” Bracket
Installation
Spacers
“L”-Bracket and
Armature-
Mounting Plate
“U” Bracket
“Z”-Bracket
(Typically for glass doors)
SECO-LARM U.S.A., Inc.
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SECO-LARM ELECTROMAGNETIC LOCK
Installation Notes:
1. Read this installation manual thoroughly. A clear understanding of the product and this
manual will make installation much easier.
2. The electromagnetic lock is designed for indoor use ONLY.
3. The most suitable mounting location for the electromagnetic lock may require the use of
additional SECO-LARM accessories such as Z-brackets, L-brackets, and/or spacer plates.
Please see the diagram on page 3 to decide if a particular application requires any mounting
accessories. See page 7 for a complete list of SECO-LARM accessories.
4. Do not run power wires and signal wires in the same conduit as this may cause interference.
5. Do not install a diode in parallel with the electromagnetic lock as this may cause a delay
when releasing the door as well as cause residual magnetism.
6. The best location to install the electromagnetic lock is on the inside of the door that is being
secured with the wiring concealed in the frame to prevent tampering with the unit.
Installation:
1. Fold the mounting template along the dotted line to
2. Close the door. Find a mounting location on the door
frame near the upper free-moving corner of the door,
or as close as possible to the upper corner of the
door frame opposite the hinges.
form a 90-degree angle.
Door Frame
Ideal
Mounting
Location
4. Drill two holes in the frame and
three holes in the door as shown
on the template.
5. Use a hammer to lightly tap the
guide pins into the guide pin
holes on the armature plate.
3. Place the template against
the door and frame. Mark
where the holes are to be
drilled.
Door Frame
Door Frame
Door
Door
Template
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SECO-LARM U.S.A., Inc.
SECO-LARM ELECTROMAGNETIC LOCK
6. Depending on the type of door being protected, drill holes according to the diagrams below:
Solid Core Door
Reinforced Door
Hollow Metal Door
5/8” (16mm)
5/16” (8mm)
1/4” (6.8mm) for M8x1.25 thread
1/2” (12 .7mm)
5/16” (8mm)
Drill an 5/16” (8mm) dia. hole on the
door for the armature screw, and drill a
1/2” (12.7mm) dia. and 1” (25mm) deep
hole for the sexnut screw.
Drill a 1/4” (6.8mm)
dia. and 1” (25mm)
deep hole, tap for
M8x1.25 thread.
Drill a 5/16” (8mm) dia. hole through the
armature-plate side of the door for the
armature screw. Then drill a 5/8” (16mm)
dia. hole for sexnut screw on the
opposite side of the door.
8. Tighten the armature screw enough so that the
armature plate can withstand a break-in attempt, but
loose enough so that the armature plate can pivot
slightly. Make sure the anti-spin guide pins are in the
two guide pin holes.
7. Put a rubber washer between the two metal washers,
and place them over the armature screw between
the armature plate and the door. This allows the
plate to pivot around the screw to compensate for
door misalignment.
Armature
screw
The rubber washer will be
sandwiched between the
two metal washers.
Guide pins
Tip: Use a thread-locking compound
on the armature screw to ensure
a long-lasting installation.
Metal
washers
9. Screw the two short self-tapping screws through the mounting plate’s slotted holes, but do not over-tighten them.
Keeping them loose will allow for adjustment of the plate left or right so that the mounting plate and the armature
plate form a 90-degree angle. See the diagram below.
90
Mounting Plate
300-lb and 600-lb
mounting plate
300-lb mounting plate
Armature Plate
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SECO-LARM ELECTROMAGNETIC LOCK
10. Once the position of the mounting plate is correct,
use the four long self-tapping screws to permanently
mount the mounting plate.
11. Drill the cable access hole. Run the power leads
through the cable access hole in the mounting plate
and through the hole in the door frame.
Long self-tapping screws
13. Push the electromagnet against the mounting plate
so the electromagnet ends are flush with the ends of
the mounting plate. Use the Allen wrench to screw
the hex-head mounting screws through the bottom
of the electromagnet into the mounting bracket.
12. Remove the cover from the front of the
electromagnet. Run the power leads through the
large cable access hole .
Skip this step for E-941SA-300. Power leads are
pre-installed. Faceplate does not detach.
14. Cut the wires so they are long enough to connect
with the terminal block. Set the voltage using the
selection jumpers based on your input voltage.
15. Connect the power wires according to the wiring
diagram on page 7. Test the unit. Then replace the
front cover and install the hex-head tamper caps.
Voltage Selection Jumpers
Position a jumper over
the two middle pins for
24VDC operation
Position two jumpers
on all four pins for
12VDC operation
NOTE: Failure to correctly set the input voltage may cause
damage to the lock.
NOTE: Connect switching devices like push-to-exit
switches between the power source and the positive
terminal on the lock. Connecting switching devices to the
negative terminal may cause a delay in unlocking.
NOTE: This should be the very last step, as once the
tamper caps are in place they are very difficult to remove.
Also Available from SECO-LARM:
Complete line of
Electromagnetic
Locks and Strikes
Voltage
Converters or
Booster
Access Control
Power Supply
Stand-Alone
Access Keypads
Wired or Wireless
RTE Plates
ST-LA110-TTQ SD-7202GC-PEQ
SK-1123-SQ
E-941DA-1K2P
EAP-5D1Q
(shown)
(shown)
(shown)
(shown)
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SECO-LARM U.S.A., Inc.
SECO-LARM ELECTROMAGNETIC LOCK
Wiring Diagram:
Bond Status Sensor:
The Bond Status Sensor checks
to make sure the door is closed,
and the electromagnet is locked.
(600PQ and 1K2P
models ONLY)
LED Indicators:
Green Door is closed and locked
Red
Off
Door not closed and/or locked
Door in use / No power
600PQ and 1K2P models ONLY
Control
Device*
*NOTE: Connect switching devices like
push-to-exit switches between the
power source and the positive terminal
on the lock. Connecting switching
devices to the negative terminal may
cause a delay in unlocking.
Voltage Selection Jumpers
Power Supply
Position two jumpers
on all four pins for
12VDC operation
Position a jumper over
the two middle pins for
24VDC operation
Maximum Distance from Power Source to Electromagnetic Lock:
12VDC Minimum Wire Gauge:
Wire Length
Wire Gauge @ 500mA 20 18 18 18
24VDC Minimum Wire Gauge:
Wire Length
Wire Gauge @ 250mA 24 24 22 20
Note: E-941SA-300 is pre-wired.
25ft. 50ft. 75ft. 100ft. 150ft. 200ft. 250ft. 300ft. 400ft. 500ft. 1000ft.
16 14 14 12 10 -- --
25ft. 50ft. 75ft. 100ft. 150ft. 200ft. 250ft. 300ft. 400ft. 500ft. 1000ft.
18
18
16
16
14
14
14
Optional SECO-LARM Electromagnetic Lock Accessories:
Does not include armature plate
Armature
Plate Holders
Glass Door
“U” Brackets
“Z” Brackets
(includes 1 “L” Bracket)
“L” Brackets
Plate Spacers
Description
600-lb.
Models
E-941S-600/HQ
E-941S-600/ZQ
E-941S-1K2/ZQ
E-941S-600/PQ
E-941S-600/UQ
E-941S-1K2/UQ
E-941S-600/LQ
1200-lb.
Models
E-941S-1K2/PQ
E-941S-1K2/LQ
E-941S-1K2/HQ
E-941S-1K2/ZRQ
(Right-side “Z” Bracket
for E-941DA-1K2P)
E-941D-1K2/P
(for E-941DA-1K2P)
Additional
Models
Note: Brackets and spacers are not available for E-941SA-300.
SECO-LARM U.S.A., Inc.
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SECO-LARM ELECTROMAGNETIC LOCK
Troubleshooting:
Door does not lock
Check to make sure the wires are securely tightened to the terminal block.
Bond status LED does not Illuminate
Check that the power supply is connected and operating.
Use a meter to check the resistance of coils inside the lock. See below.
Make sure the rubber washer is installed and free from damage.
Door locks, but can easily be forced open
Make sure the electromagnet and armature plate are properly aligned.
Make sure the contact surfaces of the electromagnet and armature
plate are clean and free from rust.
Check the power leads with a meter, and make sure 12VDC or 24VDC is
present.
Use a meter to check the resistance of coils inside the lock. See below.
Make sure the rubber washer is installed and free from damage.
The electromagnet is fitted with a metal oxide varistor to prevent
interference, so do not install a second diode.
Delay in door releasing
No relay output
Check that the power is connected properly and turned on.
Make sure the lock is aligned properly.
Make sure the NO/NC/COM are wired properly.
If the Electromagnet has low or no holding force, check the resistance of the coils by
performing the following steps:
1. Remove the faceplate from the lock.
Wire Harness:
2. Disconnect the wire harness from the circuit board.
3. Using a meter, measure the resistance across:
Red / Green wires, and the Black / White wires.
4. Each coil should test at 48 ±10%.
White
48 ±10%
48 ±10%
Black
Green
Red
5. If one or both of coils shows an open, short, or incorrect
resistance, replace the electromagnet.
LIFETIME LIMITED WARRANTY This SECO-LARM product is warranted against defects in material and workmanship
while used in normal service for the lifetime of the product. 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. Under no circumstances will SECO-
LARM be responsible for any costs or charges for removal, installation, or reinstallation. 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 repair or replacement only, at SECO-LARM’s option. In no
event shall SECO-LARM be liable for any special, collateral, incidental, or consequential personal or property damages of
any kind to the purchaser or anyone else. This lifetime limited warranty is for products sold and installed in the United States
and Canada. For all other countries the warranty is 1 (one) year.
NOTICE: The information and specifications printed in this manual are current at the time of publication. However, the
SECO-LARM policy is one of continual development and improvement. For this reason, SECO-LARM reserves the right
to change specifications without notice. SECO-LARM is also not responsible for misprints or typographical errors.
Copyright © 2010 SECO-LARM U.S.A., Inc. All rights reserved. This material may not be reproduced or copied, in
whole or in part, without the written permission of SECO-LARM.
SECO-LARM U.S.A., Inc.
16842 Millikan Avenue, Irvine, CA 92606
Tel: 800-662-0800 / 949-261-2999 Fax: 949-261-7326
PITGW1
E-mail: sales@seco-larm.com
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SECO-LARM U.S.A., Inc.
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