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NOTE: Products with model numbers ending in "Q" or labeled with a round green "Q" sticker are certified RoHS compliant.
Double-Door Electromagnetic Lock
E-941DA-600Q 600-lb. (272kg)
E-941DA-1K2Q 1200-lb. (545kg)
With LED, Bond Sensor
E-941DA-600PQ 600-lb. (272kg)
E-941DA-1K2P 1200-lb. (545kg)
MANUAL
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SECO-LARM ELECTROMAGNETIC LOCK
Table of Contents:
Introduction:
Features:
The E-941DA series of electromagnetic locks is the ideal way to secure double doors against
unauthorized entry. When power is applied to the electromagnetic locks, it creates an extremely
strong magnetic field. The electromagnets are strongly attracted to the steel armature plates which
are mounted on the protected doors. Once the electromagnets are deactivated, the secured doors
will open and close normally without any residual magnetism.
Anodized aluminum.
No residual magnetism.
MOV surge protection.
Adjustable mounting bracket.
Complete mounting hardware for typical installations.
“L” bracket and “Z” brackets available for easy
mounting.
12/24VDC selectable.
Detachable faceplate.
E-941DA-1K2P and E-941DA-600PQ also feature:
2 Built-in dual-colored status LED and bond sensors to
show locking status of each door:
Parts List:
1 x Mounting plate
1 x Electromagnet
2 x Armature plate
2 x Armature screw
4 x Steel washers
2 x Rubber washer
2 x Door spacer
2 x Sexnut bolt
4 x Guide pins
8 x Long self-tapping screws
4 x Short self-tapping screws
4 x Hex-head mounting screws
4 x Tamper caps
1 x Allen wrench
Installation Notes
Installation
Wiring Diagram
Maximum Wiring Distance
Troubleshooting
Warranty
Introduction
Features
Parts List
Specifications
Overview
Installation Applications
2
2
2
2
3
3
4
4-6
7
7
8
8
Specifications:
Green
Door is closed and locked
Red
Door not closed and/or locked
Off
Door in use / No power
Operating voltage
12 or 24 VDC ±10%
Current draw
12VDC
500mA@12VDC per door (1A total)
24VDC
250mA@24VDC per door (500mA total)
Coil resistance
48 ±10% per coil (see page 8)
Bond sensor relay
3A@12VDC
Dimensions
Magnet
600-lb
1911/16” x 11/16” x 15/8” (500 x 26 x 40 mm)
1,200-lb.
21” x 15/8” x 25/8” (536 x 42 x 67 mm)
Armature
plate
600-lb
71/4” x 1/2” x 11/2” (185 x 12 x 38 mm)
1,200-lb.
71/4” x 5/8” x 23/8” (185 x 16 x 61 mm)
Operating temperature
14°~131° F (-10°~55° C)
Weight
600-lb
9lbs. (4kg)
1,200-lb.
21lbs. (10kg)
2 SECO-LARM U.S.A., Inc.
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“L”-Bracket and
“Z”-Bracket
Short selftapping screws
Electromagnet
Mounting plate
Sexnut bolt
Door spacer
Armature screw
Tamper caps
Overview:
Installation Applications:
Long selftapping screws
Armature plate
Guide pins
Rubber washer
Steel washers
Hex-head
mounting screws
NOTE: When mounting the electromagnets, 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 doors 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.
.
“L” Bracket
Typical
Installation
“U” Bracket
(Typically for glass doors)
Plate
Spacers
Armature-
Mounting Plate
SECO-LARM ELECTROMAGNETIC LOCK
SECO-LARM U.S.A., Inc. 3
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SECO-LARM ELECTROMAGNETIC LOCK
3. Place the template
against the door and
frame. Mark where the
holes are to be drilled.
4. Drill four holes in the frame and six holes in the
door as shown on the template.
2. Close the doors. Find a mounting location on the
center of the door frame, directly above where both
doors meet when closed.
1. Read this installation manual thoroughly. A clear understanding of the product and this
manual will make installation much easier.
2. The electromagnetic locks are designed for indoor use ONLY.
3. The most suitable mounting location for the electromagnetic locks 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 locks as this may cause a delay
when releasing the door as well as cause residual magnetism.
6. The best location to install the electromagnetic locks is on the inside of the doors that are
being secured with the wiring concealed in the frame to prevent tampering with the unit.
1. Fold the mounting template along the dotted line to
form a 90-degree angle.
5. Use a hammer to lightly
tap the guide pins into
the guide pin holes on
the armature plates
6. .
Installation:
Installation Notes:
Door Frame
Ideal
Mounting
Location
Ideal
Mounting
Location
Door Frame
Door
Template
Door
Door Frame
Door
4 SECO-LARM U.S.A., Inc.
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SECO-LARM ELECTROMAGNETIC LOCK
7. Put a rubber washer between the two metal washers,
and place them over the armature screw between
the armature plates and the doors. This allows the
plates to pivot around the screw to compensate for
door misalignment.
9. Screw the four 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
plates form a 90-degree angle. See the diagram below.
8. Tighten the armature screws enough so that the
armature plates can withstand a break-in attempt,
but loose enough so that the armature plates can
pivot slightly. Make sure the anti-spin guide pins are
in the two guide pin holes.
Mounting Plate
Armature Plate
90
The rubber washer will be
sandwiched between the
two metal washers.
Armature
screw
Short self-tapping screws
Guide pins
6. Depending on the type of door being protected, drill holes according to the diagrams below:
Hollow Metal Door
Solid Core Door
Reinforced Door
1/4” (6.8mm) for M8x1.25 thread
Drill two 5/16” (8mm) dia. holes through
the armature-plate side of the doors for
the armature screws. Then drill two 5/8”
(16mm) dia. holes for sexnut screws on
the opposite side of the doors.
Drill two 5/16” (8mm) dia. holes on the
doors for the armature screws, and drill
two 1/2” (12.7mm) dia. and 1” (25mm)
deep hole for the sexnut screws.
Drill two 1/4” (6.8mm)
dia. and 1” (25mm) deep
hole, tap for M8x1.25
thread on each door.
Tip: Use a thread-locking compound
on the armature screws to ensure
a long-lasting installation.
Metal
washers
5/8” (16mm)
5/16” (8mm)
1/2” (12 .7mm)
5/16” (8mm)
SECO-LARM U.S.A., Inc. 5
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SECO-LARM ELECTROMAGNETIC LOCK
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.
10. Once the position of the mounting plate is
correct, use the eight long self-tapping
screws to permanently mount the mounting
plate.
11. Drill the cable access holes. Run the power leads through
the cable access holes in the mounting plate and through
the holes in the door frame.
12. Remove the cover from the front of the
electromagnets. Run the power leads
through the large cable access holes.
13. Push the electromagnet against the mounting plate so the
ends are flush with the each other. Use the Allen wrench to
screw the hex-head mounting screws through the bottom of
the electromagnets into the mounting plate.
EAP-5D1Q
Also Available from SECO-LARM:
SK-1123-SQ
SD-7202GC-PEQ
Long self-tapping
screws
Access Control
Power Supply
Stand-Alone
Access Keypads
Wired or Wireless
RTE Plates
(shown)
Voltage
Converters or
Booster
ST-LA110-TTQ
(shown)
NOTE: This should be the very last step, as once the
tamper caps are in place they are very difficult to remove.
NOTE: Failure to correctly set the input
voltage may cause damage to the lock.
Complete line of
Electromagnetic
Locks and Strikes
E-941SA-1200
(shown)
(shown)
Position a jumper over
the two middle pins for
24VDC operation
Position two jumpers
on all four pins for
12VDC operation
Voltage Selection Jumpers
CAUTION: The two electromagnets each
have their own voltage selection jumpers.
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.
6 SECO-LARM U.S.A., Inc.
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SECO-LARM ELECTROMAGNETIC LOCK
Wire Length
25ft.
50ft.
75ft.
100ft.
150ft.
200ft.
250ft.
300ft.
400ft.
500ft.
1000ft.
Wire Gauge @ 500mA
20
18
18
18
16
14
14
12
10
--
--
Wire Length
25ft.
50ft.
75ft.
100ft.
150ft.
200ft.
250ft.
300ft.
400ft.
500ft.
1000ft.
Wire Gauge @ 250mA
24
24
22
20
18
18
16
16
14
14
14
24VDC Minimum Wire Gauge:
Wiring Diagram:
Maximum Distance from Power Source to Electromagnetic Lock:
12VDC Minimum Wire Gauge:
Control
Device*
N.C.
COM
N.O.
Relay
1A@24VDC
LED
SECO-LARM
For a complete chart, please visit www.seco-larm.com
Optional SECO-LARM Electromagnetic Lock Accessories:
600-lb.
Models
1200-lb.
Models
E-941S-600/ZQ
E-941S-1K2/ZQ
E-941S-600/LQ
E-941S-1K2/LQ
E-941S-600/PQ
E-941S-1K2/PQ
E-941S-1K2/UQ
E-941S-600/UQ
“L” Brackets
Plate Spacers
“Z” Brackets
(includes 1 “L” Bracket)
Glass Door
“U” Brackets
E-941S-1K2/ZRQ
(Right-side “Z” Bracket
for E-941DA-1K2P)
E-941D-1K2/P
(for E-941DA-1K2P)
Additional
Models
E-941S-1K2/HQ
E-941S-600/HQ
Armature
Plate Holders
Description
*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.
Power Supply
Does not include armature plate
CAUTION: Each lock has its own circuit board, for a total of two circuit boards. Please wire each circuit
board and program the voltage-jumper selections according to the diagram below.
Position a jumper over
the two middle pins for
24VDC operation
Position two jumpers
on all four pins for
12VDC operation
Voltage Selection Jumpers
The Bond Status Sensor checks
to make sure the door is closed,
and the electromagnet is locked.
Bond Status Sensor:
Green
Door is closed and locked
Red
Door not closed and/or locked
Off
Door in use / No power
600PQ and 1K2P models ONLY
LED Indicators:
SECO-LARM U.S.A., Inc. 7
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SECO-LARM ELECTROMAGNETIC LOCK
No relay output
Troubleshooting:
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 SECOLARM 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 SECOLARM, 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 Website: www.seco-larm.com
Tel: 800-662-0800 / 949-261-2999 Fax: 949-261-7326 E-mail: sales@seco-larm.com
MiE941DA_1007.docx
Doors do not lock
Bond status LEDs do not Illuminate
Check to make sure the wires are securely tightened to the terminal block.
Check that the power supply is connected and operating.
Use a meter to check the resistance of coils inside the locks. See below.
Make sure the rubber washer is installed and free from damage.
Doors lock, but can easily be forced open
Make sure the electromagnet and armature plates are properly aligned.
Make sure the contact surfaces of the electromagnet and armature
plates 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 locks. 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
Check that the power is connected properly and turned on.
Make sure the locks are aligned properly.
Make sure the NO/NC/COM are wired properly.
PITGW1
1. Remove the faceplate from the lock.
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%.
5. If one or both of coils shows an open, short, or incorrect
resistance, replace the electromagnet.
White
Black
Green
Red
Wire Harness:
48 ±10%
48 ±10%
If the Electromagnet has low or no holding force, check the resistance of the coils by
performing the following steps:
8 SECO-LARM U.S.A., Inc.
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