SECO LARM USA Door E 941SA 1K2PQ User Guide

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  
SECO-LARM U.S.A., Inc.  
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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  
MiE941SA_1009.docx  
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SECO-LARM U.S.A., Inc.  
 

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