Seco Larm Usa Electromagnetic Lock E 941Sa 1K2Pq Users Manual

E-941SA-600PQ to the manual c7fc7a84-ea22-4953-961a-2f4fcb8c6089

2015-02-06

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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

Table of Contents:
Introduction
Features
Parts List
Specifications
Overview and Installation Applications

2
2
2
2
3

Installation
Wiring Diagram
Maximum Wiring Distance
Troubleshooting
Warranty

4-6
7
7
8
8

Introduction:
The E-941SA series of electromagnetic locks is the ideal way to secure a door against unauthorized entry.
When power is applied to the electromagnetic lock, it creates an extremely strong magnetic field. The
electromagnet is strongly attracted to the steel armature plate which is mounted on the secured door. Once the
electromagnet is deactivated, the secured door will function normally without any residual magnetism.

Features:
 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-941SA-1K2PQ and E-941SA-600PQ also feature:
 Built-in dual-colored status LED and bond sensor to show
locking status:
Green
Door is closed and locked
Red
Door not closed and/or locked
Door in use / No power
Off
E-941SA-300 features:
 Weatherproof for outdoor use.
 Pre-installed 36” (91cm) hookup wire included.

Parts List:

1 x Mounting plate
1 x Electromagnet
1 x Armature plate
1 x Armature screw
2 x Steel washers
1 x Rubber washer
1 x Door spacer
1 x Sexnut bolt
2 x Guide pins
4 x Long self-tapping screws
2 x Short self-tapping screws
2 x Hex-head mounting screws
2 x Tamper caps
2 x Allen wrenches

*E-941SA-300 does not have this feature.

Specifications:
300-lb
600-lb
1,200-lb
12VDC ±10%
12 or 24 VDC ±10%
12VDC
315mA@
500mA
Current draw
24VDC
N/A
250mA
Coil resistance
48 ±10% per coil (see page 8)
Bond sensor relay
3A@12VDC
63/4” x 1” x 11/4”
97/8” x 11/16” x 15/8” 101/2” x 15/8” x 25/8”
Magnet
(170 x 23 x 32 mm) (250 x 26 x 40 mm) (268 x 42 x 67 mm)
Dimensions
6” x 3/8” x 11/4”
71/4” x 1/2” x 11/2”
71/4” x 5/8” x 23/8”
Armature plate
(152 x 10 x 32 mm) (185 x 12 x 38 mm) (185 x 16 x 61 mm)
Operating temperature
14°~131° F (-10°~55° C)
Weight
600-lb
2-lb 13.5-oz (1.3kg)
4-lb 6-oz (2kg)
11-lb (5kg)
UL Listed
No
Yes
Yes
Operating voltage

2

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

SECO-LARM ELECTROMAGNETIC LOCK

Overview:
Short selftapping screws
Armature screw

Mounting plate

Rubber washer

Long selftapping screws

Guide pins
Electromagnet
Steel washers
Armature plate
Door spacer
Hex-head
mounting screws

Sexnut bolt

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
Installation

Plate
Spacers

“L”-Bracket and
“Z”-Bracket

(Typically for glass doors)

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

“U” Bracket

“L” Bracket

ArmatureMounting Plate

3

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
form a 90-degree angle.

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.
Door Frame

Ideal
Mounting
Location

3. Place the template against
the door and frame. Mark
where the holes are to be
drilled.
Door Frame

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.

Door Frame

Door
Door
Template

4

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:

5/8” (16mm)

Solid Core Door

Reinforced Door

Hollow Metal Door

5/16” (8mm)

1/4” (6.8mm) 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.

Drill a 1/4” (6.8mm)
dia. and 1” (25mm)
deep hole, tap for
M8x1.25 thread.

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.

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.

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.
Armature
screw

The rubber washer will be
sandwiched between the
two metal washers.

Guide pins
Metal
washers

Tip: Use a thread-locking compound

on the armature screw to ensure
a long-lasting installation.

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

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

300-lb mounting plate

Armature Plate

5

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

12. Remove the cover from the front of the

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.

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

15. Connect the power wires according to the wiring

with the terminal block. Set the voltage using the
selection jumpers based on your input voltage.

diagram on page 7. Test the unit. Then replace the
front cover and install the hex-head tamper caps.

Voltage Selection Jumpers

Position two jumpers
on all four pins for
12VDC operation

Position a jumper over
the two middle pins for
24VDC 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:

6

Access Control
Power Supply

Stand-Alone
Access Keypads

Complete line of
Electromagnetic
Locks and Strikes

Voltage
Converters or
Booster

Wired or Wireless
RTE Plates

EAP-5D1Q

SK-1123-SQ

E-941DA-1K2P

ST-LA110-TTQ

SD-7202GC-PEQ

(shown)

(shown)

(shown)

(shown)

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
Door not closed and/or locked
Door in use / No power
Off

600PQ and 1K2P models ONLY
*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.

Control
Device*

Voltage Selection Jumpers

Position two jumpers
on all four pins for
12VDC operation

Power Supply

Position a jumper over
the two middle pins for
24VDC operation

Maximum Distance from Power Source to Electromagnetic Lock:
For a complete chart, please visit www.seco-larm.com
12VDC Minimum Wire Gauge:
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

--

--

24VDC Minimum Wire Gauge:
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

Note: E-941SA-300 is pre-wired.

Optional SECO-LARM Electromagnetic Lock Accessories:

Does not include armature plate

Description

“Z” Brackets
(includes 1 “L” Bracket)

600-lb.
Models

E-941S-600/ZQ

1200-lb.
Models

E-941S-1K2/ZQ

E-941S-1K2/ZRQ
Additional (Right-side “Z” Bracket
Models
for E-941DA-1K2P)

Plate Spacers

Glass Door
“U” Brackets

Armature
Plate Holders

E-941S-600/LQ

E-941S-600/PQ

E-941S-600/UQ

E-941S-600/HQ

E-941S-1K2/LQ

E-941S-1K2/PQ

E-941S-1K2/UQ

E-941S-1K2/HQ

“L” Brackets

E-941D-1K2/P
(for E-941DA-1K2P)

Note: Brackets and spacers are not available for E-941SA-300.

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

7

SECO-LARM ELECTROMAGNETIC LOCK

Troubleshooting:
Door does not lock
Bond status LED does not Illuminate






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.

Delay in door releasing

 The electromagnet is fitted with a metal oxide varistor to prevent
interference, so do not install a second diode.

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.

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 lock. See below.
Make sure the rubber washer is installed and free from damage.

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.
White
48 ±10%
Black
3. Using a meter, measure the resistance across:
Green
Red / Green wires, and the Black / White wires.
48 ±10%
Red
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.

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
Tel: 800-662-0800 / 949-261-2999 Fax: 949-261-7326

8

Website: www.seco-larm.com
E-mail: sales@seco-larm.com

PITGW1
MiE941SA_1009.docx

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



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