
ENFORCER
Note: Products with model numbers that end with “Q” or that have a round green “Q” sticker are RoHS compliant.
®
600-lb Electromagnetic Lock
Troubleshooting:
Door does not
lock
Status LED is
not illuminated
Door locks, but
can be easily
forced open
Delay in door
releasing
No relay output
Delay in door
relocking
No power
No power
Poor contact
between
electromagnet and
armature plate
Incorrect voltage
setting
A secondary diode
was installed across
the electromagnet
No power
Misalignment
Check timer
Check to make sure the wires are securely
tightened to the terminal block.
• Check that the power supply is connected and
operating.
• Make sure the lock switch is wired correctly.
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.
The electromagnet is fitted with a metal oxide
varistor to prevent interference, so do not install
a secondary diode.
• Check that the power is connected and
operating.
• Make sure the lock is aligned properly.
• Make sure the NO/NC/COM are wired properly.
Make sure timer is adjusted to desired delay
time.
Maintenance:
• Clean the contact surfaces of the electromagnet or armature plate with a soft cloth and non-
abrasive, non-corrosive cleaner.
• Apply a light coat of a silicon lubricant to prevent rust. Wipe away the excess.
• Check that the armature plate is securely attached to the door, yet can pivot slightly around the
armature screw.
• Check that the electromagnet is securely attached to the door frame.
WARRANTY ENFORCER Electromagnetic Locks are warranted against defects in material and
workmanship while used in normal service for a period of one (1) year from the date of sale to the
original customer. Our obligation is limited to the repair or replacement of any defective part if the unit
is returned, transportation pre-paid, to SECO-LARM.
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
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
4 SECO-LARM
®
U.S.A., Inc.
.com
®
U.S.A., Inc
600-lb Electromagnetic Lock Series
Manual
How it works
When power is applied to the magnetic lock, it turns on the unit's powerful built-in
electromagnet. This electromagnet is attracted to the steel armature plate which is mounted on
a door, holding the door fast against unauthorized entry. When power to the magnetic lock is
turned off, the electromagnet releases the armature plate, allowing the door to open. In
addition, the E-941SA-600PQ & E-941DA-600PQ have built-in LEDs to show electromagnet
status, plus a status sensor to monitor whether the door is securely closed.

Note: may require more than
®
600-lb Electromagnetic Lock
Specifications:
Magnet Size
Armature Size
Status LED (2-color)
(250x25.5x43 mm)
(185x12x38 mm)
Red (unlocked)
(500x25.5x43 mm)
(185x12x38 mm) x 2
n/a
Red (unlocked)1
ENFORCER
®
600-lb Electromagnetic Lock
F. Connect the power leads (fig. 3)
1. Open the electromagnet and run two power leads from the power supply through the cable
access hole into the electromagnet.
2. Connect the power leads to the terminal block and close the electromagnet.
3. Test the unit.
G. Insert the tamper caps into the mounting screw access holes.
NOTE: This should be the last step, as once the tamper caps are in place, they are difficult to remove.
1
1
Diagrams:
Figure 1
1
On each side, for double door models
1
1
Installation:
A. Drill holes for the mounting plate and armature plate (see fig. 1 and 2) by doing the following:
1. Fold the mounting template along the dotted line.
2. Close the door. Find a mounting location on the door frame near the upper free-moving corner of
the door, as close to the corner of the door frame as possible.
3. Place the template against the door and frame.
4. Drill two holes in the door frame and three holes in the door as indicated on the template.
NOTE: A filler plate or an L-bracket or Z-bracket (optional) may be required for the electromagnet, depending on the door
frame. See fig. 1.
B. Mount the armature plate on the door using at least two steel washers and one rubber washer (fig. 2):
NOTE: Actual installation varies according to door style.
1. Put one rubber washer between two steel washers, and place them over the armature screw
between the armature plate and the door. This will allow the armature plate to pivot slightly
around the armature screw in order to compensate for door misalignment.
2. Tighten the sexnut bolt enough so the armature plate can withstand the force of someone
attempting to break down the door while the electromagnet is engaged.
3. Do not tighten the armature plate against the door. The plate must be able to pivot around the
armature screw.
4. Make sure the anti-spin guides are in the two guidepin holes.
C. Screw the mounting plate onto the door frame or optional bracket:
1. Screw the two short self-tapping screws in the slotted holes of the mounting plate and adjust the
position of the mounting plate so that it and the armature plate are at a 90-degree angle.
2. Once the position is correct, use the long self-tapping screws to permanently mount the bracket.
3. Remove the two short screws.
D. Drill the cable access hole.
E. Mount the electromagnet on the door frame (fig. 1):
1. Use the Allen wrench to screw the socket-head mounting screws through the bottom of the
electromagnet into the mounting bracket.
2 SECO-LARM
®
U.S.A., Inc
*
one filler plate.
Figure 2
Voltage Selection
Status Sensor Output:
Connect to an alarm panel or
Relay
Magnet set for 12VDC
operation as supplied
from factory.
other monitoring device
*Status LED:
Indicates whether
the magnetic lock
is locked or
unlocked.
Green — Locked
Red — Unlocked
Off — No power
Status LED*
Status Sensor Output
SPDT rated 1A@12VDC
SECO-LARM
®
U.S.A., Inc 3
12VDC
Position a jumper over
the two middle pins for
24VDC operation.
Selection
Control
Device
24VDC
Monitors whether the protected door
is open or closed.
N.C. — Door is open, red LED on.
N.O. — Door closed, green LED on.
Relay — 1A@12VDC.
*E-941SA/DA-600PQ models only
E-941SA-600PQ
Power
Supply