ENFORCER SM-4201-LQ, Manual

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Track-Mount Overhead-
Door Magnetic Contacts
SM-4201-LQ, SM-4201-L3Q,
SM-4201-L6Q
Manual
U.S.A., Inc.
16842 Millikan Avenue, Irvine, CA 92606 Website: www.seco-larm.com
Phone: (949) 261-2999 | (800) 662-0800 Email: sales@seco-larm.com
®
PICNN1
MI_SM-4201-LxQ_220112_ML

3″ (76mm) Gap for overhead doors in both industrial and
residential situations

Rugged aluminum housing

36″ (91cm) Wire leads enclosed in armored cable

Contact reed switch is iridium-plated to have a high melting
point and Vickers hardness for higher power handling and
longer expected life

Models available for:
SPST closed loop circuits (SM-4201-LQ),
SPDT open/closed loop circuits (SM-4201-L3Q), or DPDT
open/closed loop circuits (SM-4201-L6Q)

Mounting brackets included

Adjustable for door-channel widths from 2~2
1
/
2
" (51~64 mm)

Lifetime limited warranty
Optional Accessory – SM­8201­LWQ
L-bracket for door channels up to 4" (102mm)
Parts List
1x Contact switch 1x Magnet with bracket
1x Contact bracket 1x Manual
NOTICE: The SECO-LARM policy is one of continual development and improvement. For that reason, SECO-LARM reserves the right to change specifications without notice. SECO-LARM is also not
responsible for misprints. All trademarks are the property of SECO-LARM U.S.A., Inc. or their respective owners. Copyright © 2022 SECO-LARM U.S.A., Inc. All rights reserved.
Specifications Overview
Model SM­4201­LQ SM­4201­L3Q SM­4201­L6Q
Loop type Closed Open/Closed Open/Closed
Electrical
configuration N.O.
(SPST)
NO/NC
(SPDT)
NO/NC
(DPDT)
Operation gap 3" (76mm)
Connectors 36" (91cm) Armored leads
Material
Switch Aluminum
Contacts Iridium-plated
Contact rating
1.0A@10VDC (max.)
10W (max.)
Operating temperature -15°~160° F (-25°~70° C)
Switch cycles 50 Million (0.1mA@5VDC)
Dimensions
Switch 3
1
/
8
″x2
5
/
8
″x1
13
/
16
″ (79x66x46 mm)
Magnet 3
1
/
4
″x3
9
/
16
″x1
3
/
4
″ (82x90x44 mm)
Magnet type Ferrite
Installation
Please read the manual carefully before you begin the installation.
1. Mount the contact on the track in a safe location away from equipment interference and near where the magnet will be
when the door is closed.
2. Run the armored cable out of the way. Run wires from the alarm control panel and connect to the corresponding wires
extending from the cable armor.
3.
Mount the magnet on the roll up door so that it will trigger the contact when the door is closed. Be sure that the gap
between the contact and magnet does not exceed 3" (60mm).
LIMITED LIFETIME 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.
California Proposition 65 Warning: These products may contain chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more
information, go to www.P65Warnings.ca.gov .

Contact and magnet must be installed
on the protected side of the door.

Installation shown is for the
SM-4201-LQ. Other models will be
different.
GND
N.O.
Alarm Control
Panel
SM-4201-LQ shown