SECO-LARM Magnetic Door Holders
2
SECO-LARM U.S.A., Inc.
Introduction:
The SECO-LARM Magnetic Door Holders are designed for virtually any remote door release
applications. The UL Listed SECO-LARM Magnetic Door Holders, used in conjunction with
UL Listed SECO-LARM door closers, control the release and closing of residential, commercial,
and public area doors including apartments, schools, hotels, hospitals, and offices. Fail-safe
operation, tri-volt coils, and adjustable armature plate allows for easy and flexible installation.
SECO-LARM Magnetic Door Holders also come in surface-mount or flush-mount models with full
mounting hardware included.
Model DH-151SQ
DH-171SQ
Installation Surface-mount
Flush-mount
Current draw
52mA@12VAC, 60mA@12VDC
27mA@24VAC, 31m@24VDC
24mA@120VAC
Holding force
33-lb (15kg)
Magnet box dimensions
2
3
/
4
"4
9
/
16
"x3"
(70x116.5x76 mm)
2
3
/
4
"x4
9
/
16
"x2
1
/
16
"
(70x116.5x52 mm)
Door armature dimensions
2
9
/
16
"x2
9
/
16
"x 1
9
/
16
" (65x65x40 mm)
Magnet box weight
1-lb 6.4-oz (920g)
1-lb 1.5-oz (468g)
Door armature weight
8.1-oz (230g)
Operating voltage
12 VAC/VDC, 24 VAC/VDC, 120VAC
Specifications:
Parts List:
1x Door holder
1x Armature plate
1x Manual
2x Jumpers
2x 5*15 Machine screws
2x #10*1
1
/
4
" Wood screws
4x 4*8 Machine screws
2x 3*10 Machine screws
1x Back box*
1x 1" Extension bar
1x Extension bar wrench
Wiring Diagram:
For 12VAC/VDC
For 24VAC/VDC
For 120VAC
Voltage
Selector
Jumper
(
‐
)
(
+
)
(
‐
)
(
+
)
(
‐
)
(
+
)
COM
12V
24V
120V
COM
12V
24V
120V
COM
12V
24V
120V
Available Accessories: Extension Bars
DH-100E-05SQ
1
/
2
" (13mm)
DH-100E-20SQ 2" (50mm)
DH-100E-50SQ
5" (127mm)
DH-100E-07SQ
3
/
4
" (19mm)
DH-100E-30SQ 3" (76mm)
DH-100E-60SQ
6" (152mm)
DH-100E-10SQ 1" (25mm)
DH-100E-40SQ 4" (102mm)
DH-100E-70SQ
7" (178mm)
* DH-151SQ only
