opened. If power fails the strike will remain locked.
cam into the unlocked position allowing the door to be
E) Reinstall strike in frame.
D) Reposition strike and re-tighten cap screws.
Cap screws.
C) Loosen the two (2) 12-24 x 3/8 Hex Washer Head
B) Remove strike from frame.
When control power source is AC, the strike is supplied
with an externally attached bridge rectifier.
When power is applied the solenoid pulls the locking
1. NON-FAIL-SAFE
The 110-4 electric strike is a solenoid operated device.
INSTALLATION
1. For proper installation of the 110 strike refer to the
appropriate template drawing. The centerline of the
latch bolt must be aligned with the centerline of the
strike.
2. Prior to installation make the necessary wire
connections per the appropriate wiring diagram.
3. Proper operating voltage must be supplied to the
strike if it is to function correctly. Voltage at the
strike must be within ± 10% of the required voltage
listed on the strike label.
4. To install the strike into the frame opening:
A) Position the wiring either down or up or toward the
back of the hollow metal frame, making sure that it
stays completely out of the way of the strike so as
not to pinch it when installing.
B) Mount the strike using the screws supplied:
STRIKE MODEL MOUNTING SCREWS
110-4, 4-1, 4-2,
4-3, 4-30, 40BR (2) 1/4-20 x 1 FILHMS
110-4-100 (4) 1/4-20 x 5/8 BHCS
110-4W (4) 14 x 2 RHPWS
5. After installation check the horizontal alignment, be
certain that the centerline of the latch bolt is aligned
with the centerline of the strike.
6. In case of misalignment there is a 3/16" horizontal
adjustment between the strike mechanism and the
face plate. To adjust:
A) Remove mounting screws.
OPERATION
F) Reinstall mounting screws.
NOTE: Non-fail-safe strikes for use in fire rated doors
can only be operated by momentary contact
switching (energized only when the push button
is held depressed) and cannot be held in the
unlocked position.
2. FAIL-SAFE
When power is applied the solenoid pushes the
locking cam into the locked position and the door
cannot be opened. If power fails the strike will unlock.
OPERATIONAL NOTE
This product may be provided fail safe or fail secure. Fail safe
versions allow exit in the event of power failure. Fail secure versions
do not. Consult with the local authority having jurisdiction concerning
the installation of this type of product and whether listed panic
hardware is required to allow emergency exit from the secured area.
OPTIONAL FEATURES
1. LBM SWITCH (Latch Bolt Monitor)
A switch operated by the switch tripper that signals
whether or not the latch bolt is extended into the
strike.
2. LCM SWITCH (Locking Cam Monitor)
A switch operated by the LCM switch tripper that
monitors the position of the locking cam and signals
that the strike is either locked or unlocked.
3. LCBM SWITCH
(Locking Cam and Latch Bolt Monitor)
A switch operated by the LCM switch tripper and the
LBM switch tripper that signals that the strike is
locked and the latch bolt is engaged.
4. LCBMA SWITCH
(Locking Cam and Latch Bolt Monitor,
wired separately)
This is the same as the LCBM, with an additional
switch operated by the LBM switch tripper.
5. SOLENOID VOLTAGE
24VAC is standard. Optional voltages available are:
12 or 115 VAC, 6, 12, 24, 48 or 115 VDC.
NOTE: UL requires that a junction box be used with 48
and 120 volt strikes, if they are not installed in
a back box.
6. SILENT OPERATION (SO)
Silent operation is recommended for AC non-fail-safe
strikes that are to be energized for extended periods
of time.
All silent operation strikes are operated by DC solenoid.
ES 110-4 ELECTRIC STRIKE
RIM TYPE EXIT DEVICES
PAGE
1 of 7
INS NO.
Rev.
08101631
05/09
www.dorma-usa.com 1-800-523-8483
