Securitron Magnalock Corp.
www.securitron.com
ASSA ABLOY, the global leader
Tel
800.624.5625
techsupport@securitron.com
in door opening solutions
© Copyright, 2011, all rights reserved
PN# 500-18300
Page 1
Rev. D, 08/11
SECURITRON MODEL UNL-12, UNL-24 UNLATCH
®
MOTORIZED
ELECTRONIC STRIKE INSTALLATION AND OPERATING INSTRUCTIONS
1. DESCRIPTION
Securitron’s UnLatch is a revolutionary new type of electric strike which eliminates the
necessity to perform a routing operation on the door frame for installation. The motor
driven UnLatch also presents a fully concealed appearance on the door which not only
enhances the architectural appeal of the installation but improves security over a conventional
electric strike as an intruder is less able to determine the type of security device present on the
door. The UnLatch functions with cylindrical dead latches or spring latches and includes a
latch status output which reports when the door is in latched (secure) condition or is open.
Product Specifications are: Input Voltages: 12 VDC (UNL-12), +20%, -10%. 24 VDC
(UNL-24), +20%, -10%. Current: At rest: 40 mA (either voltage). When operating- 3 Amp
input surge @ 12 VDC; 1.5 Amp input surge @24 VDC for 100 milliseconds and 300 mA @ 12
VDC or 200 mA @ 24 VDC thereafter. Operating Temperature: -10
F to 125
F.
FIG 1: UNLATCH DIMENSIONS (INCHES)
4.87
1.245
3.37
4.12
3.38
1.50
1.33
RECOMMENDED TOOLS
MEDIUM PHILLIPS DRIVER
MEDIUM SLOTTED DRIVER
CHISEL
WIRE CUTTER/STRIPPER
VOLT/OHM METER
CRIMP CONNECTORS
CRIMP PLIERS
2. PHYSICAL INSTALLATION
2.1 SURVEY
The installer must first be sure that the latch is of
the cylindrical type with or without the deadlatch
function. See Figure 2. Most North American latches
are of this type which is also called tubular. Examples
of latch types on which the UnLatch will not
function include many panic bar latches and rim
latches (rim latches are on the surface of the door
rather than being mortised into the middle of the
door). The UnLatch also will not function on mortise
latches. These are heavy duty rectangular units
similar in appearance to the drawing on the right.
After determining that there is a cylindrical latch, the
installer must determine whether there is a wooden,
or hollow metal (steel) door frame and whether the type of strike present on the frame is of the
ANSI 2 3/4” type (found on many residential doors) or the ANSI 4 7/8” strike (commercial).
MORTISE LATCHES
WILL NOT FUNCTION
WITH THE UNLATCH
