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Securitron
®
UNL UnLatch
®
Motorized Electric Strike
Installation & Operating Instructions
Recommended Tools
• Medium Phillips Driver
• Medium Slotted Driver
• Chisel
• Wire Cutter/Stripper
• Volt/Ohm Meter
• Crimp Connectors
• Crimp Pliers
Description
The Securitron UnLatch eliminates the necessity to perform a routing operation
on the door frame for installation. The motor driven Securitron 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 Securitron UnLatch functions with
cylindrical dead latches or springlatches and includes a latch status output
which reports when the door is in latched (secure) condition or is open.
Survey
The installer must first be sure that the latch
is of the cylindrical type with or without
the deadlatch function (see Diagram 3).
Most North American latches are of this type which is also called tubular.
Examples of latch types on which the Securitron 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 Securitron UnLatch also will not function on mortise latches. These are
heavy duty rectangular units similar in appearance to
warning above
.
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).
Specifications
Input Voltages
• 12 VDC (UNL-12), +20%, -10%.
• 24 VDC (UNL-24), +20%, -10%.
Current
• Standby:
40 mA (either voltage).
• Operation:
x
300 mA at 12 VDC: 3 A Input Surge
x
200 mA at 24 VDC; 1.5 A Input Surge
Operating Temperature
• -10˚ to 125˚ F
Mortise latches will
not function with the
Securitron UnLatch
Diagram 2
Dimensions
Diagram 1
Product
Diagram 3
Deadlatch Pin
Springlatch
Cylindrical Deadlatch
Springlatch
4-7/8"
[123.8mm]
1-1/4"
[31.75mm]
3-3/8"
[85.7mm]
4-1/8"
[104.6mm]
1-1/2"
[38.1mm]
1-5/16"
[33.3mm]
