Southern Folger 120M User Manual
FA Rev. 02-10 A15
For more information, please call 210.533.1231.
Description______________
Series 120M Deadlatches are pin
tumbler, motor-operated electromechanical locks for swinging doors.
Specify keying as follows:
121 Keyed case side
122 Keyed cover side
126 Keyed both sides
Applications_____________
Series 120M Deadlatches are jambmounted and designed for use in
medium or maximum security
applications to secure cell doors,
sallyports, corridors or entrance doors.
The motor provides smooth, quiet
operation and positive locking. 120M
locks are designed to be part of an
electrical system with remote operation
and monitoring. They afford flexibility
and safety to institution staff.
Operations______________
Standard (1): Series 120M locks unlock
when the motor is energized by a
momentary-contact switch. Once
unlocked, the latchbolt is held
mechanically retracted until the door is
opened. It then extends automatically.
Knob release(2): 120M Deadlatches
may be specified with knob release on
one side, where the knob is always
active. Knob may be mounted on the
case side, or the cover side.
Key holdback (3): When unlocked by
key, the deadlatch remains retracted
until relocked by turning the key in the
opposite direction. Available one side
only. This function is not UL Listed for
Fire Door Accessories to a three-hour
rating.
Note: Key cylinders for locks with key holdback
feature must be installed at the factory.
Testing__________________
120M Series Deadlatches and MaxiMogul
®
Key Cylinders have been tested
to 1,000,000 operations.
Standards Compliance___
All Series 120M locks are UL Listed as
Burglary-Resistant Mechanisms and Fire
Door Accessories to a three-hour rating,
except Key holdback function, which is
not Fire rated.
Maxi-Mogul
®
Key Cylinders meet UL437
requirements.
ASTM F1577 Grade 1 - Impact
Standard Features_______
Motor voltage – 120 VAC
Superior durability – Working parts
of stainless steel afford greater
strength and corrosion resistance.
Standard lock size – All models use
the same size case, cover and
mounting holes for simplified
installation and frame preparation.
External two-piece plug connector –
All models install without cover
removal. Simple plug-in connection to
field wiring.
External mounting holes – Easy
installation eliminates the need for
cover removal.
Standard lock – Mounts behind
frame and does not require a
faceplate.
1" throw latchbolt – Offers greater
security. Each bolt is hardened to
resist sawing. When latchbolt is
engaged in strike, bevel is concealed
to prevent picking.
Mechanical unlocking by key –
Specify Folger Adam Mogul cylinders,
Maxi-Mogul
®
high security cylinders or
other Mogul cylinders.
FOLGER ADAM ELECTRIC LOCKS
Key: Mogul
Door: Swinging
Security
Level: Medium/Maximum
120M DEADLATCH
A16 Printed in USA FA Rev. 02-10
P.O. Box 2021, San Antonio, TX 78297 Ph: 210.533.1231 Fx: 210.533.2211
Web: www.SouthernFolger.com
Email: info@southernfolger.com
Investment-cast stainless
steel strike – Furnished with four
tamper-resistant screws.
Fractional HP Motor – Permanently
lubricated for smooth quiet operation
with thermal overload protection and
a brake for accurate locking position.
Finish – Zinc plated case and cover.
Optional Features________
Faceplate – US32D finish.
Indication/auxiliary switches –
An indication switch monitors the
deadlock lever indicating a
deadlocked latchbolt. The auxiliary
switch monitors the latchbolt for
extended or retracted position.
Local electric key (LEK) – A unique
function which uses two types of keys
for applications where inmates carry
their own keys, but supervision is
necessary. One key turns in one
direction only and operates the lock
electrically. The supervisory key turns
in both directions to operate the lock
electrically and mechanically. The
electric operation may be cancelled
from a central console or control point
at any time via a three-position switch.
The Maxi-Mogul
®
Key Cylinder is
uniquely suited for this high
frequency operation, shown by cycle
test of 1,000,000 operations.
LEK not available on any 120M-3
Series Locks.
Key Cylinder Extension – When the
lock is keyed on the stop side of the
jamb, an extension eliminates the
need for a special, recessed frame
pocket. Specify E-3 for 3", E-4 for 4"
or E-5 for 5".
Optional motor voltage – 24 VAC or
24 VDC.
Specifications_________
Case and cover – 10 gauge steel.
Latchbolt – Investment-cast
stainless steel, hardened. 1"
throw.
Deadlock lever – Stainless
steel, adjustable for door gap
variations.
Bolt opening – Does not allow
access to mechanism.
Roller bolt – Investment-cast
stainless steel with stainless steel
roller.
Operating lever – Stainless steel
to operate with solenoid.
Strike – Investment-cast stainless
steel, attached with screws in two
directions.
Motor – 120 VAC continuous
duty, 24 VAC or 24 VDC optional,
synchronous-type gearmotor.
Springs – Stainless steel.
Electrical
Characteristics________
AC motors – Synchronous-type
gearmotor with brake.
Ratings: 120 VAC: 60 Hz, 1.3
amps at full load.
DC motors – Permanent-magnet
gearmotor.
Ratings: 24 VDC, 2.2 amps at full
load.
Switch – SPDT, UL Listed,
15 amps @ 125 or 250 VAC.
FOLGER ADAM ELECTRIC LOCKS
Key: Mogul
Door: Swinging
Security
Level: Medium/Maximum
120M DEADLATCH
MODEL NO.
OPERATION
DESCRIPTION
LATCHBACK
INDICATION SWITCHES
LEK
AVAILABLE
DEADLATCH
120M-1-01 Standard (1) X X Yes
120M-2-01 Knob Release (2) X X Yes
120M-3-01 Key Holdback (3) X X No
Dimensional Data________
Note: Dimensions are for information
and planning purposes only, and should
not be used as templates.
The chart below shows applicability of
above options to all 120M Models.
For complete details, see How to
Specify in this section.
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