Southern Folger 51M User Manual
FA Rev. 02-10 A7
For more information, please call 210.533.1231.
Description______________
Series 51M Deadlatches are lever
tumbler, motor operated locks for
swinging doors. Specify keying as
follows:
52M Five tumbler model,
keyed cover side
52M-6 Six tumbler model,
keyed cover side
56M Five tumbler model,
keyed both sides
56M-6 Six tumbler model,
keyed both sides
Applications_____________
These jamb-mounted locks provide
maximum security for cell, corridor or
entryway doors. They slam lock on
closure and provide staff with the safety
and convenience of remote, electric
unlocking. Quiet motor operation is well
suited to residence areas.
Operations______________
When used in conjunction with a
momentary contact switch, the unit
unlocks when energized. The latchbolt
retracts, and once retracted, it is held
mechanically retracted until the door is
opened. The latchbolt extends when the
door is open.
Standards Compliance___
51M Series Deadlatches are UL Listed as
Burglary-Resistant Mechanisms and as
Fire Door Accessories to a three-hour
rating. UL Fire Door rating is not
available with Model 51MC.
ASTM F 1577 Grade 1 - Impact
Standard Features_______
Motor voltage – 120VAC
Two piece plug connector –
Simplifies wiring.
Quiet operation – Unlocks by
smooth motor action.
Automatic deadlocking – All models
automatically deadlock on closure.
Rugged construction – 7 gauge steel
for durability.
Indication switch – A lock status
indication switch which monitors the
extension of the latch bolt and the
dead locked condition is included.
High security – Five or six tumbler
models available. Six tumbler model
offers greater pick resistance.
Mechanical unlocking by key – In
the event of power failure, or at any
time, 51M Series deadlatches may be
unlocked by prison paracentric key;
latchbolt remains retracted until
relocked by key.
Solid steel latchbolt – Zinc plated,
with two hardened steel pins to resist
sawing.
Deadlock actuator – Roller type, zinc
plated steel, adjustable for variations
in door-to-jamb clearance.
Full 3/4" bolt throw – Projects 1/4"
when retracted.
Finish – Zinc plated.
FOLGER ADAM ELECTRIC LOCKS
Key: Prison Paracentric
Door: Swinging
Security
Level: Maximum
51M DEADLATCH
A8 Printed in USA FA Rev. 02-10
FOLGER ADAM ELECTRIC LOCKS
Key: Prison Paracentric
Door: Swinging
Security
Level: Maximum
51M DEADLATCH
Rev 11-12
Optional Features________
Motor voltage – 24VDC
Continuous-duty function – Using a
two-position, maintained contact
switch, and a two-position cam on the
motor, the latchbolt may be held
retracted for extended periods. The
latchbolt extends only when the door
is open and the motor is energized a
second time. The latchbolt deadlocks
when extended and the door is
closed.
No-notch feature – The holdback
lever has no notch to hold the
latchbolt mechanically retracted. This
feature may be used with Continuous
Duty feature, and operates in the
same manner as above, except that
the latchbolt extends when the motor
is energized a second time regardless
of the position of the door.
Interlocking – Accomplished through
the control console.
Specifications_________
Case and cover – 7 gauge steel.
Latchbolt – Solid steel with
hardened steel roller pins.
Deadlock actuator – Zinc plated
steel, roller-type.
Lever tumblers – Spring-temper
brass, activated by heavy
phosphor-bronze springs.
Key cylinder – One piece, bronze
alloy with paracentric keyway.
Bolt size – 2" x 3/4"
Bolt throw – 3/4"
Electrical
Characteristics________
Motor (AC) – Synchronous-type
with brake.
Ratings (120VAC) – 60HZ,
1.3 amps full load.
Ratings (220VAC) – 60HZ,
.65 amps full load.
Motor (DC) – Permanent magnet
gearmotor.
How to Specify___________
OPERATION KEYING
Standard
Continuous
Duty
With
No-notch
NOTE: The above are standard 5-tumbler models. To specify
6-tumbler units, add -6 after the basic model number.
Example: 52M-6-L
one side 52ML 52MLI
two sides 56ML 56MLI
one side 52MCL N/A
two sides 56MCL N/A
one side 52MCLNN N/A
two sides 56MCLNN N/A
W/INDICATION
SWITCHES
W/INDICATION
& INT. SWITCHES
Dimensional Data________
Note: Dimensions are for information
and planning purposes only, and should
not be used as templates.
Ratings – 24VDC, 2.2 amps at
full load.
Indication switch – SPDT, UL
Listed, 15 amps at 125VAC
or 250VAC.
POCKET COVER HINGE SIDE
25 LHRB LATCHBOLT RHRB 26
56 LOCK
Specify circled swing number when ordering.
LEGEND
P.O. Box 2021, San Antonio, TX 78297 Ph: 210.533.1231 Fx: 210.533.2211
Web: www.SouthernFolger.com
KEYED
BOTH
SIDES
52 LOCK
KEYED
HINGE
SIDE
27 LHRB LATCHBOLT RHRB 28
Email: info@southernfolger.com
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