Page 1
WIRING INSTRUCTIONS
Wiring 12 Vdc or 24 Vdc Transormer
12 Vdc Transormer
(Provided)
Green Green
12 Vdc @ 500 mA 24 Vdc @ 500 mA
HARDWARE LIST AND SPECIFICATIONS
WIRING & SPECIFICATIONS
24 Vdc Transormer
(Not Provided)
White WhiteBlack Black
Red Red
Model MG 1300
Do Not Use Wire
Smaller than
22 AWG
Magnetic Lock Plate and Junction Box
Magnetic Lock
Magnetic Lock Screws (4)
Housing: Stainless Steel
Junction Box: Steel
Magnet Plate: Steel
Plating: Zinc Clear
Power Supply
12 Vdc Supply:
Transformer: input 120 Vac
Output: 7.2 VA 12 Vdc @ 600 mA
24 Vdc Supply (Not provided):
Transformer: input 120 Vac
Output: 14.4 VA 24 Vdc @ 600 mA
Current draw
250 mA @ 24 V, 500 mA @ 12 V 600 mA
• If power supply is 12 Vdc and wire is 50 ft. use
18 AWG, if wire is 150 ft. use 14 AWG
• If power supply is 24 Vdc and wire is 50 ft use
22 AWG, if wire is 150 ft. use 18 AWG
Junction Plate
Cover Screws (4)
Junction Box Cover
Transformer
Armature Side Screw
Armature Plate
Rubber Washer
Washers
Guide Pins (2)
Armature
Armature Screw
Page 2
MOUNTING THE MG 1300 MAGNETIC LOCK
HANDLING:
magnet plate are ruggedly constructed and designed to
provide years of trouble-free service. Care must be taken,
however, during installation and during actual use so that
the magnet face and magnet plate face are free of dirt,
rust, burrs, paint, or any other obstruction which may
interfere with the magnet and magnet plate making good
contact.
The magnetic lock, junction box and
MOUNTING INSTALLATION
1
Position the magnetic lock with armature plate at desired location and tack weld the magnetic lock plate to the gate post.
Do not fully weld or you will burn the wire or lock.
2
Tack weld armature plate to gate. Again,
3
Remove the armature plate with rubber washer and magnetic lock from the junction box and
4
After it cools-off, reassemble magnetic lock and armature with the rubber washer.
Welding
Do not fully weld or you will burn the rubber pieces.
fully weld the plates.
Anti-Tamper Plug
Magnetic Lock
Mounting Screws
Guide
Pins
Welding
POST
For Technical Support: www.liftmaster.com 1-800-528-2806
Junction Box
Magnetic Lock
Magnetic Lock Plate
Anti-Tamper Plug
Armature
Screw
Armature
It is necessary to separate the MG 1300
parts from the armature and magnet
plates prior to welding.
Failure to do so will cause the wiring
and rubber pieces to burn and melt.
Armature
Allen Screw
Rubber
Washer
Washers
Armature
Plate
GATE
© 2011 The Chamberlain Group, Inc.
All Rights Reserved01-50688D
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