2MR Clock Movement Spec sheetFeatures
Dial Sizes to 42"
Illuminated Dial Applications
Through Wall Applications to 10"
Front Mount Applications
Continuous Positive Drive
Worm / Worm Gear Drive
Synchronous Torque Gear Motor
Manufactured in the U.S.A.
2M, 2MR Series
BULLETIN C-452 revB
The National Time 2M / 2MR series clock
mechanisms are economical yet employ worm/
worm gear drive technology similar to its bigger
cousins providing smooth and continuous
advancement of the hands. The standard mechanism
is driven by a permanent magnet, 115V
50Hz or 60Hz synchronous gear motor. These
mechanisms offer mounting options to suit all
applications with dial sizes to 42" diameter.
Custom shaft lengths can be provided to meet
specific project requirements. Either can be set
manually by turning the minute hand without
damaging the unit. Access to the hands is required
to set the time on the 2M series mechanism
while the 2MR series incorporates dual
motors and the ability to be reset remotely with
multiple reset options.
Input Power: 120VAC specify 50Hz or 60Hz
Weight: 2.25 lbs. - 1 kg. (Approximate)
Reset : Manual Switch: 970 Reset Panel
Manual Switch with Pilot Clock: 970-PC
Auto: MC100 Master Clock with
GPS/LAN interface options.
1. Determine outside diameter of clock dial. This is not the cabinet size or sight
"A" = Dial Diameter
"B" = Minute hand center to tip
2. Determine the style hand that best matches the dial style or configuration for
the project. Custom hand styles can be provided. Consult factory.
3. Determine the length required for the minute hand from center of the dial, to tip
of hand that suits your dial style or configuration.
4. Determine dial or wall thickness.
National Time & Signal Corp. C-452 page 2
Through Wall Mount
National Time & Signal Corp. C-452 page 3
National Time & Signal Corp. C-452 page 4