
-17-
SAFETY SECTION
USAutomatic gate operators are certified to UL325 Vehicular Class I and Class II swing gate standards.
UL325 identifies four different classes of gate operators these classes are listed below:
Class I: Residential vehicular gate operator- a vehicular gate operator (or system) intended for use in a home of one
to four single family dwellings or a garage or parking area associated therewith.
Class II: Commercial/General access vehicular gate operator- a vehicular gate operator (or system) intended for use in
a commercial location or building such as multi-family housing unit (five or more single family units), hotel
garages, retail store, or other buildings servicing the general public.
Class III: Industrial/Limited access vehicular gate operator- a vehicular gate operator (or system) intended for use in an
industrial location or building such as a factory or loading dock area or other locations not intended to serve
the general public.
Class IV: Restricted Access vehicular gate operator- a vehicular gate operator (or system) intended for use in a guarded
industrial location or building such as an airport security area or other restricted access locations not
servicing the general public, in which unauthorized access is prevented via supervision by security
personnel.
Patriot I and Patriot II gate operators are intended to be installed as Class I or Class II vehicular gate operators, and the
maximum load of each gate leaf should not exceed 650 pounds with a length not to exceed sixteen feet.
SECONDARY ENTRAPMENT DEVICES
USAutomatic has designed all control boards with secondary entrapment device inputs and secondary safety devices must
be installed with all installations. USAutomatic recommends the use of the following devices and has provided herein
instructions for the connection of such devices.
NOTE: USAutomatic recommends that these devices be CONNECTED after proper gate installation and operation has
been verified. Then connect one device and verify proper operation before installing the next device. Ensure that
power is disconnected from the control board prior to connecting any wires to the control board.
Contact Safety Devices: Safety Edges
Manufacturer - Miller Edge
Model Description
MGR20 3 sided protection fitted for 2” round frame
MGS20 3 sided protection fitted for 2” square frame
ME120 1-sided protection attaches to flat surface
MG020 1-sided protection attaches to flat surface
ME123 1-sided protection attaches to flat surface
Non-Contact Safety Device: Photo Eyes
Manufacturer – EMX Industries INC.
Model Description
IRB-325 +12vdc Photo Eye
Manufacturer – Allen-Bradley
Model Description
42GRU-9001 +12vdc Photo Eye
Entrapment Alarm Devices: Sirens
Manufacturer – USAutomatic
Model Description
W12b-3 Piezoelectric siren, 108db +12vdc
NOTE:For information about installation or applications, consult factory