Controlled Products Systems Group AOMSL1501HPDC - Manual (Page 5)

Class one: Residential
A vehicle gate operator intended for use at a home of one to four single family dwellings, garages or parking area.
Class Two: Commercial or General Public Access
A vehicular gate operator intended for use at a commercial location or building such as a multi-family housing unit (five or
more single family units), hotel, garages, retail stores, other buildings servicing the general public.
Class three: Industrial or limited Access
A vehicular gate operator intended for use at an industrial location or building such as a factory, loading dock area, or other
locations not intended to service the general public.
Class Four: Restricted Access
A vehicular gate operator intended for use at a guarded industrial location or building such as airport security areas or other
restricted access locations not servicing the general public where unauthorized access is prevented via supervision by
security personnel.
Other components required to satisfy UL 325
Each class must have a primary and secondary means to sense and react to obstructions within two seconds.
The six types of obstruction sensing systems are
:
Type A:
Inherent obstruction sensing system. This system must sense and initiate the reverse of the gate within two seconds of
contact with a solid object.
Type B 1:
Provision for connection of a non-contact device can be used, such as a secondary protection.
Type B2:
Provision for connection of a contact sensor. Examples include an edge device or equivalent. This can be used for
secondary protection.
Type C:
Inherent adjustable clutch or pressure relief valve.
Type D:
Provision for connection of or provided with and actuation device requiring continuous pressure.
Type E:
Inherent audio alarm.
All of All-O-Matic Inc’s Gate operators conform to the most ridged Class One.
DIFFERENT UL 325 CLASS TYPES
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