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Eagle Access Control Systems, Inc. / (800) 708-8848 / www.eagleoperators.om 

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F.  Controls intended for user activation must be located at least six feet (6’) away from any 
moving part of the gate and where the user is prevented from reaching over, under, around or 
through the gate to operate the controls. Outdoor or easily accessible controls shall have a 
security feature to prevent unauthorized use. 

G. The Stop and/or Reset button must be located in the line-of-sight of the gate. Activation of the 
reset control shall not cause the operator to start. 

H. A minimum of two (2) 

WARNING SIGNS

 shall be installed, one on each side of the gate where 

easily visible. 

I.  For gate operators utilizing a non-contact sensor in accordance Usage Class: 

1)  See instructions on the placement of non-contact sensors for each Type of application, 

2)  Care shall be exercised to reduce the risk of nuisance tripping, such as when a vehicle, 

trips the sensor while the gate is still moving, and 

3)  One or more non-contact sensors shall be located where the risk of entrapment or 

obstruction exists, such as the perimeter reachable by a moving gate or barrier. 

J.  For a gate operator utilizing a contact sensor in accordance with Usage Class: 

1)  One or more contact sensors shall be located where the risk of entrapment or obstruction 

exists, such as at the leading edge, trailing edge, and post-mounted both inside and 
outside of a vehicular horizontal slide gate. 

2)  One or more contact sensors shall be located at the bottom edge of a vehicular vertical lift 

gate. 

UL Listings

 (continued) 

3)  One or more contact sensors shall be located at the pinch point of a vehicular vertical 

pivot gate. 

4)  A hardwired contact sensor shall be located and its wiring arranged so that the 

communication between the sensor and the gate operator is not subjected to mechanical 
damage. 

5)  A wireless contact sensor such as one that transmits radio frequency (RF) signals to the 

gate operator for entrapment protection functions shall be located where the transmission 
of the signals are not obstructed or impeded by building structures, natural landscaping or 
similar obstruction. A wireless contact sensor shall function under the intended end-use 
conditions. 

6)  One or more contact sensors shall be located on the inside and outside leading  edge of a 

swing gate. Additionally, if the bottom edge of a swing gate is greater than 6 inches (152 
mm) above the ground at any point in its arc of travel, one or more contact sensors shall 
be located on the bottom edge. 

7)  One or more contact sensors shall be located at the bottom edge of a vertical barrier 

(arm). 

UL 325 MODEL CLASSIFICATIONS 

 

Class I (Residential vehicular gate operator) - A 
vehicular gate operator (opener 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 (opener 
or system) intended for use in a commercial 
location or building such as a multi-family housing 
unit (five or more single family units), hotel, 
garages, retail store, or other buildings servicing 
the general public.  

Class III (Commercial / General access vehicular 
gate operator) - A vehicular gate operator (opener 
or system) intended for use in an industrial 
location, loading dock area, or other location not 
intended to service the general public.  

Class IV (Commercial / General access vehicular 
gate operator) - A vehicular gate operator (opener 
or system) intended for use in a guarded 
industrial location or buildings such as airport 
security area or other restricted access locations 
not servicing the general public, in which 
unauthorized access is prevented via supervision 
by security personnel

 

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