LiftMaster LA500 Residential / Light Commercial Swing Gate Operator - Manual (Page 4)

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In order to complete a proper installation you must satisfy the entrapment
protection chart shown. That means that the installation must have one primary
means of entrapment protection and one independent secondary means of
entrapment protection. Both primary and secondary entrapment protection
methods must be designed, arranged or configured to protect against
entrapments in both the open and close directions of gate travel.
For Example: For a gate system that is installed on a single-family residence
(UL325 Class I) you must provide the following: As your primary type of
entrapment protection you must provide
• Type A - Inherent (built into the operator) entrapment sensing and at
least one of the following as your secondary entrapment
protection:
• Type B1 - Non-contact sensors such as photoelectric sensors,
• Type B2 - Contact sensors such as gate edges
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 a multi-family housing unit (five or more single family units) hotel,
garage, retail store or other building servicing the general public.
CLASS III – INDUSTRIAL/LIMITED ACCESS VEHICULAR
GATE OPERATOR
A vehicular gate operator (or system) intended for use in a industrial location or
building such as a factory or loading dock area or other location not intended to
service 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.
UL325 ENTRAPMENT PROTECTION REQUIREMENTS
This chart illustrates the entrapment protection requirements for the UL325 classes.
NOTE: UL requires that all installations must have warning signs placed in plain
view on both sides of the gate to warn pedestrians of the dangers of motorized gate
systems.
I
II
III
IV
UL325 MODEL CLASSIFICATIONS
SAFETY
UL325 MODEL CLASSIFICATIONS
GATE OPERATOR ENTRAPMENT PROTECTION
UL325 Classification Swing Gate Operator
Primary Type Secondary Type
CLASS I-CLASS IV A B1 or B2