PPA DZ 1500, Technical Manual

4

1 - GATE OPERATOR CLASSIFICATIONS

All gate operators can be divided into one of four classes depending on their design and usage. Install this gate operator only when the 

operator is appropriate for the construction and usage class as defined below:

Class I Residential Vehicular Gate Operator

A vehicular gate operator intended for use in a home or for one to four single family dwellings with a common garage or parking area 

associated with these dwellings.

Class II Commercial / General Access Vehicular Gate Operator

A vehicular gate operator intended for use in a commercial location or building such as a multi-family housing unit of five or more 

single family units, hotel, retail store or other building servicing the general public.

Class III Industrial / Limited Access Vehicular Gate Operator

A vehicular gate operator intended for use in an 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 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.

2 - SAFETY ACCESSORY SELECTION

All UL325 PPA compliant gate operators will accept external entrapment protection devices to protect people from motorized gate 

systems. UL325 requires that the type of entrapment protection correctly matches each gate application. 

This equipment must be installed with at least two entrapment protection means. Below are the types of entrapment protection 

systems recognized by UL325 for use on this operator.

3 - ENTRAPMENT PROTECTION TYPES

Type A: 

Inherent obstruction sensing system, self-contained within the operator. This system must sense and initiate the reverse of the gate 

within two seconds of contact with a solid object.

Type B1:

Connections provided for a non-contact device, such as a photoelectric eye can be used as a secondary protection.

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 danger of motorized 

gate systems.

Approved Non-contact Devices (Type B1)

The following non-contact obstruction detection devices have been approved for use with this slide gate operator (or barrier gate 

operator) as part of a UL325 compliant installation:

Edge Miller 4-wire pulsed (monitored) devices.