Hazardous Locations

Class 1, Division 1 interior

Polar King can provide freezer and cooler storage units for hazardous (classified) locations use. Whether you need a standard explosion proof freezer unit or a customized freezer unit, we can take care of your requirements. We offer Class 1, 2, and 3, and Division 1 and 2 ratings for the interior and exterior cooler and freezer units of the walk-in module. All of our units comply with Chapter 5 of the National Electric Code. Our walk-in cooler and freezer units can offer gas detection system (LEL) and/or an integrated 500 gallon containment sump. Below are the classifications inside North America.

Class 1
Flammable gases or vapors are present in the air in quantities sufficient to produce explosive or ignitable mixtures.

Class 2
Combustible or conductive dusts are present.

Class 3
Ignitable fibers or flyings are present, but not likely to be in suspension in sufficient quantities to produce ignitable mixtures. (Group classifications are not applied to this class)

Division 1
The substance referred to by class is present during normal conditions.

Division 2
The substance referred to by class is present only in abnormal conditions, such as a container failure or system breakdown.
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