Scientific Systems has been building HVAC, pressurization, and chiller units for hazardous (classified) areas since 1965, and is the oldest and manufacturer in the industry. Because we manufacture the units, we will be here to assist with any questions you have post-installation.
“Explosion Proof” is only a generic term. When applied to equipment it does not by itself assure that the item is safe to use in a hazardous location. Required are additional code designations as issued by agencies in the United States, Canada, Europe and other parts of the world.
In North America and many other countries explosion-proof electrical equipment must conform with NFPA 70 National Electrical Code (NEC). Western Europe and some other countries work with CENELEC standards or accept equipment certified under either system.
An “Explosion Proof” designation under the NEC must include a “Class”, a “Group” and a “Division”. Class I refers to gases, Class II to dusts, and Class III to fibers and flyings. Groups relate to the ignitability of the material. Two Divisions are defined as outlined below.
For more information explosion proof rating, please get in touch with us!