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HL40LV
FOR  IMMEDIATE  RELEASE
Contact: Steve Coulton
Kooltronic, Inc.
(609) 466-3400
KOOLTRONIC PATENTS HAZARDOUS LOCATION PRODUCT LINE
patent logo

Pennington, NJ

Kooltronic, Inc. is proud to announce that its Hazardous Location (HL) Series line of air conditioners has been granted a patent by the U.S. Patent & Trademark Office (U.S. Patent No. 9,157,670 B2). All electrical components are located in a sealed, pressurized compartment, representing a major advance in safety and reliability. This design utilizes the electrical enclosure's existing purge system, and allows for general purpose components to be used, reducing both initial and service costs. The characteristics of these units are:

  • All models UL Listed per UL 484, Special Purpose Air Conditioners
  • All models UL Recognized per NFPA 496: 2013, Purged and Pressurized Enclosures for Electrical Equipment
  • Meets NEC Class I, Division 1, Groups A, B, C & D and Class I, Zone 1, Groups IIA, IIB plus hydrogen and IIC Hazardous Locations when used with an approved Type X Purge System on the electrical enclosure
  • Meets NEC Class I, Division 2, Groups A, B, C & D and Class I, Zone 2, Groups IIA, IIB plus hydrogen and IIC Hazardous Locations when used with an approved Type Z Purge System on the electrical enclosure
  • Temperature Classification is T-4, 275°F/135°C
  • Maintains NEMA Type 12, 3R & 4/4X Ratings per UL50, Cabinets and Boxes

These units are used where hazardous gases are or may be present, and are also suitable for corrosive environments. The patented design represents a major advance in safety and reliability. Utilizing the enclosure's existing purge system, these units are offered at a lower cost than traditionally designed hazardous location units.

The Hazardous Location Series offers capacities from 3,000 to 24,000 BTU/H. Many features, such as a programmable thermostat, compressor short cycling protector and Hi/Lo temperature alarm are standard.

Typical applications include oil refineries, paint and varnish manufacturing plants, petrochemical sites and hazardous materials storage sites.

In the 60th year of service to its customers, Kooltronic is the leading manufacturer of air conditioners, heat exchangers, fans and blowers designed specifically to cool the interior of enclosures containing heat sensitive electrical/electronic components. The company has a complete manufacturing facility and sales office at its headquarters in Pennington, NJ.

For more information on high quality Kooltronic cooling products, please call (800) 321-KOOL.

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Monday, July 14, 2025  
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Contact Info:
Kooltronic, Inc.
30 Pennington-Hopewell Road
Pennington, NJ 08534 USA
609-466-3400
800-321-KOOL
609-466-1114 (fax)
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