UNSPSC 39121314: Explosion proof enclosure

Structure designed to contain and prevent release heat from combusted gas. Uses a flamepath to cool the gas before it reaches outside.

UNSPSC 39121314 Explosion proof enclosure is a Commodity code that covers electrical equipment enclosures and control panels designed for hazardous or challenging environments. Recent state and local solicitations under this code, however, reveal a markedly different pattern: the actual work being procured spans water and wastewater control panel fabrication and refurbishment, electrical switchboards and motor control centers, circuit breaker replacement and testing, and switchgear maintenance—all of which involve enclosed electrical distribution and protection equipment rather than standalone explosion-proof housings. State and local buyers using this code include county utilities (Kissimmee Utility Authority, Broward County, Hillsborough County), university facilities management (University of Mississippi), municipal utilities and water districts (Lubbock Power & Light, Bay County, City of Bartow), correctional facilities (Texas Department of Criminal Justice, Illinois Department of Corrections), school districts (Northside Independent School District, Pinellas County Schools), and county or city departments managing water, wastewater, and electrical infrastructure. The work being solicited is primarily industrial-scale—multi-phase pump station control centers in duplex through hexaplex configurations, 15 kV to 480 V circuit breaker installations, and complete electrical switchboard replacements at generating stations and treatment facilities. Fabrication work involves compliance with the National Electrical Code, NEMA standards, UL specifications, and Florida or state-specific building codes, with vendors typically required to hold master electrician licenses or Certified Electrical Contractor certifications.

Geographic activity concentrates in Florida (Broward County, Hillsborough County, Bay County, Kissimmee Utility Authority, City of Bartow), with secondary activity in Texas (Lubbock Power & Light, Texas Department of Criminal Justice), the Upper Midwest (University of Mississippi, Wisconsin, Michigan, Illinois), and Virginia. Two representative recent opportunities illustrate the scope: Hillsborough County Board of County Commissioners' ITB 26-00393 for pump station control panels and other enclosures with a two-year contract value of $3.66 million (bids due September 29, 2026); and Broward County's open-end indefinite-quantity contracts for water and wastewater control panel fabrication and refurbishment (PNC2132146B2 and PNC2132148B3, bids due June 22–26, 2026), with annual pass-through allowances of $38,000 to $80,000 for materials, equipment, and specialty services. Fairfax County, Virginia's IFB 2000004382 for switchgear testing and preventative maintenance (five-year term, bids due June 9, 2026) and Kissimmee Utility Authority's IFB 17-003-CV for 15 kV circuit breaker replacement at Marydia Substation (sealed bids due November 15, 2016, with two vendors submitting bids ranging from $74,710 to $77,500) further exemplify the industrial electrical equipment focus. Most solicitations require sealed bidding with electronic submission; several mandate pre-bid meetings or site visits, UL 508A certification, prevailing wage compliance, and insurance coverage ranging from $1 million to $2 million in general liability. Activity has been steady from April through October 2026, with no set-asides explicitly stated in most opportunities, though some jurisdictions reference SBE or local-preference eligibility.