UNSPSC 39121645: Oil circuit breaker

A type of circuit breaker that switches on and off electric circuit. It has the circuit breaking part immersed in insulating oil, and it is referred to as the oil circuit breaker or OCB or Oil Circuit Breaker.

UNSPSC 39121645 Oil circuit breaker is a Commodity code that state and local governments buy primarily as replacement electrical infrastructure components for facility operations and emergency response, rather than as raw materials. Recent solicitations show this code applied to work ranging from single-unit replacement projects at correctional facilities and utility substations to inventory procurement for school district maintenance operations and water utility control-panel fabrication. The mix of issuing bodies spans corrections departments, municipal utilities, county facilities management, school districts, and special districts—with repeat activity from Florida counties (Broward, Brevard, Hillsborough) and Michigan municipalities (Jackson) pursuing electrical code compliance and infrastructure upgrades. Work solicited includes replacement of air circuit breakers at detention facilities, vacuum circuit breaker installation at utility substations, motor circuit protector inventory management, electrical control-panel fabrication and refurbishment for water and wastewater systems, and switchgear testing and maintenance for medium and high voltage equipment.

The Illinois Department of Corrections posted an IFB on July 13, 2026 for emergency replacement and installation of a damaged 1600 AMP air circuit breaker at Dixon Correctional Center (response due July 16, 2026; maximum contract value $26,520 with prevailing wage requirements). Kissimmee Utility Authority solicited removal and installation of 15 kV oil circuit breakers at the Marydia Substation in Florida (bids due November 15, 2016, with two respondents submitting offers). The code sees concentration in Florida, Illinois, Michigan, and Texas, with secondary activity in Georgia, Virginia, Oregon, and Wisconsin. Fairfax County, Virginia issued an IFB for switchgear testing and preventative maintenance covering low and medium voltage circuit breakers across eight county wastewater facilities (due June 9, 2026), and the University of Mississippi posted a sealed-bid solicitation on July 13, 2026 for unspecified scope (due July 23, 2026), though the latter provides no detail on the actual work or goods being procured.