UNSPSC 39121603: Miniature circuit breakers

UNSPSC 39121603 Miniature circuit breakers (Commodity) encompasses electrical control and switching components used in water and wastewater utility operations, though recent state and local solicitations under this code show a significant scope divergence—most opportunities target motor control centers, programmable logic controllers, and integrated control panel systems rather than discrete miniature circuit breakers. State and local buyers include municipal utilities (wastewater, water reclamation, direct diversion), county water districts, and school districts across multiple states. The work being solicited ranges from single-source replacement parts and warranty service (City of Tampa's Solcon Soft-Start procurement) to comprehensive control system replacements and installations requiring UL 508A certification, NEC compliance, and 24/7 emergency support. Hillsborough County's pump station control panel ITB, for example, specified fabrication of multi-configuration electrical enclosures and junction boxes at roughly $21,000 to $112,000 per unit, with weekly deliveries and mandatory on-site support. The City of Santa Fe's SCADA and PLC replacement RFP called for Schneider Electric systems integration across 13 water system sites, while Northside Independent School District in Texas issued a broad electrical equipment, parts, and services IFB covering ongoing supplies and repairs to San Antonio locations.

Geographic activity concentrates in Florida (Hillsborough County, Tampa, Bartow, Bay County) and California (Riverside County, West Basin Municipal Water District in Los Angeles County), with additional recent opportunities in Texas, New Mexico, and Minnesota cooperative purchasing programs. Recent representative solicitations include Hillsborough County Board of County Commissioners' ITB 26-00393 for pump station control panels and enclosures (bids due September 29, 2026; estimated contract value $3.66 million over two years with ten contractors bidding); City of Santa Fe's RFP FY26-RFP-036 for PLC replacement and SCADA modifications (proposal deadline December 18, 2025, via OpenGov; best-value evaluation with 35% expertise, 30% cost, 25% interview, and 10% value-added weighting); West Basin Municipal Water District's RFBTH0120 for TRWRP 93 Motor Control Center replacement in Torrance, California (RFB with mandatory pre-bid and onsite walk March 12, 2026; 250-day substantial completion requirement; $1,000 daily liquidated damages); and Northside Independent School District's IFB 2026098 for electrical equipment, parts, supplies, rentals, repairs, and services (bids due July 1, 2026; replaces expiring contract 2025-100). The code exhibits substantial activity in water and wastewater infrastructure modernization, particularly control system replacement and SCADA integration projects requiring specialized electrical design and programming expertise.