UNSPSC 32121900: Resonators

Electronic frequency control devices

UNSPSC 32121900 Resonators is a Class code that encompasses electrical protection and control relays, motor control centers, electrical components, and related equipment used in utility, municipal infrastructure, and facility operations. State and local governments procure these items primarily through utility authorities, county infrastructure agencies, and school districts to maintain, replace, and upgrade electrical systems serving water treatment, wastewater management, power distribution, and building operations. The scope spans both specific-model replacements—such as Schweitzer Engineering Laboratories (SEL) protection relays for SCADA integration—and standardized electrical components like ballasts, capacitors, and Schneider Electric components for control systems and facility maintenance. Issuing bodies include utility authorities (Kissimmee Utility Authority), county commissioners (Hillsborough County, Bay County), city governments (City of Tampa, City of Arlington, City of Fort Worth), school districts (Northside Independent School District), and regional transit authorities (Trinity Metro).

Recent activity concentrates in Florida and Texas. Kissimmee Utility Authority issued RFQ SS26054SH (due August 24, 2026) for SEL 451 and SEL 751 protection relays as a sole-source procurement through Power Connections, Inc., the exclusive authorized distributor; the relays replace aging equipment and integrate with existing SCADA infrastructure. Hillsborough County Board of County Commissioners posted ITB2600393 (due September 29, 2026) for pump station control panels and enclosures with an estimated value of $3.66 million over two years, requiring UL 508A certification and weekly fabrication of two to four complete panels. Northside Independent School District in San Antonio issued IFB2026118 (due September 24, 2026) for electronic equipment, parts, repairs, rentals, and services. Trinity Metro in Tarrant County, Texas posted IFB26T035 (due August 20, 2026) to establish an IDIQ contract for electrical materials across facilities. Gwinnett County, Georgia solicited competitive quotes for ballasts and capacitors (due June 12, 2026) for approximately 200 units annually, and Hillsborough County issued ITB2600277 (due June 18, 2026) for Schneider Electric components with an estimated two-year value of $519,787.19.