UNSPSC 32151504: Electronic circuit equalizer

An equalizer that employs active components such as transistors in its processing circuits. A pre-amplifying circuit generally follows each stage of actual equalization, boosting the signal level to restore unity gain.

UNSPSC 32151504 Electronic circuit equalizer is a Commodity code covering specialized electrical control and protection equipment that state and local governments procure for utility infrastructure, water treatment facilities, and municipal systems. Recent solicitations reveal the code encompasses protection relays, motor control centers, control panels, ballasts, capacitors, and associated electrical components used in SCADA systems, pump stations, and facility automation. The work includes supply of OEM-equivalent or approved substitutes, installation and integration with existing electrical systems, factory acceptance testing, and emergency repair services. Issuing bodies span utility authorities, county governments, school districts, and transit authorities. Kissimmee Utility Authority solicited SEL 451 and SEL 751 protection relays as a sole-source procurement under RFQ SS26054SH (due August 24, 2026), prioritizing full compatibility with existing SCADA infrastructure and standardized relay settings. Northside Independent School District issued IFB2026118 for electronic equipment parts, repairs, rentals, and services (due September 24, 2026), replacing an expiring contract and requiring all vendors to recompete or forfeit future business. Hillsborough County Board of County Commissioners solicited pump station control panels and other enclosures under ITB2600393 (due September 29, 2026, extended from September 22) with an estimated contract value of $3.66 million over two years, requiring UL 508A certification and weekly fabrication volumes of two to four complete panels. The same county also issued ITB2600277 for Schneider brand electrical components with an estimated value of $519,787.19 over two years (due June 18, 2026).

Recent activity concentrates in Florida and Texas. Hillsborough County, Kissimmee Utility Authority, and Bay County represent repeat solicitors in the Florida utility and infrastructure space. Gwinnett County, Georgia issued a competitive quote for ballasts and capacitors on an annual contract (due June 12, 2026) covering approximately 200 units annually. Trinity Metro in Tarrant County, Texas established an IDIQ electrical parts supplier contract (due August 20, 2026) for maintenance and emergency operations across multiple facilities. The City of Tampa issued a single-unit RFQ for a solenoid supply and installation (due June 19, 2026, same-day response). Control panel unit prices in recent Hillsborough County competition ranged from approximately $21,000 to $112,000 depending on specifications; ten contractors bid on the pump station project, with the lowest aggregate bid at $2,548,778.81. Sole-source and standardized-equipment procurements dominate the code's recent activity, with compatibility and SCADA integration requirements creating barriers to commodity-level competition and favoring established authorized distributors.