UNSPSC 39122005: Inverter drive output filter

Electrical filter or choke unit connected to an inverter drive to filter unwanted RFI and EMI.

UNSPSC 39122005 Inverter drive output filter (Commodity) covers replacement and repair services for variable frequency drives (VFDs) and allied electrical infrastructure components at water treatment facilities, airports, convention centers, and municipal water systems. State and local governments procuring under this code seek VFD units ranging from fractional horsepower to 500 HP across multiple manufacturers (ABB, Allen-Bradley, Schneider Electric, Siemens, Toshiba, Yaskawa, and others), preventative and corrective maintenance contracts with emergency response requirements, drive module replacements, and comprehensive electrical system upgrades. Issuing bodies include county water districts, municipal water departments, state environmental and ecology agencies, airport authorities, and cities; repeat buyers include the Eastern Municipal Water District (EMWD, Riverside County, California), the City of Phoenix Water Services Department (Arizona), the Washington State Department of Ecology, and the City of Tampa (Florida).

Recent activity concentrates in California, Florida, Georgia, and Arizona. The Eastern Municipal Water District issued RFB 3921 (due April 30, 2026) for three 500 HP VFDs in NEMA 1 enclosures at its Palomar Booster facility in Wildomar, and RFB 3918 (due March 25, 2026) for an ABB ACS880-04 AC Drive Module replacement at Perris Water Filtration Plant. The Washington State Department of Ecology posted IFB 2618 ADM (due July 20, 2026) for electrical maintenance services covering annual preventative maintenance on 151 switchboards, 36 variable frequency drives, and 15 UPS units at its Lacey headquarters, with a pre-bid conference on June 18, 2026 and a small business or veteran-owned business set-aside. The Greater Orlando Aviation Authority solicited through RFP 26-414 (due March 31, 2026) for VFD repair and replacement services covering approximately 368 drives across multiple Orlando airport facilities, requiring ten years of continuous VFD experience and 24/7 on-call availability. The City of Tampa pursued single-source procurements with Stan Weaver & Company for ABB VFDs and related services at the Convention Center and other facilities (contracts 25-X-00916 and 26-X-00942, both posted March 2026). The City of Phoenix Water Services Department issued IFB 26-0087 (due September 15, 2025) for a five-year VFD supply contract covering wastewater and water treatment plants, with emphasis on DBE and small business participation. DeKalb County (Georgia) posted ITB 2026-076 (due July 13, 2026) for IT and low-voltage infrastructure installation at the DeKalb Tennis Center, including electrical conduit, cabling, and related work.