NIGP 55935: Drive Motors and Accessories

NIGP 55935 Drive Motors and Accessories, an Item code, encompasses the procurement of variable frequency drives (VFDs), inverters, motor control equipment, and related accessories that state and local governments source for infrastructure operations—wastewater and water treatment plants, lift stations, and transit vehicle systems. Recent solicitations show state and local buyers purchasing both low-voltage and medium-voltage VFDs from multiple manufacturers including Allen Bradley, Eaton/Cutler Hammer, Fuji, GE, Schneider/Square D, Siemens, and Toshiba, as well as specialized inverters for light rail applications. The issuing bodies span municipal water utilities and regional transit authorities, with procurement conducted through standard IFB and ITB vehicles.

The City of Phoenix Water Services Department and the Metropolitan Transit Authority of Harris County, Texas (METRO) represent the recent activity under this code. Phoenix Water Services posted IFB 26-0087 on August 25, 2025, seeking a five-year contract for VFDs and accessories to serve wastewater and water treatment plants across Maricopa County, with a pre-offer conference on September 2, 2025, written inquiries due September 4, 2025, and final responses due September 15, 2025; the solicitation emphasizes DBE and small business participation with monthly reporting requirements. METRO posted IFB-DOC2022084832 on February 16, 2026, for purchase and delivery of two units of KIEPE ELEKTRIK Direct Pulse Inverters (brand-specific, no equivalent products permitted) for light rail vehicles, with responses due March 18, 2026, and public bid opening March 19, 2026, at METRO's procurement office in Houston. Texas and Arizona show recent activity; no geographic concentration pattern emerges from two opportunities.