UNSPSC 32121710: Multilayer inductor

A type of inductor consisting of a layered coil, wound multiple times around the core. As a result of the multiple layers and the insulation between them, multi-layer inductors have a high inductance level.

UNSPSC 32121710 Multilayer inductor is a Commodity code that encompasses electrical protective relay systems, control panels, and related electrical components procured by state and local utilities, counties, school districts, and transit authorities for infrastructure protection, automation, and bay control. State and local buyers under this code are acquiring specialized electrical equipment including SEL protection relays (451 and 751 series), motor control centers, pump station control panels, solenoid replacements, ballasts, capacitors, and Schneider Electric components standardized for SCADA control integration and power distribution. The work involves replacement of aging protection systems, fabrication of UL 508A-certified control cabinets and enclosures in multiple electrical configurations, and supply of components for maintenance and emergency operations. Issuing bodies span utility authorities, county commissioners, independent school districts, transit authorities, and municipalities, with repeat buyers including Hillsborough County (Florida), which has issued multiple component and control panel solicitations.

Recent activity concentrates in Florida and Texas. Kissimmee Utility Authority issued a sole-source quotation (SS26054SH) in September 2026 for SEL 451 and 751 feeder protection relays to replace aging protection fleet assets, with quotes due August 24, 2026. Hillsborough County Board of County Commissioners solicited competitive sealed bids (ITB2600393) for pump station control panels and enclosures with an estimated contract value of $3.66 million over two years and a September 29, 2026 bid deadline, requiring UL 508A certification and weekly panel fabrication; the same County issued ITB2600277 in May 2026 for ongoing Schneider Electric components estimated at $519,787.19 over two years. Northside Independent School District (San Antonio, Texas) posted an IFB (IFB2026118) for electronic equipment, parts, repairs, and services with a September 24, 2026 deadline, requiring replacement of an expiring contract. Trinity Metro (Tarrant County, Texas) sought an IDIQ electrical parts supplier (IFB26T035) with an August 20, 2026 deadline. Gwinnett County, Georgia posted a competitive quote request (PE77023NONST2026000000620) for approximately 200 annual units each of 1500W metal halide ballasts and capacitors with a June 12, 2026 deadline.