UNSPSC 39122310: Selecting ground relay

A relay that selectively interrupts the accidental electric line by detecting the ground fault in the distribution line of underground neutral system. It is a relay that selectively interrupts by detecting zero-phase sequence voltage and zero-phase earth fault current occurring at the location of relay installation in the event of ground fault.

UNSPSC 39122310 Selecting ground relay is a Commodity code that encompasses electrical control components and switching devices used in water treatment, wastewater reclamation, power distribution, and utility infrastructure management. Recent state and local solicitations under this code reflect procurement of specialized electrical equipment including motor control centers, soft starters, switchgear, protective relays, neutral grounding resistors, and associated control system components. State and local buyers span water districts, municipal utilities, county governments, school districts, and transit authorities. Water reclamation facilities and municipal water districts appear as repeat buyers—Orange County, Florida (Eastern Water Reclamation Facility electrical upgrades), Eastern Municipal Water District in Riverside County (medium voltage soft starter installation), West Basin Municipal Water District in California (motor control center replacement), and Hillsborough County Water Resources Department (mercury float switches and contact kits) all posted related equipment solicitations in the first half of 2026. School districts and city departments also procure under the code for facility and infrastructure maintenance.

Recent activity concentrates in California, Florida, and the Southwest, with secondary activity in Georgia, Oregon, and North Carolina. Representative recent opportunities include Orange County, Florida's IFB Y26-604 (posted April 21, 2026, due April 30, 2026) for Eastern Water Reclamation Facility electrical and mechanical upgrades encompassing 15 kV switchgear modifications, generator upgrades, neutral grounding resistor replacement, and protective relay installation; Eastern Municipal Water District's RFP (posted April 11, 2026, due May 9, 2026) for medium voltage soft starter procurement, installation, and training at the Auld Road Booster Station; West Basin Municipal Water District's RFB RFBTH0120 (posted April 24, 2026) for motor control center replacement with mandatory pre-bid and on-site job walk; and Hillsborough County Water Resources Department's ITB 26-00138 (posted February 5, 2026, due March 2, 2026) for mercury float switches, estimated contract value $60,000 over two years. The code also captures broader electrical parts and supplies procurement—Northside Independent School District's IFB 2026098 (posted June 8, 2026, due July 1, 2026) for electrical equipment, parts, supplies, rentals, repairs, and services in San Antonio, Texas.