UNSPSC 39122313: Trip free relay

A relay that trips the circuit breaker upon command for tripping even during input manipulation of circuit breaker as well as deters input action even if input commend is given continually.

UNSPSC 39122313 Trip free relay, a Commodity code, names electrical protection devices that state and local governments procure for infrastructure upgrades and routine equipment replenishment at water districts, utilities, airports, schools, and transit authorities. Recent solicitations show state and local buyers purchasing trip-free relays as components within larger electrical system replacements, control panel fabrications, and motor control center upgrades rather than as standalone line items. The code captures protective relay hardware integrated into switchgear assemblies, soft-starter installations, PLC and SCADA control systems, and emergency generator interconnection work across water treatment facilities, wastewater reclamation plants, pump stations, and airport infrastructure. Issuing bodies include municipal water districts, county water resources departments, independent school districts, city public works and transit authorities, and regional utilities. Recent procurement activity spans California, Florida, Georgia, Oregon, Minnesota, Texas, and Arizona, with water utilities and municipal infrastructure agencies driving the majority of visibility.

Representative recent opportunities illustrate the integration of trip-free relays within larger electrical projects rather than discrete purchases. Orange County, Florida issued IFB Y26-604 on April 21, 2026 (due April 30, 2026) for Eastern Water Reclamation Facility electrical and mechanical upgrades, including 15KV switchgear modifications and protective relay replacement with Schweitzer microprocessor-based units; West Basin Municipal Water District in California posted RFB RFBTH0120 on April 24, 2026 (due March 31, 2026) for motor control center replacement at Torrance Refinery Water Reclamation Plant with associated grounding and testing; and Eastern Municipal Water District in Riverside County solicited RFP RFPAR3928 on April 11, 2026 (due May 9, 2026) for medium voltage soft starter installation and startup at Auld Road Booster Station with integration into existing control relay and pressure sensor systems. School districts and city procurement offices source electrical parts and supplies through broader category contracts—Northside Independent School District (San Antonio, Texas) issued IFB2026098 on June 8, 2026 for electrical equipment, parts, supplies, and services with response due July 1, 2026, and the City of Phoenix established a multi-year electrical parts and supplies contract (IFB 26-FMD-012, due July 9, 2025) requiring vendors to stock components from 97 manufacturers. Trip-free relay specification and integration remain embedded in larger control system and switchgear modernization initiatives where protective device selection is driven by system voltage, fault current ratings, and automation architecture requirements.