Industrial 8501HO80 Relays

Industrial 8501HO80 Relays are rugged Square D NEMA‑style power relays engineered for reliable control of single‑phase loads in demanding environments. They belong to Square D’s 8501 family, featuring a modular, open‑frame construction with replaceable contact cartridges and plug‑in configurations that simplify maintenance and customization. The line offers a range of contact arrangements and coil options, with many 8501 relays rated up to 600 V and 10 A, making them suitable for resistive, motor‑control, and heater applications in industrial equipment. Certifications and standards are part of the product line, with Square D relays bearing UL listing, CSA and CE certification, and RoHS compliance where applicable. Typical applications include material handling, processing lines, lighting control, HVAC/R, and other industrial control tasks, where long mechanical life and rapid cycling are valued. The 8501 family is designed to be compatible with a broad socket and accessory ecosystem, enabling straightforward field upgrades and maintenance without major rewiring.