Square D NSB 8501HXO-1200 Relays

Square D NSB 8501HXO-1200 Relays are NEMA-style, Type X control relays in the 8501 family, built for rugged machine-tool and industrial control applications. The 8501XO1200 series variants commonly offer 12 normally open contacts and a 10 A rating, with coil voltages available in 24 VAC or 110/120 VAC depending on the exact model, and mounting options that include panel-mount or surface-mount configurations. These relays are designed for reliable, multi-circuit switching in control panels, supporting modular installation for sequencing drives, motors, feeders, and tooling circuits in industrial equipment. Typical deployments include remote control of machine-tool operations and other heavy-duty control tasks where a compact, robust relay with multiple N.O. contacts is beneficial.