Barksdale C9612-3 Switch 320734-701 75 HP unit is the

75 HP unit is the primary updated replacement for the ZR57K3-TF5-930 and ZR57K3E-TF5-950

using a genuine York heating element ensures the physical fit and electrical draw match the factory specifications of your York HVAC units

The most common failure points are voltage surges or high static pressure (undersized ductwork)

or Miller air handler and furnace systems

Barksdale C9612-3 Switch 320734-701 75 HP unit is theThe Barksdale C9612 3 Switch is a high performance sealed piston pressure switch designed for demanding industrial HVACR and hydraulic applications. Engineered for systems requiring rapid cycling and extreme durability, this visual indicating switch operates within an adjustable range of 250 to 3000 PSI. It features a robust anodized aluminum enclosure with a NEMA 3 rating, ensuring reliability in weather exposed environments. The internal SPDT snap