Industrial CW-2075-52 Pressure Switch Unloader

The CW-2075-52 is a single‑port, adjustable pressure switch with an integral unloader, designed to regulate air‑compressor pressure and vent the line to unload the pump at cut‑out to ease starting and protect motor wear. This model is commonly identified as Furnas CW‑2075‑52 (and is sometimes cataloged under Square D branding), with listings showing CW207552 as an alternative reference. The unloader feature provides a dedicated outlet for depressurizing the discharge line when the switch opens, enabling the compressor to start with minimal load and then re‑pressurize once the system reaches the set pressure. Widely used in industrial and workshop air‑compression setups, the CW‑2075‑52 is referenced as a replacement part for older equipment and is sold by multiple suppliers under the same model designation, reflecting its role as a reliable, uncomplicated control device for on/off pressure regulation with unloading capability.