SOR Controls 54PP-K118-N4-B1A Pressure Switch

SOR Controls 54PP-K118-N4-B1A Pressure Switch is a 54-series, aluminum-housed (B1A) model that provides vacuum-to-pressure switching with an adjustable range of 30 to 0 inHg and an over-range rating of 750 psi. At its core is a force-balanced, piston-actuated mechanism with a diaphragm-sealed sensing element and a static O-ring, a construction geared for reliable cycling across varying pressures and environments. The K118-N4-B1A variant is commonly used in compressor-driven systems and other industrial equipment where precise trip and reset points are required to protect machinery and regulate operation. The 54PP family designation identifies this specific model within SOR’s lineup, pairing robust construction with a compact form factor suitable for integration into control panels or compact equipment enclosures. With its combination of a wide vacuum-to-atmosphere range and a substantial over-range capability, this switch supports applications that demand dependable response to both falling vacuum and rising pressure, helping ensure automatic shutdowns, alerts, or process changes occur at defined thresholds.