SOR Static O-Ring Pressure Switch 3NN-K45-S1-C4C

The SOR Static O-Ring Pressure Switch model 3NN-K45-S1-C4C is a robust, industrial-grade device designed for high-pressure monitoring and control in demanding environments. Manufactured by SOR Inc., this switch features an adjustable pressure range of 1000-7000 PSI, making it ideal for applications in oil and gas, petrochemical, and hydraulic systems where precise pressure detection is critical. It utilizes a piston-actuated mechanism with a static O-ring seal for leak-proof performance and durability under extreme conditions. Key benefits include high accuracy, repeatability, and resistance to vibration and shock, outperforming many diaphragm-based switches in high-pressure scenarios. Drawbacks may include higher cost compared to basic models and the need for periodic calibration. The switch offers single-pole double-throw (SPDT) contacts for versatile integration into control systems. Its explosion-proof housing ensures safety in hazardous locations, with certifications for Class I, Div 1 environments. Compared to similar products like those from Ashcroft or United Electric, the SOR model excels in overrange protection up to 6000 PSI and proof pressure up to 10000 PSI, providing superior reliability for critical shutdown or alarm functions. This unit appears used but in good condition, with no visible damage, suitable for refurbishment or direct reuse in industrial setups.