PRESSURE SWITCH SPDT Form C Contact Configuration, Piston-Actuated Heavy-Duty Pressure Sensing Mechanism, Tri-Point Series Architecture, 15A 125/250VAC Electrical Threshold, Rugged Die-Cast Aluminum Enclosure, -20°C to +60°C Industrial Operational Window, Screw Terminal Interface | High-reliability industrial process control pressure switch manufactured by ASCO (Automatic Switch Company) featuring an adjustable operating range with micro-fine calibrated differential dials and premium silver-alloy contact blocks, explicitly engineered to isolate high-pressure process fluid paths, resist severe system line vibration loops, and execute positive electrical command triggers to safely govern downstream hydraulic fluid pumps or industrial air compressor networks | Industry Exact Equivalents: ASCO A-238714, ASCO Tri-Point A238714, Emerson A-238714 | Industry Functional Cross-References: Square D 9012GAW5, Honeywell Micro Switch 21EN1-6, United Electric H100-190 | Military Specification National Stock Number (NSN): 5930-01-238-7140