Saginomiya FNS-C106X Pressure Control Sensor Switch

The Saginomiya FNS-C106X Pressure Controls Sensor Switch is a narrow-differential, high-sensitivity switch in Saginomiya’s FNS/ANS family that provides reliable pressure-triggered control to protect refrigeration and air-conditioning circuits. Its fixed differential design means the electrical output toggles when the sensed pressure crosses the setpoint and remains stable within the differential window, making it ideal for compressor protection and hydraulic circuit safeguarding in HVAC and industrial equipment. The C106X version covers a setpoint range of roughly -0.06 to 0.60 MPa (-50 cmHg to 6 kgf/cm2), enabling monitoring across low- to mid-range pressures typical in cooling systems. It is rated for fluids in a -20 to 120°C temperature window, while standard ambient operating conditions span -20 to 70°C, and the unit’s enclosure is IP20. The sensor-switch connections use a 1/4" flare port, and the body provides four M4x0.7 threaded mounting holes for secure installation. This model is documented in Saginomiya’s catalogs as part of the FNS lineup and is commonly used to guard refrigeration equipment, air conditioners, and other machinery where precise, compact pressure sensing and switching are required. For installations seeking greater environmental protection, optional drip-proof or waterproof variants exist within the broader FNS/ANS family, though the standard FNS-C106X ships with the IP20 enclosure.