Electronic pressure switch SPE-PM-S-3S

differentialSPDTterminal block

Power 100 ~ 220VAC 3ch Digital Pressure Switch External Sensor Structure(4-20mA) 1ch RS-485 Communication(Isolated) 2ch 4-20mA Transmission output This product is a digitalized pressure monitoring solution designed to replace conventional mechanical pressure switches and gauges in various refrigeration and air conditioning systems. It offers enhanced functionality and operational convenience. Multi-Channel Pressure Support: The device supports three pressure inputs: high pressure, low pressure, and hydraulic pressure. Advanced Control Features: The unit provides pressure-based band control and PID control functions, enabling precise regulation of variable-capacity compressors and inverter-driven outdoor unit fans. Leak Prevention Design: With its sensor-separable configuration, the product eliminates leakage risks commonly associated with high-pressure hoses, ensuring safe and reliable operation. Isolated Communication Interface: Built-in high-reliability isolated communication enables real-time monitoring of sensor readings and various operational parameters for improved system management. External Signal Output: The device supports external transmission of the measured pressure values via a standard 4–20 mA output signal, allowing easy integration with external monitoring or control systems.