Santech MT0380 Trinary Pressure Switch R-134a A/C System

The Santech MT0380 Trinary Pressure Switch is a critical component for automotive air conditioning systems using R-134a refrigerant. This pressure switch monitors refrigerant pressure levels and provides three-way control functionality to protect the AC compressor and optimize system performance.

Key Features:

• Trinary design provides triple-function pressure monitoring for low pressure cutoff, high pressure cutoff, and cooling fan control
• Engineered for R-134a refrigerant systems with precise pressure calibration
• Direct-fit replacement design for simplified installation
• Durable construction resistant to refrigerant exposure and temperature extremes
• Protects compressor from damage due to improper pressure conditions
• Standard electrical connector for plug-and-play compatibility

This switch prevents compressor operation when refrigerant pressure is too low, protecting against damage from insufficient lubrication. It also prevents operation when pressure is too high, protecting system components from excessive stress. The third function controls the cooling fan to maintain optimal operating temperatures.