The Saginomiya GMV-H604G is a robust high-pressure control switch designed to protect refrigeration and air conditioning systems from overpressure conditions. When the discharge pressure on the high-pressure side exceeds a pre-set value, the switch automatically stops the compressor, preventing potential damage to the system components. This model features a manual reset function, which ensures that a technician must physically attend to the unit to investigate the cause of the high-pressure fault before restarting the system, enhancing safety and operational reliability. Built for durability and precision, the GMV-H604G is suitable for use with a wide range of common fluorinated refrigerants (HCFC, HFC).