20 and CAN/CSA-C22

WARNING: This product can expose you to chemicals including Lead

the SPDT (Single Pole Double Throw) switch design allows the O16-166 to be wired to open or close on pressure rise

this OEM replacement part prevents high-amperage inrush by sequencing resistive loads

the B4022700 is functionally identical to the B4022700B

Johnson Controls P72MA-1 Pressure Control 30067439-890 20 and CAN/CSA-C22The Johnson Controls P72MA 1 is a robust DPST Dual Pressure Control designed for heavy duty commercial refrigeration and HVAC systems. This Two Pole pressure switch provides simultaneous control of high side and low side pressures, making it an essential component for protecting compressors against low suction or excessive discharge pressures. The low pressure side features an adjustable range of 20" Wc to 100 psi with a field settable differential of