the B4022700 is functionally identical to the B4022700B

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

and 70/80 series White Rodgers units

As a veteran-grade OEM replacement limit switch

Johnson Controls P72MA-1 Pressure Control 30067439-890 the B4022700 is functionally identicalThe 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