These pressure controls are designed for use in a variety of applications involving refrigeration high or low pressure.
Models supplied have a “whole range” design, enabling them to be used with refrigerants R22, R134A, R404A, R410A and all other non-corrosive refrigerants which are within the operating range of the control. 
They may also be used for other high or low pressure applications such as air, water etc. Models which can be used withammonia are included in the program. 
Also models tested and approved to PED 97/23/EC Cat. IV (supersedes DIN and TUV approval) are included in the program.

Model no: P77AAA-9300, P77AAA-9301, P77AAA-9302, P77AAA-9350, P77AAA-9351

58  150x240 p77 Johnson Controls Differential Pressure Switches


  • Generous wiring space
  • Splash-proof enclosure (IP54)
  • SPDT contacts are provided as standard on single pressure controls.
  • Trip-free manual reset)

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