SINGLE PRESSURE , IP54

The P77 series pressure controls may be used for control functions or limit functions , depending on model number . All models are provided with alarm contacts . All standard models have phosphor bronze bellows and brass pressure connections . Models for use with ammonia are provided with stainless steel bellows and connectors . Devices conforming to PED 2014 / 68 / EU Cat . IV ( HP models ) have the fail-safe function with double bellows .

Their IP54 classification means that these pressure controls are suitable for almost all applications .

FEATURES

• Generous wiring space

• Splash-proof enclosure ( IP54 )

• SPDT contacts are provided as standard on single pressure controls .

• Trip-free manual reset

• High refrigerant pressure . Suitable for R410A and CO2 subcritical applications .

• Wetted materials approved for use with standard and ( mild ) flammable A2L / A3 refrigerants

APPLICATION

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 , R290 and CO ₂ sub-critical 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 with ammonia are included in the program . Also models tested and approved to PED 2014 / 68 / EU Cat . IV ( supersedes DIN and TUV approval ) are included in the program .

DIMENSIONS ( in mm )

88 53

80

European Products Catalogue 2021