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Danfoss MP 55 Differential Pressure Switch

KSh 17331

In stock

Danfoss MP 55 Differential Pressure Switch is used in refrigerant systems with R717 and additionally systems with HCFC and non-flammable HFC refrigerants. MP 55 Pressure Switch has a fixed differential pressure setting. This Danfoss MP55 additionally incorporates a thermal time relay with a set release time setting.

Applications: HVAC, Industrial Applications, etc.


Danfoss MP 55 Differential Pressure Switch is used as a safety switch to protect refrigeration compressors against low lubricating oil pressure. If the oil pressure fails, This differential pressure switch stops the compressor after a certain period. This Pressure Switch has adjustable differential pressure and is available both with and without a thermal time relay.

Features of Danfoss MP55 Pressure Switch:

  • This Danfoss MP 55 Differential Pressure Switch has a Wide regulating range
  • This Danfoss Pressure Switch is mainly used for deep freeze, refrigeration, and air conditioning plant
  • Can be utilized for non-flammable HFC and HCFC refrigerants
  • having an Electrical connection at the front of the unit
  • mostly used for both alternating and direct current (AC and DC)
  • 6 –14 mm diameter Screwed cable entry for cables
  • Small contact differential

Additional information



Model No



230 V or 115 V AC or DC

Permissible voltage variation

-15 – 10%

Max. working pressure

PS/MWP = 17 bar

Max. test pressure

Max. test pressure

Cable Entry

Pg 13.5

Cable Diameter

6 – 14 mm

Max. Bellows Temperature

100 °C

Switch differential max. ∆p [bar]



IP20 to EN 60529 / IEC 60529

Tightening Torque

max. 1.2 Nm

Rated Impulse Voltage

4 kV


250 V

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Danfoss MP 55 Differential Pressure Switch

Danfoss MP 55 Differential Pressure Switch

KSh 17331

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