MP-54 and MP-55

MP-54 and MP-55

MP 54 and MP 55 oil differential pressure controls are used as safety switches to protect refrigeration compressors against low lubricating oil pressure.
If the oil pressure fails the oil differential pressure control stops the compressor after a certain time period.
MP 54 and 55 are used in refrigerating systems using fluorinated refrigerants.
MP 55A is used in refrigerating systems with R 717 (NH3). MP 55A can also be used in systems with fluorinated refrigerant.
MP 54 has a fixed differential pressure setting. It also incorporates a thermal time relay with a fixed release time setting.
MP 55 and 55A have adjustable differential pressure and are available both with and without thermal time relay.
Introduction
Wide regulating range Can be used for deep freeze, refrigeration and air conditioning plant Can be used for all normal fluorinated refrigerants Electrical connection at the front of the unit
Features Suitable for both alternating and direct current
Screwed cable entry for cables from 6 to 14 mm diameter
Small contact differential
Meets the requirements of EN 60947