Danfoss MP55 oil differential pressure switch, genuine OEM code number 060B029991. Protects a refrigeration or air-conditioning compressor against loss of lubricating oil pressure by monitoring the differential between oil-pump pressure and crankcase (suction) pressure and cutting out when it falls below the set value. Adjustable differential 0.3 bar–4.5 bar via the setting disc, factory set 0.65 bar, with readable internal scale; automatic reset. SPDT contact system, 1/4 in flare (DIN 8906) pressure connection, screwed cable entry (Pg 13.5), IP20 enclosure. Max. working pressure 17 bar. Suitable for HCFC and non-flammable HFC refrigerants. EAN 5702424499617.