... 2.rated current:20A 3.rated voltage:220V-240V Pressure switch for air compressorsThis is our new design. ... ) Max. current: 16A 3) Frequency: 50-60Hz 4)Pressure range:3-11Bar 5) Joint screw: NPT1/4" or ... or 1/2” 6) Protection grade: IP44 7) Pressure Setting:3-4.5bar,5-7bar,5-8bar,6-8bar ... ,7-10bar,8-11bar.(Pressure setting according to customers' needs.)nNOVEL DESIGN Certification: ...