... 4.OEM JRS6 Series electric motor thermal protection IntroductionJR36 series thermal relay is suitable for AC 50Hz or 60Hz, main ... voltage up to 660V, 160A, used as protecting AC three-phase motor against overload. and has the functions of phase lost ... and exporting low voltage electricity, including ac contactor, air pressure switch, magnetic starter, motor protector, starter delta starter, oil level ...