... HDPIN-33 These insulators belongs to the Series 3: Pin type insulator:15kV,24kV,33KVMain Technical ParametersSpecificationHDPIN-15HDPIN-24HDPIN-33Rated Voltage ... : 12~220kV (available end fitting: socket, ball, clevis, tongue, Y clevis, eye) Series 2: ANSI class DS series:15kV,25kV ... ,28kV,35kV Series 3: Pin type insulator:15kV,24kV,33kV Series 4: Station Post Insulator: ...