These Eaton / Cutler Hammer HFD 65kCircuit Breakers are part of the Series C, F-Frame type circuit breakers. Eaton / Cutler Hammer panelboards type PRL3 and type PRL4 as well as POW-R-LINE C switchboards use these breakers as branch devices. HFD 65k breakers are commonly available in 1P, 2P and 3P configurations. Agency advantages supply the following brands: ①Allen-Bradley( Rockwell Automation)Series ②Square D(Schneider Electric) Series ③Eaton - Cutler Hammer (Westinghouse )Series ④SIEMENS PLC Series,Siemens CNC system ⑤Eaton moller Series