J-frame Eaton molded case circuit breakers are rated up to 250A and 600VAC and interrupt excessive current flows to protect devices from electrical damage. They're typically used with Eaton, Allen-Bradley, and Rockwell Automation motor control centers. Their current-carrying parts, mechanisms, and trip devices are contained in a molded case. 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