These BR and BD series miniature circuit breakers plug into panelboards and load centers. They interrupt currents when faults are detected in the circuit. These breakers connect to the power supply through bus bars, which eliminates the need to pigtail wires and helps organize the panelboard or load center. 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