I bought a very old house and have difficulty finding a replacement circuit breaker. The control panel is labeled as Cutler Hammer. The closest circuit breaker I can find locally is CH130 (1 pole, 30A), shown at the top of http://home.comcast.net/~cfjwang/CH-Breakers.jpg . The bottom part is the one I am trying to replace. It has a notch on one side. There is metal bar inside the control panel that prevents the CH130 from being plugged in, while the notch on the old circuit breaker allows for the insertion. (The metal bar is shown in the lower middle part of http://home.comcast.net/~cfjwang/Bar.jpg ).
Can anyone help me identify what type of circuit breaker this is and where I can buy these?