I was in the process of connecting a Reliance generator trow over switch , although the job was completed , I was trying to shut off power to the entire house by opening the main breaker but would not open . THe load center is an old Cutler Hammer ( 1988-92_ model ) and although Iwas able to operate and shut down individual breaker , I was concern that I could not close the main .Are these main breaker like that or should I get an electrician to replace the main breaker ?
Raul