I am up-grading my 100A service with a 200A one. My main panel is not near the meter so I have a Siemens 200A service disconnect where the power enters the basement. There are 4 "blades"(right name?) in the disconnect box, two for each hot line. What troubles me is that the 200A Siemens breaker that was sold with the disconnect (looks like four regular breakers tied together so they all switch off at once) makes contact with only two of the four blades, so that all the current must go through only two blades when it seems a better design would be to have all the current go through all four blades, less current per blade.
Do I have any real concerns here, is this a bad design, is this a standard practice?
Thank you for any help.