Does any body know where to get a new one? If you know, please let me know.:eek:
Terminal Supply Co. has them here:
http://terminalsupplyco.com/Store/Product.aspx?pc=CB3-SM-120
Mention you are with FIRST and you should be able to get a discount.
Good luck!
We had the same problem right before ship our rookie year, so I know just how you feel. 
I can’t remember whether we ordered a new one or got one from the Spare Parts clerk at our regional.
Terminal Supply (http://www.terminalsupply.com) carries the correct breakers. You’ll find them on page 88 of their catalog – part number CB3-SM-120.