The breaker pictured in your hand appears to be the correct one. There is a link to the an Amazon listing for the breaker in the referenced Thread. Post #30 has a link to a self resetting one.
Here is a link to a manual reset breaker (they are available lots of places maybe including your local Napa store (?)).
https://www.amazon.com/Bussmann-BP-C.../dp/B001PYL1VM