These breakers were also manufactured or sold by the original Cuter-Hammer Company back then. Single pole 20 Amp 120V. Highest amperage made was 20A. Only 15A and 30A in single pole form. Remember Bob Villa from This Old House? That's where you might find these breakers.
Y Breaker Outlet inspects all of our products prior fulfilling your order. New XO120's come with a 1 year warranty. All Re-Certified XO120's come with a 2 year warranty.