C260 2-Pole 60-Amp Circuit Breaker C260 Two-Pole 120/240V, with a maximum voltage rating of 240 V. Standard interrupting rating is 10 kA at 240 V Type C3/4-Inch Plug-On Molded Case Circuit Breaker is the standard size. Normal tripping requires two 3/4" (19.1 mm) spaces. The thermal magnetic trip curve avoids nuisance tripping on mild overloads while reacting almost instantaneously to severe short circuit conditions. High quality plastic shell material Our plastic case material is made of high density corrosion resistant material. It has the advantages of insulation safety, fire resistance. Greatly prolongs the service life of the molded case circuit breaker.