Features10 to 1/0 AWG copper aluminum wire size at 60 to 75 deg CEach pole of the circuit breaker will provide inverse time delay overload and instantaneous short circuit protection by means of both thermal and magnetic sensorsThe circuit breaker calibration shall not be affected by environmental changes in relative humidityAll circuit breakers shall be operated by a toggle type handle and multipole circuit breakers shall have an internal common trip mechanismContacts shall be of non-welding silver alloyAll terminals shall be listed for use with copper or aluminum conductorsThe terminals shall meet UL 486B requirements and shall be suitable for use with either 60 or 75 deg C wireBreakers shall be SWD rated and/or HACR rated as required3/4 in per pole