Square D PowerPact H, J and L-frame circuit breakers are designed to protect electrical systems from damage caused by overloads and short circuits Molded case circuit breakers are available with either thermal-magnetic or Micrologic electronic trip units. L-frame breakers are performed only with Micrologic electronic units The NSX cord is used for connection micrologic trip unit to the Modbus interface of front dispay. This NSX cord is equipped with RJ45 connector and perfomed as a cable of 3 meters (9.84 ft) length and could be used for U≤480V .