Auxiliary Switches (AX) General PurposeAuxiliary Switches (AX) Heavy DutyAlarm Switches (AL) General PurposeAlarm Switches (AL) Heavy DutyShunt Trips (SHT)Undervoltage Trips (UVT)Extension Bars (FB)Rear Connections (RC) for E/S 630A FrameRear Connections (RC) for H/L 400A FrameFixed Part of Plug-in MCCB (PM)Plug-in Conversion for E/S 630A Frame