Eaton universal rotary is suitable for use with type 1 or 12 enclosure types. All rotary handle mechanisms include a handle "lock-off" to prevent turning the breaker on while in the OFF position and indicate on/OFF/tripped/reset positions. The universal rotary has the added feature of international markings for on (I) and off (O). The universal rotary is made of molded material. The universal rotary mechanisms for EG, JG and LG frame MCCBs can be operated by hand with the door open or "locked-off" to prevent operation with the door open.