The Cutler-Hammer Intelligent Technologies (IT.) electro-mechanical contactor from Eaton's electrical business consists of an IT. electro-mechanical contact block and IT. electro-mechanical coil controller as a Full Voltage Non-reversing (FVNR) or Full Voltage Reversing (FVR) device. Only the A-Frame (27 mm) and F-Frame (140 mm) contactors have internal factory assembled coil controllers.