This Cutler-Hammer M22-D-S pushbutton offers reliable momentary action for your control panel needs. Featuring a flush black bezel and a non-illuminated design, it's built for durability and clear operation. This component is part of the M22 series, known for its robust construction..The Eaton M22-D-S is a non-illuminated, momentary action pushbutton with a black, flush bezel. It is part of the M22 series and is designed for 22mm mounting.