DC1-127D0FB-A6SCE1 refers to an Eaton CL150 Electronic Timer. This timer is used to monitor and control a variety of electrical and machinery applications, such as pumps, motors, conveyors, and compressors. It features a timer range of 0.01 seconds to 999 hours, adjustable time multiplier range of 0.1 to 999, and has a voltage rating of 120/240VAC. It also has screw terminal connections for power and load, and a selectable control output for either positive or negative control.