The Allen-Bradley 150-F251NBDB SMC-Flex Smart Controller is designed with a front keypad and a backlit LCD for intuitive operation, offering seamless power and control wiring options. It supports a wide range of starting and stopping modes including soft start and soft stop, while featuring extensive protection and diagnostics capabilities such as power loss and overvoltage handling. With advanced metering functionalities that encompass amp to megawatt-hour measurements, and optional features like pump and braking control, this versatile controller is suited for various applications, maintaining optimal performance within a temperature range of -5 to 50 °C open, and at altitudes up to 2000 meters, all while operating in humid, non-condensing environments.