The Allen-Bradley 150-F25NBRB controller is a motor controller device from the Allen-Bradley SMC-Flex controller series. Its purpose is to control industrial motors efficiently and because it starts, stops, accelerates, and decelerates the motors smoothly without subjecting them to sudden stops or power surges, because these things can damage motors. The 150-F25NBRB controller has a control voltage rating of 24 Volts AC/DC and a line voltage range of 200 to 480 Volts AC. Its current rating is 25 Amps. Its approximate dimensions are 12.6 x 5.9 x 8 inches, and its approximate shipping weight is 12.6 pounds. The 150-F25NBRB controller can operate at a temperature range between 23 and 104 degrees Fahrenheit when it is installed in an enclosure and the operating temperature range is between 23 and 122 degrees Fahrenheit when the controller is not in an enclosure.

The Allen-Bradley 150-F25NBRB SMC-Flex controller does not need an enclosure in non-hazardous locations, but an enclosure is recommended in environments where there are high levels of liquids and dust or where there are corrosive chemicals. The 150-F25NBRB controller can operate at an altitude of up to 6560 feet above sea level at full power. It can operate at higher altitudes, but it must be derated. This controller can tolerate a relative humidity level between 5 and 95% without condensation in operation and in storage. It has a modular design with a heatsink thyristor. The 150-F25NBRB controller can communicate through its DPI port and it supports multiple starting and stopping modes such as the soft start, the current limit start, and the soft stop.