The Allen-Bradley 150-C251NBR is a high-performance 3-wire solid-state smart motor controller designed to efficiently operate 3-phase motors in various applications including pumps, lifts, chillers, mixers, conveyors, and fans. This open-type motor controller supports a rated voltage of 200-460V AC and a control voltage of 24V AC/DC, with a current rating of 251A, and functions within the frequency range of 50-60 Hz. Notable features include a rotary switch for fast motor FLA setup, DIP switches, a dual-function reset and test button, and an LED display for easy monitoring. The controller offers comprehensive protection with electronic motor overload, phase reversal, over-temperature, and scr/run bypass checks. Additionally, the 150-C251NBR model supports five operation modes—current limit start, soft start, kick start, soft stop, and coast-to-rest—enhancing its versatility for dynamic and demanding industrial environments. Delta compatibility further enhances the integrative potential of this smart motor controller.
