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The Allen-Bradley 150-A54NB is an SMC-2 Smart Motor Controller designed to operate on 400-480V AC with a controller rating of 54 Amps. It features an open enclosure and offers a comprehensive range of starting and stopping modes, including current limit start with selectable kickstart, soft start, full voltage start, and dual ramp start. The controllers pump control option enhances user convenience by simplifying operations, while its innovative features such as soft stop and accu-stop ensure optimized performance. Users can benefit from adjustable parameters like ramp time, which can be set between 0 and 30 seconds, and the soft start option adjustable from 0 to 90% of locked rotor torque, making it versatile for diverse applications.