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The 150-B54NBR, part of Rockwell Automations SMC Dialog Plus series, is a robust solid-state controller designed for 3-phase applications with an amperage rating of 54 Amps and a horsepower range of 1 to 40 HP. It operates efficiently at a voltage of 460 Volts AC, with a line input accommodating 200 to 460 Volts AC and frequency support from 50 to 60 Hertz. Equipped with advanced protection features like power loss protection, line fault indication, and phase reversal indicators, this controller ensures optimal performance and reliability, while its digital microprocessor control enhances operational supervision and SCR pulse firing control adaptability.