The Allen-Bradley 150-A09NB-8B4-ND SMC-2 smart motor controller is a compact and versatile solution for starting three-phase squirrel-cage induction motors. Designed to function in three operational modes—soft start, full voltage start, and current limit start—it supports a line voltage range of 380 to 480 volts at both 50 and 60 Hertz. Rated at 9 amps, this controller offers a flexible power range, handling from 2 horsepower at 200 volts to 7.5 horsepower at 575 volts, with maximum power ratings up to 5.5 kW. Its capabilities are further enhanced with controller and series controller modes, featuring an optional plug-in interface module for control by external devices, ease of installation requiring no additional control wiring, and an energy-saving feature that optimizes power usage. A soft stop option helps prevent load spillage, and optional protective modules safeguard against line surges, ensuring robust performance and reliability.