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The Allen Bradley 150-A05NB-8L4-ND Smart Motor Controller (SMC-2) is a sophisticated, solid-state solution designed to optimize the starting and stopping processes of standard three-phase squirrel-cage induction motors. Featuring three operational modes”full voltage start, soft start, and current limit start”with an optional soft stop if an interface module is utilized, it provides enhanced flexibility and control. With seamless integration alongside existing electromechanical motor starters, this controller also offers an energy-saving feature that reduces power consumption during extended or light load phases, in addition to a protective module rated at 460 Volts AC to guard against high voltage transients. Operable as either a standalone motor controller or in series, it ensures easy installation and setup, along with selectable auxiliary contacts for diverse control applications. The interface option provides a control voltage of 100 to 120 Volts and accommodates both 50 and 60 Hertz systems, making the 150-A05NB-8L4-ND ideal for applications demanding precision and reliability.