The Allen-Bradley 150-SC1NBR SMC-50 Smart Motor Controller is a sophisticated solid-state device from the Bulletin 150 SMC-50 series, optimized for efficient management of 3-phase induction motors. Delivering reliable microcomputer-based motor start functions, it features advanced digital control capabilities with nine selectable start modes, ensuring enhanced motor protection and reduced system maintenance. Boasting an operating current of 210A, suitable for motors rated between 25 to 60HP and line voltage ranges from 200 to 460V AC at 50/60Hz, this controller excels in applications with variable torque demands. It includes an SCR-controlled energy saver operation ideal for lightly loaded motors and integrates features like a 24V DC/AC control circuit, dual programmable relay outputs, and robust environmental tolerances, all housed in a durable construction weighing approximately 105lbs.