The Allen-Bradley 150-A97NB soft-starter is a robust SMC-2 solid-state motor controller designed for three-phase applications, accommodating input line voltages from 380 to 460V AC with a frequency range of 50 to 60 Hz. Capable of handling up to 97 A, it supports power ratings of 30 HP at 230V AC and 75 HP at 460V AC, offering a maximum kW rating of 63 kW at 500V AC. With dimensions of approximately 23 lbs, this open-type controller operates efficiently with an LED status indicator and advanced fault detection. Configuration is facilitated through DIP switches and a rotary digital switch, while three operational modes—full voltage start, current limit start, and soft start—enhance versatility. Energy efficiency is maximized by an automatic energy-saving feature during light or unloaded motor conditions.