The Allen-Bradley 150-C9NBD is a robust 3-wire, solid-state SMC-3 smart motor controller that supports Delta configurations and is housed in an open-type enclosure. Designed for diverse industrial applications, this 3-phase controller efficiently manages load variations with horsepower capabilities that adjust based on voltage and starting duty, ranging from 0.75 to 5 Hp across various voltage levels. Its extensive protective features include phase reversal, electronic motor overload, and phase imbalance protection, alongside advanced modes like coast-to-rest and soft stop, ensuring reliable motor operation and longevity.