The Allen-Bradley 150-C43NCD Smart Motor Controller is an advanced solid-state unit within the 150 SMC-3 family, engineered specifically for efficient motor control with an operational current of 43A and accommodating a 200-600V AC 3-phase voltage input at 50-60 Hz. It ensures robust protection through integrated 150A standard RK5 fuses and a Thermal Magnetic Circuit breaker, both designed to handle a 5KA fault condition. This controller features a control circuit that operates on 100-240V AC, an impressive 1500V AC dielectric withstand, and offers meticulous motor over-load protection via built-in internal transformers and thermistors in each phase. With four distinct operational modes, the device provides comprehensive protection against overheating and voltage surges, further enhanced by a DV/DT voltage protection of 1000V/ µs and an impressive impulse voltage capability of 6.0KV. The device operates reliably across a humidity range of 5-95% and temperature limits of 0-50 °C, housed in a compact design weighing just 5 pounds.