The 150-S135NBD is a sophisticated three-phase motor controller with an integrated microprocessor, designed for versatile applications by offering a 135 Amps internal bypass and accommodating line voltages between 200 and 480 Volts AC at frequencies of 50 to 60 Hz. Its sensorless linear speed acceleration and deceleration minimize mechanical stress, ensuring consistent motor performance during start-up and stopping phases, complemented by a dual ramp start feature allowing profile customization with adjustable ramp times and torque levels. Adhering to UL, CSA, EN/IEC certifications and carrying a CE mark for global compliance, this controller supports operation within 0 to 50 degrees Celsius up to 2000 meters altitude, guarded against electromechanical noise, and is equipped with advanced diagnostics to alert to overload, voltage faults, and other critical conditions.