Allen-Bradley 154-A11NB 11A 3-Phase Contactor The Allen-Bradley 154-A11NB is a Starting Torque Controller (STC) designed to enhance the start-up performance of both single-phase and three-phase AC motors. By mitigating mechanical stresses and reducing vibration-related downtime, this controller ensures smoother motor initiations. Key Features Voltage and Frequency: Operates within a voltage range of 380–480 VAC at 50/60 Hz. Current and Power Ratings: Supports a continuous current of 11 Amperes and accommodates motors up to 7.5 HP (4 kW). Adjustable Settings: Features selectable initial torque settings ranging from 10% to 80% of locked rotor torque and adjustable start times between 0.1 to 4.5 seconds, allowing for tailored motor acceleration. Construction: Built with high-temperature thermoplastic power poles and anodized aluminum components, ensuring durability and reliable performance. Protection: Equipped with an RC Snubber network for transient protection and provides overload protection through the motor starter. Certifications: Complies with CE, CSA, and UL standards, affirming its quality and safety. Applications The 154-A11NB is suitable for a variety of industrial applications, including: Conveyors Cranes Pumps Fans Mixers Grinders Elevators Its design and features make it an effective solution for reducing mechanical stress during motor start-up, thereby enhancing the longevity and reliability of motor-driven systems. Additional Information Brand: Allen-Bradley Product Type: Definite Purpose Contactor Horsepower: 7.5 HP Current Rating: 11 A