Allen Bradley 1326AB-B420H-21

The Allen-Bradley 1326AB-B420H-21 is a high-performance motor that is part of the 1326AB Torque Plus AC Servo Motors series. It has a 3-phase sinusoidal wound stator field that is used for smooth operation at low speeds. It is housed in an IP 65 enclosure and it is intended for use with the Allen-Bradley Ultra3000 Digital Servo Drives, Kinetix 6000 Servo Drives, and the Allen-Bradley 1394 Motion Control System. The voltage rating for this motor is 460 Volts AC and it has a speed rating of 6000 RPM. The Allen-Bradley 1326AB Torque Plus Motors, including the 1326AB-B420H-21 servo motor, possess a specially engineered enclosure that helps increase the continuous torque ratings and reduce the motor size.

The 1326AB-B420H-21 servo motor and other servo motors in the same series are brushless, synchronous servo motors that are built to meet various requirements of high-performance motion systems. For improved heat transfer, these servo motors also feature an extruded aluminum housing. They can be vertically installed at any angle with the shaft up or down. There are multiple feedback options available for these servo motors: absolute multi-turn high-resolution feedback, absolute single-turn high-resolution feedback, and resolver feedback. They are typically used for many applications including automotive, metal forming, converting, machine tool, material handling, and packaging applications. They can reach speeds of up to 7250 RPM and they have a continuous torque capability from 2.3 to 53 N-m. The motor rated torque for the 1326AB-B420H-21 servo motor is 5.1 N-m at 2.2 kilowatts of output while its rotor inertia rating is at 0.0008 kg-m2. The maximum ambient temperature for this motor is 40 degrees Celsius (without derating) and it has a thermal time constant of 33 minutes. This motor has the 21 IEC metric flange with a keyway and it weighs 28 pounds (12.7 kilograms). It also has UL listed insulation.