1326AB-C3E-11-2287B

The 1326AB-C3E-11-2287B motor is an Allen-Bradley 1326AB series brushless AC synchronous motor. The speed rating of the motor is 3000 RPM, the frame diameter is 194 millimeters (7.63 inches), and the stack length is 2. For mounting of the motor, an inch combination face/flange with a keyway is provided. An Allen-Bradley amplifier with the catalog number 1391B-AA45 can be used with the motor for increasing the rotor speed. The standard shaft speed rating for the 1326AB-C3E-11-2287B motor is 3000 RPM. With amplification, the maximum shaft speed increases to 4000 RPM. Additional performance specifications include a continuous stall torque of 35 N-m (at 104 degrees Fahrenheit ambient), a rated output of 7.5 kilowatts, a peak stall torque of 64.1 N-m, an electrical time constant of 13 milliseconds, a continuous stall current of 49.1 Amps, and a peak stall current of 90 Amps.

The mechanical specifications for the 1326AB-C3E-11-2287B motor include a polar moment of inertia for the rotor of 0.024 kg-m2, a motor weight of 62.6 kilograms, and a balance of 0.0127 millimeters. The 1326AB-C3E-11-2287B motor can be mounted in the vertical orientation with the shaft at any desired angle. The use of the motor at ambient temperatures in excess of 104 degrees Fahrenheit is not recommended by Allen-Bradley. The insulation class of the motor insulation is Class H. The rated thermal time constant, which is the time taken for motor winding to attain 63% of the continuous temperature rise with constant watts loss, is 86 minutes. At 77 degrees Fahrenheit, the rated torque constant for the 1326AB-C3E-11-2287B motor winding is 0.84 N-m/A, the resistance rating of the motor terminals is 0.059 ohms, and the winding inductance is 1.0 Millihenry.