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Allen-Bradley AC Servo controllers 1391 series

Allen-Bradley AC Servo controllers 1391 series

  • Product Item : 1391 series
  • Product Brand : Allen-Bradley
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Allen-Bradley AC Servo controllers 1391 series


The Allen-Bradley AC Servo 1391 series are AC servo controllers. To keep the UL listing, their power must come from an Allen-Bradley 1391 Isolation Transformer. Only trained users should handle the planning and implementation of this controller system. Static control procedures should be followed to reduce component damage.


These are PWM servo controllers, dedicated for single-AC-axis, and usually used with computer-aided closed-loop positioning systems to control machine parts' position and motion. They're designed for panel mounting inside enclosures and have an internal fan for air circulation.


The controllers convert 50-60 Hertz 3-phase input voltage to variable voltage with controlled amplitude, phase, and frequency values. The output controls the speed and/or torque of a 1326 AC servo motor. Available in 15 Amps, 22.5 Amps, and 45 Amps RMS ratings (with the same package size), their corresponding output power ratings are 5 kilowatts, 7.5 kilowatts, and 15 kilowatts.


The rated ambient temperature is 0-60 degrees Celsius, and the storage temperature is 0 - 65 degrees Celsius. The output of the cooling fan is 50 CFM. The controllers must be mounted inside proper enclosures to protect them from contaminants like oil, dust, and coolants. 

1391-150ET

The Allen-Bradley 1391-150ET Isolation Transformer has a 15 kVA Rating and a 240/380/415/480V AC Primary Voltage.

1391-AA15

The Allen-Bradley 1391-AA15 AC Servo Controller has a 17A RMS Input Circuit Breaker Rating and a 1300A Circuit Breaker Interrupt Rating.

1391-AA22

The Allen-Bradley 1391-AA22 AC Servo Controller has a 26A RMS Input Circuit Breaker Rating and a 1300A Circuit Breaker Interrupt Rating.

1391-AA45

The Allen-Bradley 1391-AA45 AC Servo Controller has a 38A RMS Input Circuit Breaker Rating and a 1300A Circuit Breaker Interrupt Rating.

1391-DES15-DI-AQB

The Allen-Bradley 1391-DES15-DI-AQB Digital AC Servo Drive has a 30A Peak Current (RMS) and a 5 kW Continuous Power Output.

1391-DES15-DI-AQB-A

The Allen-Bradley 1391-DES15-DI-AQB-A Digital AC Servo Drive has a 30A Peak Current (RMS) and a 5 kW Continuous Power Output.

1391-DES22-DI

The Allen-Bradley 1391-DES22-DI Digital AC Servo Drive has a 45A Peak Current (RMS) and a 7.5 kW Continuous Power Output.

1391-DES22-DI-AQB

The Allen-Bradley 1391-DES22-DI-AQB Digital AC Servo Drive has a 45A Peak Current (RMS) and a 7.5 kW Continuous Power Output.

1391-DES45-DI

The Allen-Bradley 1391-DES45-DI Digital AC Servo Drive has a 90A Peak Current (RMS) and a 15 kW Continuous Power Output.

1391-DES45-DI-AQB

The Allen-Bradley 1391-DES45-DI-AQB Digital AC Servo Drive has a 90A Peak Current (RMS) and a 15 kW Continuous Power Output.

1391-DES45-DI-AQB-A

The Allen-Bradley 1391-DES45-DI-AQB-A Digital AC Servo Drive has a 90A Peak Current (RMS) and a 15 kW Continuous Power Output.

1391-T015DT

The Allen-Bradley 1391-T015DT Isolation Transformer has a 1.5 kVA Rating and a 240/480V AC Primary Voltage.

1391-T035DT

The Allen-Bradley 1391-T035DT Isolation Transformer has a 3.5 kVA Rating and a 240/480V AC Primary Voltage.

1391-T035ET

The Allen-Bradley 1391-T035ET Isolation Transformer has a 3.5 kVA Rating and a 240/380/415/480V AC Primary Voltage.

1391-T035NT

The Allen-Bradley 1391-T035NT Isolation Transformer has a 3.5 kVA Rating and a 208/230/460/575V AC Primary Voltage.

1391-T050DT

The Allen-Bradley 1391-T050DT Isolation Transformer has a 5 kVA Rating and a 240/480V AC Primary Voltage.

1391-T050ET

The Allen-Bradley 1391-T050ET Isolation Transformer has a 5 kVA Rating and a 240/380/415/480V AC Primary Voltage.

1391-T100DT

The Allen-Bradley 1391-T100DT Isolation Transformer has a 10 kVA Rating and a 240/480V AC Primary Voltage.

1391-T100ET

The Allen-Bradley 1391-T100ET Isolation Transformer has a 10 kVA Rating and a 240/380/415/480V AC Primary Voltage.

1391-T125DT

The Allen-Bradley 1391-T125DT Isolation Transformer has a 12.5 kVA Rating and a 240/480V AC Primary Voltage.

1391-T150DT

The Allen-Bradley 1391-T150DT Isolation Transformer has a 15 kVA Rating and a 240/480V AC Primary Voltage.

1391B-AA15

The Allen-Bradley 1391B-AA15 AC Servo Controller has a 17A RMS Input Circuit Breaker Rating and a 1300A Circuit Breaker Interrupt Rating.

1391B-AA15-A12

The Allen-Bradley 1391B-AA15-A12 AC Servo Controller has a 17A RMS Input Circuit Breaker Rating and a 1300A Circuit Breaker Interrupt Rating.

1391B-AA22

The Allen-Bradley 1391B-AA22 AC Servo Controller has a 26A RMS Input Circuit Breaker Rating and a 1300A Circuit Breaker Interrupt Rating.

1391B-AA45

The Allen-Bradley 1391B-AA45 AC Servo Controller has a 38A RMS Input Circuit Breaker Rating and a 1300A Circuit Breaker Interrupt Rating.

1391B-AA45-A06

The Allen-Bradley 1391B-AA45-A06 AC Servo Controller has a 38A RMS Input Circuit Breaker Rating and a 1300A Circuit Breaker Interrupt Rating.

1391B-AA45N

The Allen-Bradley 1391B-AA45N AC Servo Controller has a 38A RMS Input Circuit Breaker Rating and a 1300A Circuit Breaker Interrupt Rating.

1391B-ESAA15

The Allen-Bradley 1391B-ESAA15 AC Servo Controller has a 10 kW Peak Power Output and a 17A RMS Input Circuit Breaker Rating.

1391B-ESAA15-AQB

The Allen-Bradley 1391B-ESAA15-AQB AC Servo Controller has a 10 kW Peak Power Output and a 17A RMS Input Circuit Breaker Rating.

1391B-ESAA22

The Allen-Bradley 1391B-ESAA22 AC Servo Controller has a 15 kW Peak Power Output and a 26A RMS Input Circuit Breaker Rating.

1391B-ESAA22-AQB

The Allen-Bradley 1391B-ESAA22-AQB AC Servo Controller has a 15 kW Peak Power Output and a 26A RMS Input Circuit Breaker Rating.

1391B-ESAA45

The Allen-Bradley 1391B-ESAA45 AC Servo Controller has a 30 kW Peak Power Output and a 38A RMS Input Circuit Breaker Rating.

1391B-ESAA45-AQB

The Allen-Bradley 1391B-ESAA45-AQB AC Servo Controller has a 30 kW Peak Power Output and a 38A RMS Input Circuit Breaker Rating.

1391B-ESAZ45-AQB

AB-SERVO CONTROL 45 AMP AC Servo Controller

1391B-EST45

The Allen-Bradley 1391B-EST45 AC Servo Controller has a 45 kW Peak Power Output and a 38A RMS Input Circuit Breaker Rating.