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1391B-AA45 Allen-Bradley
Original price
$2,531.23
-
Original price
$7,492.50
Original price
$2,531.23
$2,531.23
-
$7,492.50
Current price
$2,531.23
Trusted By
Product Details
Specifications provided for reference. Verify critical details against official manufacturer documentation before installation.
Product Overview
The 1391B-AA45 is an Allen-Bradley Bulletin 1391 series, single-axis AC servo controller that uses pulse-width-modulated control. It accepts three-phase AC input (50/60 Hz) and outputs controlled variable-frequency voltage via an integrated 300 V DC bus and shunt regulator. It delivers up to 15 kW continuous (30 kW peak) for precise control of torque or speed in closed-loop systems, particularly when paired with 1326 AC servo motors.
Best Suited For
- Single-axis torque/speed control with 1326 series servo motors
- Panel-mounted compact servo controller installations
- Environments with high ambient humidity (up to 95% non-condensing)
- Retrofit or replacement applications in legacy 1391 system installations
- Applications requiring integrated protection (circuit breaker, thermal drift control)
Continuous current (RMS)
45 A
Peak current (RMS)
90 A
Continuous output power
15 kW
Nominal bus voltage
300 V DC
Operating temperature range
32 to 140 °F
Technical Specifications
I/O & Electrical
Continuous current (RMS)
45 A
Peak current (RMS)
90 A
Nominal bus output voltage
300 V DC
Input circuit breaker rating
38 A RMS
Circuit breaker interrupt rating
1300 A
Communication & Power
Input voltage
Three-phase AC (line) - typical 230 V AC 50/60 Hz (±10%/-15%)
Power dissipation
104 W @ 20%, 208 W @ 40%, 312 W @ 60%, 416 W @ 80%, 520 W @ 100% output
Integral fan output
50 CFM
Static gain
1.5× rated motor I/RPM
Physical & Environmental
Weight
40 lbs (18.14 kg)
Dimensions
19.0 × 6.2 × 10.64 in
Operating temperature
32 to 140 °F (0 to 60 °C)
Humidity (non-condensing)
5 to 95%
Altitude
Up to 3300 ft (~1000 m) without derating
