Overview
The Allen-Bradley 1326AB-B530F-21 is a brushless AC servo motor engineered for high-performance motion control in industrial automation systems. Part of the Bulletin 1326 Torque Plus Series, this low-inertia servo motor combines compact design with reliable torque output, making it ideal for precision positioning, packaging machinery, and material handling equipment where dynamic response and repeatability are critical.
Key Features
- Low-inertia design using 3-inch ferrite magnet stack for rapid acceleration and response
- Compact 149 mm (5.87-inch) frame diameter for space-constrained installations
- Rated output of 4.3 kilowatts at 3200 RPM for high-speed servo applications
- AC permanent magnet motor with brushless construction for extended service life
- Resolver-based feedback for closed-loop servo control integration
- IEC metric flange with keyway shaft for standard coupling compatibility
Technical Specifications
- Motor Type: Brushless AC permanent magnet servo motor
- Rated Speed: 3200 RPM
- Output Power: 4.3 kW
- Torque Output: 18 N·m nominal
- Frame Size: 149 mm diameter (5.87 inches)
- Voltage: 380–460 VAC (three-phase)
- Current Rating: 7.5–9.5 amperes at rated load
- Feedback: Resolver-based with standard resolver connector
- Flange: IEC metric with keyway shaft coupling
- Maximum Ambient Temperature: 40 °C
- Weight: Approximately 76 lbs (34.5 kg)
- Series: Bulletin 1326 Torque Plus
Typical Applications
- Packaging machinery and automatic case formers requiring rapid acceleration
- Conveyor and material handling drive motors with precision speed control
- Print and label machinery for register control and web tension
- Rotary indexing tables and turrets in manufacturing systems
- Machine tool spindle drives where low inertia improves cycle time
- Automation equipment integrated with Rockwell CompactLogix or ControlLogix platforms
Compatibility & Replacements
Compatible With
- Allen-Bradley/Rockwell Automation servo drives (1326 series compatible models)
- Bulletin 1326 servo drive controllers and amplifiers
- ControlLogix and CompactLogix PLC platforms with analog servo output modules
- Third-party servo drives supporting 3-phase 380–460 VAC resolver feedback motors
- Industrial motion control systems using standard IEC metric flange motors
Replaces / Drop-In Replacement For
- Allen-Bradley 1326AB-B530E-21 (earlier variant with 3000 RPM rating—verify drive compatibility)
- Reliance Electric 1326AB-B530F-21 (equivalent model under prior Reliance Electric branding)
- Other 1326AB low-inertia servo motors in 149 mm frame with similar torque/speed profiles
Works With
- Rockwell Automation RSLogix 5000 / Studio 5000 servo axis configuration
- CompactLogix analog servo modules (16-bit 4–20 mA command output)
- 1326-type servo drives and amplifiers with resolver feedback conditioning
- Standard industrial AC power supplies (380–460 VAC, three-phase, 50/60 Hz)
- NEMA and IEC motor couplings with keyway shaft interface
