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- Allen Bradley
- 20BD125A3ANNANB0
- PowerFlex 700 AC Drive
- USA
- 689.6 x 308.9 x 275.4 mm
- 37.19 kg
- Xiamen, China
- New & In Stock
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Product Overview
The Allen Bradley 20BD125A3ANNANB0 PowerFlex 700 AC Drive is a high-performance Variable Frequency Drive (VFD) designed to deliver accurate speed regulation, superior torque control, and energy-efficient operation for industrial automation systems. As part of the trusted PowerFlex 700 family, this AC drive combines advanced vector control technology with comprehensive motor protection, programmable operating parameters, and flexible communication capabilities to support demanding industrial applications.
The 20BD125A3ANNANB0 converts fixed-frequency three-phase AC power into adjustable voltage and frequency output, enabling connected motors to operate at optimal speeds based on process requirements. This intelligent motor control improves production efficiency, minimizes mechanical stress, reduces energy consumption, and extends the service life of motors and driven equipment.
Designed for continuous-duty industrial operation, the drive features advanced diagnostics, real-time monitoring, fault detection, and simplified commissioning. Its rugged enclosure and reliable cooling system make it suitable for long-term operation in manufacturing plants, processing facilities, and heavy industrial environments.
With dimensions of 689.6 × 308.9 × 275.4 mm and an approximate weight of 37.19 kg, the drive is ideal for panel-mounted installations inside industrial control cabinets.
Typical applications include conveyor systems, pumps, compressors, fans, mixers, extruders, packaging machinery, HVAC equipment, mining systems, water treatment facilities, and general industrial automation.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Allen Bradley |
| Product Series | PowerFlex 700 |
| Model | 20BD125A3ANNANB0 |
| Product Type | AC Drive / Variable Frequency Drive |
| Primary Function | Variable Speed Motor Control |
| Motor Control Method | Sensorless Vector Control / Vector Control |
| Input Supply | Three-Phase AC |
| Output Frequency | Adjustable Variable Frequency |
| Enclosure Rating | IP20 / NEMA Type 1 |
| Cooling Method | Forced Air Cooling |
| Mounting Method | Panel / Cabinet Mount |
| Protection Features | Overload, Overvoltage, Undervoltage, Overtemperature, Short Circuit Protection |
| Communication | Industrial Communication Options |
| Dimensions | 689.6 × 308.9 × 275.4 mm |
| Weight | Approximately 37.19 kg |
Function and Working Principle
The 20BD125A3ANNANB0 controls motor speed by converting fixed-frequency AC input power into variable voltage and frequency output through advanced power conversion technology.
Typical Power Flow
Three-Phase AC Supply
↓
Rectifier
↓
DC Bus
↓
IGBT Inverter
↓
20BD125A3ANNANB0 PowerFlex 700 AC Drive
↓
Three-Phase AC Motor
↓
Industrial Equipment
During operation, the drive continuously adjusts motor output according to application demands.
Key functions include:
- Variable speed regulation
- Precise torque control
- Smooth acceleration and deceleration
- Soft motor starting and stopping
- Energy-saving operation
- PID process control
- Motor overload protection
- Fault diagnostics
- Real-time monitoring
- Industrial network integration
The advanced control algorithm delivers stable motor performance while reducing electrical and mechanical stress.
Role in Industrial Control Systems
Within industrial automation systems, the 20BD125A3ANNANB0 serves as the intelligent interface between the PLC and the driven motor.
Typical automation architecture:
Industrial PLC
↓
20BD125A3ANNANB0 PowerFlex 700 AC Drive
↓
Three-Phase AC Motor
↓
Mechanical Equipment
↓
Production Process
The drive receives control commands from the PLC and precisely regulates motor speed while providing operating status and diagnostic feedback.
Industrial Applications
Manufacturing Automation
Common applications include:
- Automated production lines
- Assembly equipment
- Robotic systems
- CNC machinery
- Packaging machines
Conveyor Systems
Suitable for:
- Material handling
- Distribution centers
- Warehouse automation
- Logistics equipment
- Sorting systems
Pumps and Water Treatment
Widely used for:
- Water supply systems
- Wastewater treatment
- Irrigation equipment
- Chemical dosing
- Booster pump stations
Fans and HVAC Systems
Ideal for:
- Air handling units
- Ventilation systems
- Cooling towers
- Industrial exhaust systems
- Building climate control
Mining and Heavy Industry
Frequently installed in:
- Crushers
- Conveyors
- Material processing equipment
- Ventilation systems
- Heavy-duty machinery
Food and Beverage Processing
Typical applications include:
- Mixing systems
- Packaging equipment
- Bottling lines
- Conveyor systems
- Automated processing machinery
Installation and System Integration
Before installation, engineers should verify:
- Input voltage compatibility
- Motor nameplate ratings
- Cabinet ventilation
- Protective grounding
- Power cable sizing
- Control wiring
- Communication configuration
- Environmental conditions
- Protective devices
- Commissioning procedures
Recommended Installation Procedure
- Disconnect all power sources.
- Mount the drive securely inside the control cabinet.
- Connect the incoming three-phase power supply.
- Connect the motor output terminals.
- Install protective grounding.
- Complete control wiring.
- Configure communication settings.
- Verify electrical connections.
- Restore power.
- Enter motor parameters.
- Configure drive settings.
- Test motor rotation.
- Verify protective functions.
- Perform commissioning tests.
- Save configuration data.
Proper installation ensures reliable motor operation and maximizes drive performance.
Compatible System Components
| Component | Function |
|---|---|
| Allen Bradley PLC | Automation controller |
| 20BD125A3ANNANB0 | Variable frequency drive |
| Three-Phase AC Motor | Mechanical power |
| HMI Panel | Operator interface |
| Circuit Breaker | Electrical protection |
| Contactor | Power isolation |
| EMC Filter | Electromagnetic compatibility |
| Braking Resistor | Dynamic braking |
| Encoder | Speed feedback |
| Industrial Ethernet Network | Communication |
| Industrial Sensors | Process monitoring |
| Industrial Power Supply | System power |
Recommended Alternative Models
| Model | Product Type | Typical Application |
|---|---|---|
| 20BD125A3ANNANB0 | PowerFlex 700 AC Drive | Industrial motor control |
| 20BD125A3ANNACC1 | PowerFlex 700 AC Drive | Encoder feedback applications |
| 20BD125A3ANNAEC0 | PowerFlex 700 AC Drive | Advanced automation systems |
| 20BD096A3ANNAND0 | PowerFlex 700 AC Drive | Medium-power motor control |
| 20BC140A3ANNAND0 | PowerFlex 700 AC Drive | Heavy-duty industrial applications |
Key Advantages
- PowerFlex 700 high-performance platform
- Advanced vector motor control
- Excellent speed and torque accuracy
- Smooth acceleration and deceleration
- High operating efficiency
- Intelligent diagnostics and monitoring
- Comprehensive motor protection
- Flexible communication capability
- Easy commissioning and maintenance
- Rugged industrial construction
- Dimensions 689.6 × 308.9 × 275.4 mm
- Approximate weight 37.19 kg
Technical FAQs
What is the Allen Bradley 20BD125A3ANNANB0?
The 20BD125A3ANNANB0 is a PowerFlex 700 AC Drive designed to provide precise variable-speed control for industrial three-phase AC motors.
What is its primary function?
Its primary function is to regulate motor speed and torque by converting fixed-frequency AC input power into adjustable voltage and frequency output.
What are the physical dimensions?
The drive measures 689.6 × 308.9 × 275.4 mm.
What is the approximate weight?
The drive weighs approximately 37.19 kg.
Which motors are compatible?
It is designed for compatible three-phase AC induction motors used in manufacturing, conveying, pumping, ventilation, and other industrial automation systems.
Which industries commonly use this drive?
The drive is widely used in manufacturing, mining, water treatment, food processing, HVAC, logistics, chemical processing, power generation, and general industrial automation.
Does the drive improve energy efficiency?
Yes. By matching motor speed to process demand, the drive reduces energy consumption while improving system productivity.
Does the drive include protection functions?
Yes. It provides overload, overvoltage, undervoltage, overtemperature, and short-circuit protection together with advanced fault diagnostics.
Can the drive integrate with PLC systems?
Yes. The PowerFlex 700 platform supports integration with Allen Bradley PLCs and industrial automation networks for centralized control and monitoring.
Where is this drive typically installed?
It is typically installed inside industrial control cabinets driving pumps, fans, conveyors, compressors, mixers, packaging equipment, and other motor-driven machinery.
Conclusion
The Allen Bradley 20BD125A3ANNANB0 PowerFlex 700 AC Drive is a robust and intelligent motor control solution for demanding industrial applications. Its advanced vector control technology, comprehensive protection features, integrated diagnostics, and flexible communication capabilities provide accurate speed control, improved energy efficiency, and reliable long-term performance.
With dimensions of 689.6 × 308.9 × 275.4 mm and an approximate weight of 37.19 kg, the 20BD125A3ANNANB0 is ideal for cabinet-mounted installations where dependable motor control and continuous industrial operation are essential.