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- Allen Bradley
- 20BC205A3ANNANC0
- PowerFlex 700 AC Drive
- USA
- 976.3 x 403.9 x 275.5 mm
- 71.44 kg
- Xiamen, China
- New & In Stock
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We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
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Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
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We provide 7*24 hours service to our customers. We will be there whenever you need us.
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All our products are priced very favorably because we have our own warehouse and supply.
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Product Overview
The Allen Bradley 20BC205A3ANNANC0 PowerFlex 700 AC Drive is a high-performance Variable Frequency Drive (VFD) engineered by Rockwell Automation for precision motor speed control in demanding industrial automation environments. As a member of the proven PowerFlex 700 series, this AC drive combines advanced vector control technology, intelligent diagnostics, flexible programming capabilities, and comprehensive protection functions to maximize equipment performance, improve production efficiency, and reduce operating costs.
Designed for medium- and high-power industrial motor applications, the 20BC205A3ANNANC0 delivers exceptional speed regulation, smooth acceleration and deceleration, high starting torque, and stable operation under varying load conditions. By continuously adjusting output voltage and frequency, the drive optimizes motor efficiency while minimizing mechanical wear on motors, gearboxes, couplings, bearings, and other transmission components.
This configuration is supplied without an internal communication module, allowing users to install optional communication interfaces that best match their automation architecture. The drive integrates seamlessly with Allen-Bradley PLCs, PanelView HMIs, distributed I/O systems, SCADA platforms, and industrial Ethernet networks through optional communication modules, making it suitable for both standalone machines and plant-wide automation systems.
With dimensions of 976.3 × 403.9 × 275.5 mm and an approximate weight of 71.44 kg, the 20BC205A3ANNANC0 is intended for cabinet-mounted industrial installations where continuous-duty performance, operational reliability, and simplified maintenance are essential.
Typical applications include conveyor systems, centrifugal pumps, compressors, industrial fans, mixers, extruders, crushers, packaging machinery, material handling equipment, HVAC systems, mining machinery, water treatment plants, steel processing lines, chemical production facilities, and automated manufacturing systems.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Allen Bradley (Rockwell Automation) |
| Model | 20BC205A3ANNANC0 |
| Product Series | PowerFlex 700 |
| Product Type | AC Drive / Variable Frequency Drive |
| Input Supply | Three-Phase AC |
| Rated Output Current | 205 A |
| Motor Compatibility | Three-Phase AC Induction Motors |
| Motor Control Method | Sensorless Vector / Vector Control |
| Output Frequency | Adjustable Variable Frequency |
| Cooling Method | Forced Air Cooling |
| Protection Rating | IP20 |
| Mounting Method | Cabinet / Panel Mount |
| Communication | No Internal Communication Module (Expandable) |
| Operator Interface | LCD Display with Full Numeric Keypad |
| Protection Functions | Overload, Overcurrent, Overvoltage, Undervoltage, Overtemperature, Short Circuit |
| Dimensions | 976.3 × 403.9 × 275.5 mm |
| Weight | Approximately 71.44 kg |
| Typical Application | Industrial Variable Speed Motor Control |
Function and Working Principle
The Allen Bradley 20BC205A3ANNANC0 converts fixed-frequency three-phase AC input power into adjustable voltage and frequency output, enabling precise regulation of motor speed and torque for industrial automation applications.
Typical Power Conversion Process
Three-Phase AC Power Supply
↓
Rectifier
↓
DC Bus
↓
IGBT PWM Inverter
↓
↓
Three-Phase AC Motor
↓
Industrial Equipment
During operation, the drive continuously monitors motor current, voltage, speed, and load conditions. Advanced vector control algorithms dynamically adjust output parameters to optimize efficiency, maintain stable torque, and ensure smooth machine operation.
Primary functions include:
- Precision motor speed regulation
- High-performance vector control
- High starting torque
- Adjustable acceleration and deceleration
- Soft start and controlled stop
- Energy optimization
- Automatic fault monitoring
- Real-time diagnostics
- Comprehensive motor protection
- Expandable industrial communication
Role in Industrial Automation Systems
Within industrial automation systems, the 20BC205A3ANNANC0 serves as the intelligent interface between automation controllers and high-power electric motors.
Its primary responsibilities include:
- Motor speed regulation
- Torque optimization
- Energy management
- Process control
- Equipment protection
- Fault diagnostics
- PLC communication through optional network modules
- Continuous system monitoring
Its modular architecture allows users to select communication options that best match their control system requirements.
Industrial Applications
Manufacturing Automation
Suitable for:
- Automated assembly lines
- Conveyor systems
- Packaging machinery
- Material handling equipment
- Robotic production cells
Water and Wastewater Treatment
Widely used in:
- Centrifugal pumps
- Booster stations
- Filtration systems
- Aeration equipment
- Municipal treatment plants
Mining and Heavy Industry
Ideal for:
- Crushers
- Grinding mills
- Bulk material conveyors
- Screening systems
- Mineral processing facilities
Oil, Gas and Chemical Processing
Frequently applied to:
- Process pumps
- Compressors
- Industrial agitators
- Mixing equipment
- Continuous production systems
HVAC Systems
Commonly installed in:
- Industrial ventilation systems
- Cooling towers
- Chillers
- Air handling units
- Building automation systems
Food and Beverage Processing
Suitable for:
- Filling machinery
- Packaging equipment
- Conveyor lines
- Industrial mixers
- Automated production systems
Installation and System Integration
Proper installation is essential for reliable long-term performance.
Before installation, engineers should verify:
- Input voltage compatibility
- Motor nameplate ratings
- Cabinet ventilation
- Protective grounding
- Cable sizing
- Environmental conditions
- Control wiring
- Optional communication module selection
- Maintenance clearance
Recommended Installation Procedure
- Disconnect all electrical power.
- Mount the drive securely inside the control cabinet.
- Connect the three-phase input power supply.
- Connect motor output terminals.
- Install protective grounding.
- Complete all control wiring.
- Install and configure optional communication modules if required.
- Verify all electrical connections.
- Restore power.
- Enter motor parameters.
- Configure acceleration and deceleration settings.
- Set protection parameters.
- Verify motor rotation.
- Test PLC and HMI communication.
- Complete commissioning and operational testing.
Routine preventive maintenance helps maximize equipment reliability and extend service life.
Compatible System Components
| Component | Function |
|---|---|
| ControlLogix PLC | Central automation controller |
| CompactLogix PLC | Machine control |
| PowerFlex 700 AC Drive | Variable frequency motor control |
| PanelView HMI | Operator interface |
| EtherNet/IP or DeviceNet Communication Module | Optional industrial networking |
| Three-Phase AC Motor | Mechanical power output |
| Circuit Breaker | Electrical protection |
| Line Reactor | Harmonic mitigation |
| Dynamic Braking Resistor | Braking energy dissipation |
| Industrial Sensors | Process monitoring |
Recommended Alternative Models
| Model | Product Type | Typical Application |
|---|---|---|
| 20BC205A3ANNANC0 | PowerFlex 700 AC Drive | Standard high-power industrial automation |
| 20BC205A3ANNADC0 | PowerFlex 700 AC Drive | DeviceNet communication |
| 20BC205A3ANNAEC0 | PowerFlex 700 AC Drive | EtherNet/IP communication |
| 20BC205A0ANNAND0 | PowerFlex 700 AC Drive | Standard heavy-duty motor control |
| PowerFlex 755 Series | Variable Frequency Drive | Advanced connected automation |
Key Advantages
- Proven PowerFlex 700 industrial platform
- Advanced sensorless vector control
- Excellent low-speed torque performance
- Smooth acceleration and deceleration
- Modular communication architecture
- Comprehensive motor protection
- Intelligent diagnostics and fault monitoring
- High operating efficiency
- Reliable continuous-duty performance
- Easy integration with Rockwell Automation systems
- Cabinet-mounted industrial design
- Dimensions 976.3 × 403.9 × 275.5 mm
- Approximate weight 71.44 kg
Technical FAQs
What is the Allen Bradley 20BC205A3ANNANC0?
The 20BC205A3ANNANC0 is a PowerFlex 700 Variable Frequency Drive designed for precise speed and torque control of three-phase AC induction motors used in industrial automation.
What is the primary function of this AC drive?
Its primary function is to convert fixed-frequency AC input power into adjustable voltage and frequency output, enabling accurate motor speed regulation while improving energy efficiency and protecting connected equipment.
Does this model include an internal communication module?
No. This configuration is supplied without an internal communication module, allowing optional communication interfaces to be installed according to application requirements.
What are the physical dimensions?
The drive measures 976.3 × 403.9 × 275.5 mm.
What is the approximate weight?
The unit weighs approximately 71.44 kg.
Which industries commonly use this drive?
It is widely applied in manufacturing, mining, water treatment, HVAC, chemical processing, food and beverage production, steel manufacturing, and other industrial automation sectors.
What protection features are included?
The drive provides overload, overcurrent, overvoltage, undervoltage, overheating, and short-circuit protection for safe and reliable motor operation.
Can the drive integrate with Allen-Bradley PLC systems?
Yes. By installing compatible communication modules, the drive integrates seamlessly with Allen-Bradley PLCs, HMIs, SCADA systems, and industrial networks.
Where should the drive be installed?
It should be mounted inside a properly ventilated industrial control cabinet with adequate grounding, cooling clearance, and convenient maintenance access.
Why is preventive maintenance important?
Routine inspection of cooling fans, ventilation paths, electrical terminals, optional communication modules, and operating parameters helps maximize reliability, reduce downtime, improve energy efficiency, and extend the operational life of the drive.
Conclusion
The Allen Bradley 20BC205A3ANNANC0 PowerFlex 700 AC Drive is a dependable industrial variable frequency drive engineered for demanding motor control applications. Featuring advanced vector control, intelligent diagnostics, modular communication flexibility, and comprehensive protection functions, it delivers precise speed regulation, stable torque performance, and reliable long-term operation.
With dimensions of 976.3 × 403.9 × 275.5 mm and an approximate weight of 71.44 kg, the 20BC205A3ANNANC0 is ideally suited for cabinet-mounted installations across manufacturing facilities, process industries, mining operations, water treatment plants, and other industrial automation environments. When integrated with compatible PLCs, HMIs, optional communication modules, AC motors, and electrical protection devices, it provides outstanding productivity, simplified maintenance, and optimized energy efficiency.