Product Overview
The Allen-Bradley 20F11NC085JA0NNNNN is a variable frequency AC drive from the PowerFlex 753 series, designed for precise motor speed and torque control in three-phase systems. With a power rating of 45 kW under normal duty and a rated current of 85 Amps, this drive meets demanding industrial requirements. Its IP20/IP00 enclosure (NEMA/UL Type Open) provides basic protection while allowing flexibility for panel integration. The built-in air-cooling system ensures effective thermal management during sustained operation, and embedded I/O simplifies connectivity without extra modules.
Technical Specifications Breakdown
Key parameters for the 20F11NC085JA0NNNNN are listed below for quick reference:
| Feature | Specification |
|---|---|
| Manufacturer | Allen Bradley |
| Product Type | Variable Frequency AC Drive |
| Product Line | PowerFlex 753 |
| Part Number | 20F11NC085JA0NNNNN |
| Power Rating (Normal Duty) | 45 kW |
| Rated Current | 85 Amps |
| Voltage Class | 400V AC/540V DC |
| Phase | 3-phase input |
| Enclosure Type | IP20/IP00, NEMA/UL Type Open |
| Cooling Method | Air-cooled |
| Weight | 70.00 lbs (31.75 kg) |
| Frame Size | Frame 5 |
| Option Slots | 3 available (feedback, safety, communication) |
| Dynamic Braking Transistor | Included |
| CM Jumper | Installed |
| Human Interface Module (HIM) | Not included (plastic cover installed) |
Industry Applications
The 45 kW power rating and 85 Amps current capacity make it suitable for medium-duty machinery. The three option slots allow integration of feedback devices for closed-loop control, safety modules for risk reduction, or communication modules for network connectivity. The dynamic braking transistor enhances deceleration control, beneficial for high-inertia loads.
Installation & Setup Guidance
Mount the drive in a clean, dry environment with adequate clearance for airflow. The IP20/IP00 enclosure requires installation within a panel or cabinet to maintain protection. Ensure the three-phase input voltage matches the 400V AC/540V DC voltage class. The pre-installed CM jumper simplifies grounding setup. Use the three option slots to add feedback, safety, or communication modules as needed. The plastic cover protects the HIM port; a separate HIM can be purchased if local control is required.
Maintenance & Reliability
Periodically inspect the air-cooling system for dust accumulation and ensure ventilation paths remain clear. Check all electrical connections for tightness. The dynamic braking transistor and CM jumper require no routine maintenance but should be verified during system checks. The drive's robust design supports long service life in typical industrial environments.
Compatibility & Integration
The PowerFlex 753 series supports various communication protocols via option modules. The three slots accept feedback devices (e.g., encoders), safety options (e.g., safe torque off), or communication modules (e.g., EtherNet/IP, ControlNet). Embedded I/O provides basic digital and analog inputs/outputs for straightforward control without external hardware.
Selection Guide & Purchasing Advice
When selecting this drive, confirm that the 45 kW normal duty power and 85 Amps current meet your motor requirements. Verify the three-phase input voltage matches your facility supply. For applications needing local operator interface, order a separate HIM module. AutoDCSTech offers this Allen-Bradley 20F11NC085JA0NNNNN drive with expert support to ensure correct integration. Please verify current lifecycle status and availability with AutoDCSTech before ordering.
Availability & Condition at AutoDCSTech
| Part Number | 20F11NC085JA0NNNNN |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
