Allen-Bradley 22C-D170A103 PowerFlex 400 AC Drive – 90 kW / 125 HP Fan & Pump VFD, 480 VAC, 170 A

Allen-Bradley 22C-D170A103 PowerFlex 400 AC Drive – 90 kW / 125 HP Fan & Pump VFD, 480 VAC, 170 A

Product Overview

The Allen-Bradley 22C-D170A103​ is a high-power variable frequency drive (VFD) belonging to Rockwell Automation’s PowerFlex 400 series, specifically engineered for variable-torque fan and pump applications in commercial and industrial environments. Rated at 90 kW (125 HP) with a continuous output current of 170 A, the Allen-Bradley 22C-D170A103​ accepts a 480 VAC three-phase supply (operating range 342–528 VAC) and delivers precise, energy-saving speed control for large centrifugal fans, cooling tower fans, chilled water pumps, condenser pumps, and wastewater treatment blowers. As a fan-and-pump-optimized drive, the Allen-Bradley 22C-D170A103​ eliminates the oversizing and energy waste associated with traditional damper- or throttling-valve-based flow control, reducing motor power consumption by aligning rotational speed with real-time process demand.

Housed in a Frame F enclosure with IP30 (NEMA 1 / UL Type 1) protection, the Allen-Bradley 22C-D170A103​ is designed for panel mounting inside industrial control cabinets with an ambient temperature rating up to 45 °C. The drive integrates a fixed alphanumeric keypad with a 2-line, 16-character LCD display and LED status indicators, enabling on-site configuration without additional hardware. Native control methods include V/Hz control, slip compensation, and a built-in process PID loop that automatically adjusts output frequency to maintain a measured process variable at its set point. With a power factor of 0.98 and an overall energy efficiency that meets or exceeds IEC 61800-9-2 IE2 requirements, the Allen-Bradley 22C-D170A103​ significantly lowers operating costs across its entire service life.

Communication and integration capabilities are equally impressive: the Allen-Bradley 22C-D170A103​ comes standard with an internal RS-485 port and embedded support for Modbus RTU, Metasys N2, Apogee P1-FLN, and Common Industrial Protocol (CIP). Optional Drive Serial Interface (DSI) modules extend connectivity to DeviceNet, EtherNet/IP, ControlNet, PROFIBUS DP, BACnet, LonWorks, and Bluetooth networks. Premier Integration with Rockwell’s Logix control platform simplifies parameter and tag programming, shortening engineering and commissioning time. Whether deployed as a standalone drive or as part of a packaged HVAC or water-management solution, the ​ delivers the reliability, application intelligence, and lifecycle support that modern process facilities demand.

Allen-Bradley 22C-D170A103 PowerFlex 400 AC Drive – 90 kW / 125 HP Fan & Pump VFD, 480 VAC, 170 A

Technical Specifications

Parameter Value
Product Model 22C-D170A103
Manufacturer Rockwell Automation (Allen-Bradley)
Product Type AC Variable Frequency Drive (Fan & Pump)
Power Rating 90 kW / 125 HP
Input Voltage 480 VAC, 3-phase (342–528 VAC operating range)
Input/Output Current 170 A
Output Frequency 0–400 Hz
Frame Size F
Enclosure Rating IP30 (NEMA 1 / UL Type 1)
Brake IGBT Not included
Power Factor 0.98
Control Methods V/Hz, Slip Compensation, PID Control
Communication Internal RS-485; embedded Modbus RTU, Metasys N2, P1-FLN; CIP
Embedded I/O 7 digital inputs, 2 analog inputs, 2 analog outputs, 8 relay outputs
User Interface Integral keypad with 2-line, 16-character LCD; LED indicators
Operating Temperature -10 °C to +45 °C
Storage Temperature -40 °C to +85 °C
Overload Capacity 110% for 1 minute
Recommended Fuse 250 A (UL Class J, CC, T or BS88)
Power Dissipation 2617 W (open type)
Certifications UL508C, cUL, CE, C-Tick, RoHS, IEC 61800-5-1 / 61800-3
Standard Warranty 1 Year

 

Main Features and Advantages

Fan-and-pump application intelligence: The Allen-Bradley 22C-D170A103​ incorporates selectable fan/pump curves that provide optimized voltage patterns for centrifugal loads, eliminating the need for external relay logic. Three programmable skip frequencies and bands prevent the drive from running at resonant mechanical speeds, protecting fans and pumps from premature bearing and impeller failure.

Integrated PID and process control: A built-in PID controller in the Allen-Bradley 22C-D170A103​ automatically adjusts output frequency to hold a process variable—such as pressure, flow, or temperature—at a user-defined set point. This enables standalone closed-loop control without requiring a separate PLC, reducing system complexity and cost.

Energy-saving sleep/wake function: When system demand falls below a preset threshold, the Allen-Bradley 22C-D170A103​ automatically cycles the motor off and resumes operation when demand rises again. Combined with a high 0.98 power factor, this yields substantial energy savings in variable-demand applications such as HVAC cooling and water supply.

Fire-safety and building integration: Dedicated purge and damper digital inputs on the Allen-Bradley 22C-D170A103​ enable direct connection to fire and life-safety systems. The purge input forces the drive to run at a programmable speed regardless of stop commands from communication ports, while the damper input blocks drive output until the damper reaches the desired position—even with a valid run command.

Flying start and Hand/Off/Auto: The Allen-Bradley 22C-D170A103​ supports flying start capability for smooth motor re-acceleration without full deceleration, plus configurable Hand/Off/Auto function buttons on the integral keypad for localized manual override. This proves invaluable in unattended plant rooms and remote pumping stations.

Rich communication without extra hardware: Embedded Modbus RTU, Metasys N2, and P1-FLN protocols are parameter-selectable on the ​ and require no additional modules. For broader network integration, optional DSI adapters add DeviceNet, EtherNet/IP, ControlNet, PROFIBUS, BACnet, LonWorks, or Bluetooth connectivity.

Comprehensive motor protection: The ​ provides drive overload protection, electronic motor overload protection (Class 10), bus overvoltage/undervoltage trips, ground fault and short-circuit protection, and 200% hardware overcurrent limiting with 300% instantaneous fault tripping. This multi-layered protection scheme maximizes uptime and safeguards connected equipment.

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