Rockwell Automation Allen-Bradley PowerFlex 6000 medium-voltage AC drives

The Allen-Bradley PowerFlex 6000 medium-voltage AC drives, from Rockwell Automation, offer expanded, user-friendly motor control for compressors, pumps and fans in variable and constant torque applications. The product delivers a wide voltage range (2.4 to 11 kV) and provides 100% starting torque, leveraging sensorless vector control.



The drive is easy to commission, use and maintain, with standard faceplates and EtherNet/IP connectivity. It is particularly suitable for heavy industries with high power needs.

With an extended power range, the drive can be used for applications with output-voltage ratings up to 11 kV and motor current ratings up to 680 A, while remaining an air-cooled design. With eco-designed main cooling fans, users in IEC-based markets can meet EC regulation 327 and ErP directive 2009, and avoid the larger footprint of a liquid-cooled drive. Internally powered cooling fans reduce user-supplied control power requirements, as well as equipment and installation costs. A tertiary winding on the isolation transformer provides internal power for the fans.

Output-voltage ratings up to 11 kV are available for Australia and New Zealand. The full range of ratings includes 3.3, 6.6 and 11 kV.

With optional, automatic cell bypass up to 680 A, users can keep their operations running in case of a power cell failure and reduce unplanned downtime. In addition, an uninterruptible power supply helps minimise downtime and mitigate potential machine damage.