UFGS 26 29 23 Adjustable Speed Drive (ASD) Systems Under 600 Volts  

History: Below is a listing of the Revisions and Changes made to this UFGS.

KEY PREPARING ACTIVITY (PA) A Army N Navy F Air Force S NASA
ACTION N New R Revision C Change D Deletion
Release PA Action Change # Nature of Change or Revision
May-2021 N C 1

Changes made to address various CCRs: added "IEC 61000-3-12" to References and paragraph Power Line Surge Protection (1.3.2.1); replaced reference UL 508C with "UL 61800-5-1"; ASD was changed to "110" percent in list item d. and "IEC" was added to list item r. in article (2.1) ADJUSTABLE SPEED DRIVES ; and article (2.2) ENCLOSURES was updated.

Feb-2020 N R

Complete review and update, including Section Title change (was VARIABLE FREQUENCY DRIVE SYSTEMS UNDER 600 VOLTS)

Aug-2018 N C 1

Sustainability updates required to coordinate with the Federal Codes and DoD policies and procedures.

Apr-2006 N R

To conform with CSI MasterFormat, replacing without change UFGS-16261 (August 2004)