HA3000 Power System IPB

This document is an Illustrated Parts Breakdown (IPB) for the Digital Equipment Corporation HA3000 Uninterruptible Power System (UPS), covering 20-80 kVA configurations.

It serves as a comprehensive guide for identifying and locating parts, featuring:

• Detailed instructions on how to use the IPB effectively, explaining its organization based on engineering drawing structure.
• A Major Assembly Locator (first illustration) that indexes all other illustrations.
• Indented Parts Lists that show the breakdown of assemblies, with asterisks indicating the subordination of parts and guiding users to higher-level assemblies or alternative parts.
• Clear explanations of each column in the parts list, including Figure and Item numbers, part Descriptions (with specifications and subordination), Digital Part Numbers, ECO Cut-In information (for changes), "Used On" codes (for option variations), and cross-reference Figure Numbers.
• Numerous illustrated diagrams of the UPS cabinets and their internal components, categorized by kVA capacity (20, 40, 60, 80 kVA).
• An indexing system by both part number and part description for easy reference.

The document aims to help users understand the system's structure, identify necessary components, and find replacement parts. It was first printed on October 4, 1991.