page_title: British Rail Class 321
section_title: Fleet details
hierarchical_section_title: British Rail Class 321 / Fleet details
caption_attribution_description: English: Class 321/322 Northern Diagram 2019
context_page_description: The British Rail Class 321 alternating current electric multiple units were built by British Rail Engineering Limited's York Works in three batches between 1988 and 1991. The design was successful and led to the development of the similar Class 320 and Class 322.
  Today the class is operated by Greater Anglia. Some have been converted to Class 320 and are operated by Abellio ScotRail.
caption: Greater Anglia (ex Northern Trains) Class 321
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