The 8310-845 is now a combination "Time Delay Relay / Door Sequence" module.
In 2010 the separate 8310-845 "Time Delay" module and 8310-849 “Door Sequencer” module were combined into a "common" module . The 8310-849 Door Sequence part# was discontinued, and the 8310-845 part# is now used for the new combined “Time Delay Relay / Door Sequence” module that performs both functions.
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