Finding Transformer by Markings

The content in this post is only a suggestion, please confirm compatibility with your application before purchasing any parts.

Maybe a niche search, but this could be useful. Recently helped someone track down a replacement transformer for a unit with the following markings on the label:
B40-02-GE-001
PRI; COMP 240V
-24V, 40VA
40 24 F 1F
TB402424-B21C93

The top line stands out as the obvious part number, but it’s a dead end. The mark that corresponds to a searchable part is the line at the bottom. It wasn’t possible for me to find out what the “C93” calls out but the “TB402424-B21” corresponds to a Honeywell part number AT72D1691 aka AT72D1691/U.

Due to the difficulty of finding primary sources for the information, I can’t unfortunately call this confirmed with 100% certainty, but I am fairly confident that this is the correct part. We don’t stock it but it appears to be available from various suppliers online. Please use good judgement when sourcing parts from any third-party retailers.