You have to determine the panel design of the customer's existing board since there are two designs for the 45 and 60 way boards.

The very old 45 and 60 way boards had very thin top and bottom panels:

DBF45

DBF60

The new DBF45 and DBF60 have thicker panels on top and bottom:

Old board door assembly part number:
DBF45 --> PDLDBF45ASSY
DBF60--> PDLDBF60ASSY

https://www.pdl.co.nz/products/circuit-protection/superboard-series/door-assembly-45-way-surface-mount-light-grey-pdldbf45assy?itemno=PDLDBF45ASSY

https://www.pdl.co.nz/products/circuit-protection/superboard-series/door-assembly-60-way-surface-mount-light-grey-pdldbf60assy?itemno=PDLDBF60ASSY

New board door assembly part number:
DBF45--> PDLDBF45ASSYNT (Obsolete) --> replaced by Resi 9 R9ADA315
DBF60--> PDLDBF60ASSYNT (Obsolete) --> replaced by Resi 9 R9ADA415

https://www.pdl.co.nz/products/circuit-protection/resi9/door-assembly-3-row-45-ways-light-grey-r9ada315?itemno=R9ADA315

https://www.pdl.co.nz/products/circuit-protection/resi9/door-assembly-4-row-60-ways-light-grey-r9ada415?itemno=R9ADA415

Resi 9 Substitution list can be found on page 4/56:
https://www.pdl.co.nz/PDL/media/PDL-Leading-Edge-Technology/Resi9/Resi9%20PDFs/PDL-Resi9_technical-catalogue-20231025.pdf

Released for:Schneider Electric New Zealand