Digi-Key has a considerable selection of panel mount time delay relays. H5CR-S is one specific relay which has gone obsolete and we have a direct replacement made by Panasonic. LT4H-DC24VS
Taken from Omron datasheet - H5CR1-7 FOR PDF (octopart.com)
Taken from Panasonic datasheet - 6208_euen_1208_TimersCounters.pdf (panasonic.eu)
If there are any questions on this, please reply to this post and we will be happy to address them.