MK1 1978 Relay 52 & Blade Fuses

Hey,
Does anyone have any info for me on the relay 52 in my photo below? I cant find anything online about relay 52. Have found the list of relays etc but there is no 52.

Also has anyone got a trick for upgrading to blade fuses on the my fuse box?

Reading the part number on the relay would be a better thing to search on. The Number on the top of the cover is a number.  The part number is XXX XXX-XXXX then the rev ie:B C…. usually.

Thanks Briano - yep it's the glow relay. 

STurbo said

Thanks Briano - yep it's the glow relay.

7 second or wait forever.
Should of said Diesel.  Never seen a Eurp-Diesel fuse panel, but seen a few "Westy ones over here"

There are great Rabbit (westy shematics avail) with the usa style of fuse box.

VW Wiring Diagram PDFs; 1982, 1983, 1984 | chris.chemidl.in
 

This is the part see below in photo. 

Are there upgrades or better fuse panel set ups with modern blade fuses or just keep this old style?

That is the slow glow relay from the part number.  or as I used to call it the wait forever.

I don't know about the interchangability of the ceramis to blade fuse differences in the early models, pm RUBJOHNNY he may know off the top of his head.