Identify this plug

[Adam_151]

Oh and dont ask the wholesaler for 1361 5A fuses, they'll not know what you mean and hand you a pack of 1362 fuses unless you specify you want them for a fuseboard rather than a plugtop

 

[ban-all-sheds]

plugtop

 

[wundaboy]

Yeah they were BS646 fuses.

I think I might have been thinking of an old fused spur which had a carrier similar to a clock plug that took BS646 fuses.

I've not seen one for years and years though.

Ha ha never done that, but I've seen plenty of 13A BS1362 fuses shoved into 5A BS1361 fuse carriers

There were two versions of the MK clock connector. The earlier one available in the 1960s was physically smaller and came supplied with a BS646 1 amp fuse in the plug. Not entirely sure of this but I seem to recall they had no earth connection. I've got one stored away somewhere, I'll see if I can dig it out.

The second version from the early 70s onwards is the one still on sale which came supplied with the BS1362 2 amp fuse.

 

[plugwash]

Now I know for certain the 5A plugs took 20mm fuses.

They are SUPPOSED to be used with BS 646 fuses which IIRC are very slightly smaller than 20mm fuses. Probably close enough to make them mechanically interchangable though.

I dunno how BS 646 fuses compare on breaking capacity and similar but on a lighting circuit the fuse/breaker for the circuit as a whole will be providing backup protection anyway so breaking capacity is probablly not all that important.