James

Might be worth asking one of the admins to move this to the Wiring and Regulations section where they seems to be generally more activity. 

Better to @ mention one of the admins -2400- and we can move it there . Double posting duplicate content in different forums is not something we encourage. 

Noted and edited 

Probably need a bit more to go on (size, rating, brandname perhaps) - but looks similar to some of the Bussman ones to me (e.g. SAFEloc range) - if perhaps an older version judging by the moulding. RS usually have a good range of less usual fuse carriers - e.g. https://uk.rs-online.com/web/c/fuses-circuit-breakers/fuse-holders-accessories/fuse-holders

  - Andy.

@ perspicuous may have one in his workshop.

It seems that went bang with a vengeance. Do you especially need to replace like for like? And risk the same happening again? Or perhaps get something a bit beefier.

I have emailed a link to the stockholder of rare and obsolete electrical equipment as he doesn’t seem to pass this way these days.

Looks like a slidelock fuse, used to use them on the meter dept of the DNO I used to work for to protect contactors, also used in street lights, Bussmann make a similar one.

I live and learn, Google actually suggests a different spelling 

www.thefusecompany.com/.../k511fw-5amp-415volt-slydlok-fuseholder-black-k-range.php

I have one that is very similar and is marked "Lawson Fuses Clip Fit" 63 Amp. 415 Volt 5W. It can be held onto a back plate by a screw or a D.I.N. rail. The weakness here is the single terminal screws that may come loose.

Lawson 63A Clipfit Fuse Holder Black (LCF63 FCFC BK) | CEF loose.

The O.P's fuse seems to have been running hot for a considerable time. Overloaded perhaps?

Z.