Used in house service cutouts.
This rather old fuse was previously used in a cutout supplying a house.
Originally white with silver coloured caps, this example is extremely dirty.
Rated at 100 amps, and made to BS88:1952.
Brush 100 Amp 100LR
Certified 440V AC4
BS88:1952
Class Q
Made In England
This similar example is marked BS1361:1971 and has red printing. It is the same physical size as the BS88 example above.
Rated at 100 amps, and made to BS1361:1971.
Brush 100 Amp 100LR71
ASTA Certified 415V
BS1361:1971
Pat Pend
Made In England