Vauxhall ASTRA Owner's Manual page 262

There is a fuse extractor in the luggage
compartment fusebox to facilitate
replacement of fuses – see Fig. 17258 T for
an example.
Place the fuse extractor on the various
types of fuse from the top or side, and
withdraw fuse.
Self-help, vehicle care
Only fit fuses of the specified current
rating. Each fuse has its current rating
written on it, in addition the ratings are
colour coded.
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