Mark, 250 ma is 1/4 amp (ampere), so that is definitely not right. You were probably looking at the value that appears by default for the large size fuses. Click the inverted pyramid symbol next to that value and you'll find the other available choices.
The response from Hegel that Bob provided was:
Regards,
-- Al
The response from Hegel that Bob provided was:
The fuse should should be 15 Amps. Specification should be 250V T15A"T" denotes slow blow. Also, since Bob said that "the closest Black SR fuse is a 16amp," and since the large size fuse is offered in a 15 amp rating as well as a 16 amp rating, I suspect that you would need the small size. But wait for Bob to confirm that.
Regards,
-- Al