1Amp 240V Cartridge Fuses from here

[Terry]

... the discussion ... reminds me of the day my brother managed to get a 60mA 1¼" fuse directly across the output of our 12V PSU ...

Much to his surprise - and mine, rather than blowing, as one might expect, it imitated a festoon bulb, glowing a cheerful orange ...

Which is because its resistance was so high that not enough current would flow to give a quick blow. 

 Oh thank you so much for explaining that to me, Jeffrey! I would probably have gone to my grave without understanding what was going on if you hadn't taken the trouble to tell me ...