Quote Originally Posted by Boyan Silyavski View Post
Some electrical help here please.

If the heated bed consuption will be 2.1A at 220V, and 500W, then what cutoff fuse should i choose? I am looking at 150C 2.5A and 150C 5A. Which one will be better? I assume the 5A? As it will cut off at 150C in both cases, i am not sure about the amps.
If this is a thermal cutoff that you're talking about then either is sufficient - either will handle the current draw, and disconnect. Of course, the over-current protection needs closer consideration; I'd not go as low as 2.1A, but 3A would be adequate (just make sure that all cabling and switchgear is rated at 3A).