Anet A8 (Prusa i3) Power Supply Fuse A little backstory to help you understand the situation.  I put the 3D printer together and turned it on and everything seemed fine until I started printing.  It didn't even get the first layer down when the screen reset and so did the print.  I didn't think anything of it, I just went back and tried again, but this time right when I pressed start, the fuse blew.  

I have done some research on the issue and haven't had any luck besides recommendations for putting in a secondary fuse before the power supply (which I will be doing in the near future).  As for now though, my plan is to just replace the power supply fuse if possible.  I went to the hardware store and picked up a Bussmann T5AL/250V fuse (photo attached below) and before I put it in, I just want to make sure this is the correct fuse and I'm not going to kill the entire printer this time.  

Picture showing the internals of the power supply unit:



Picture of the fuse I bought:



Any and all help is very much appreciated because as you might expect, I'm not too happy with the printer so far.
The fuse rating is same as described on the board - so that shall be no issue with it.

My main concern is why the fuse is down?

Was there a short-circuit? As this is mains fuse - that suggest a big-bang, so, please check carefully hot-end and bed heater connections before restarting the device, to avoid replacing another fuse.