Fusebox - Condenser fuse?

Hi!
I believe my condenser fuse is bad but the entire casing appears to be damaged, and I am having difficulty finding a replacement part. I'm hoping someone can give me the correct search terms or point me in the right direction. When I try to start my car it powers on, but as soon as I depress the brake pedal to switch gears it turns itself off, when I remove my foot from the brake it turns itself back on, but I cannot engage it in any gears or fully power on.

 

p.s. I searched the forums here.... and google... and Youtube... and manuals