It's actually a mini switch with a built-in Bimetallic Thermal Sensor. It consists of two thermally different metals stuck together back to back. When it is cold the contacts are closed and current passes through the switch. When it gets hot, one metal expands more than the other and the bonded bi-metallic strip bends up, opening the contacts and preventing the current from flowing.
The fuse can stand up to 10,000 reset cycles.
Input voltage : 100V-250V
Power rating : 250V ~10A/2500W
Max load : 10A automatically restored
Material : Environmental protection material
Built-in auto-resetting fuse, fuse can be used 1000 times
Item No : TA 1044