A small current fuse that can interrupt DC 450V.
The new “DC fast-acting microfuses KB series” is compact and user-friendly by combining the alloy technologies and long experience of safety parts manufacturing that has been cultivated for over 100 years.
KB satisfies the needs to achieve both protection performance and design cost.

It can accept high current, 75A DC, and open a circuit quickly by receiving signal-current.
It can open a circuit quickly, within 60 sec. at room temperature by low signal current, below 1.5A.
Resistor portion is connected to fuse portion electrically and it can cut off the both portions simultaneously.
It can be installed by fastening screw.

High performance thermal cutoff which combine a cement resistor with a fusible alloy type tco.
Overheat protect function.
Superior characteristics against inrush current.
Extremely robust electrical insulation and voltage withstanding properties after it functioned.

High performance tco which combine two coil-winding resistors with a fusible alloy type thermal cutoff.
It reduces the mounting space and decrease the number of components.
It uses a coil-winding for greater ability to withstand inrush current the marking printed on the topside make easier to confirm the products.