BIMETAL FUSE Russian patent published in 2000 - IPC

FIELD: overload protective gear for industrial equipment and domestic appliances. SUBSTANCE: fuse has insulating base, power leads in the form of flat metal strips, clicking bimetal sensing member made of strip with U-shaped clapper inside it, fixed contact on one of power leads, and movable contact on sensing member provided with movable resistive member in the form of strap mounted on this sensing member and following inner and outer contours of the latter; strap is connected in parallel with sensing member at movable contact location point and at sensing-member-to-power-lead joint. Strap has lug that functions to mechanically join it to sensing member at point opposite to base of U-shaped clapper. EFFECT: improved efficiency of adjustment of fuse time-current characteristic due to introduction of resistive member. 2 cl, 8 dwg