7010.3290 with Cartridge Fuses D1 630mA F is a type D fuse manufactured by Schurter. It is a dual-element, time lag fuse with 10mm diameter, featuring a wide range of diameter lengths and current ratings, allowing for sizes suitable for PCB and other installations. The fuse is composed of a ceramic tube, with a heat sensitive resistor, and fuse wire connected in series. When a current higher than the nominal rating of the fuse flows through it, the heat sensitive resistor heats up and melts, causing an open circuit of the fuse and thereby protecting the device. The fuse is suitable for UL, CSA, and VDE approved applications, and is rated for a maximum operating temperature of 110°C. This fuse is suitable for electrical applications at voltages ranging from 250 VAC to 480 VAC, and is designed to protect small motors and circuit components from overloads and short circuits.