In the power measurement field, the meter shunt is one of the most commonly used applications for the 250 uΩ fuse resistor. In this case, the fuse resistor is placed in the circuit so that the fuse lead of the current divider can be directly connected to the circuit, making it easy for the current divider to read the current data in the circuit. In addition, in some cases where high-precision current measurement is required, the fuse resistor can also be used to protect fragile ammeters by isolating the high-voltage part from the low-voltage part, thereby reducing the noise and interference in the circuit.