Which is better, the old switch knife or the new switch knife?

1, the new switching tool has the functions of overload, short circuit and undervoltage protection, which can effectively protect circuits and equipment. However, old-fashioned switches often need to use fuses. If the fuse is improperly selected, the circuit is overloaded or short-circuited, and the power supply cannot be cut off in time, resulting in losses.

2. The new knife has simple structure, convenient operation and easy maintenance. However, the old-fashioned switch needs to check and replace the fuse frequently, which is complicated to operate and faces potential safety hazards when replacing the fuse.

3. The new switch tool has the function of automatic tripping, which can automatically cut off the power supply when the circuit is overloaded, short-circuited or undervoltage, and protect the circuit and equipment. The old switch needs manual operation to cut off the power supply, which is not timely and safe enough. To sum up, the new switch knife is safer, more convenient and more reliable than the old one, so it is more popular.