4 pole double throw knife switch is an electrical switching device used to break or connect current in a circuit, available with a resin base, manual operation mode, and optional current 32A/63A/100A/225A.
|| AC 380V
||The knife holder/blade/bottom are all made of copper.
||Screws, terminals, and rivets are made of iron.
Dimensions （Unit: cm）
Tips: What is a knife switch used for?
A knife switch is primarily used for controlling the flow of electricity in a circuit. It is often used in educational settings, laboratory experiments, and small-scale electrical projects to provide a visible and tangible means of opening and closing circuits.
Knife switches are also used for safety purposes in certain situations. They can serve as an emergency disconnect or shutdown mechanism, allowing a circuit to be quickly and easily interrupted in case of an electrical fault or hazard.
In addition, knife switches are occasionally employed in historical or vintage electrical installations, where their mechanical simplicity and visual appeal are valued.
However, it's worth noting that in modern electrical systems, knife switches have been largely replaced by more advanced and safer switch designs, such as toggle switches, rocker switches, and push-button switches. These alternatives offer greater convenience, reliability, and improved safety features.