This type of knife switch has the following features: 1. overload protection function: when the current exceeds a predetermined value, the knife switch will automatically trip and cut off the power supply to prevent the equipment from being overloaded and damaged. 2. short-circuit protection: if there is a fault in the circuit that causes a short-circuit in the wires, the knife switch will also automatically trip to protect the electrical appliances and personnel safety. 3. controllable current flow: through manual operation, you can control the on/off state of the knife switch to regulate the current flow in the circuit. 4. high reliability: the knife switch is made of high quality materials. 4. High Reliability: Made of high quality materials and subject to strict testing and certification to ensure its long-term stable operation and high reliability performance.