Mining Explosion-proof Vacuum Feeder Switch Mining Vacuum Feeder Switch equipped with high-performance PLC Vacuum Feeder Switch that dedicate to serve the feeder switch to protect and monitor. The product has various protection functions such as overload, short-circuit, leakage interlock, leakage protection, under voltage, over voltage, three-phase imbalance, gas interlock, interlocked circuit breaker, selective leakage protection, three-phase balanced protection, long distance short-circuit protection, communication networking. Our Intrinsically Safe Vacuum Feeder Switch is also available. Square switch with quick-actuating closures structure.  The whole structure is small and nice. The switch is equipped with quick plug-in connection and the technology is simple and direct Powerful function of communication network Standard RS485 interfaces are equipped with the device. Seamless joint field device can be realized. That makes it convenient to establish site monitoring system. The product has 4T (telemeter, telecommunication, telecontrol and teleregulation) functions and it is easy to access substations underground and merge into industrial Ethernet. Concentrated monitoring in ground control center now is available.