There is no spark problem with mechanical switches.
No noise, no pollution.
The ON/OFF speed is fast.
Product reliability and long life.
DC control, isolated from AC power, easy wiring, no auxiliary power required.
The fan adopts a patented extraction method, which greatly overcomes the difficulty of maintenance.
With three-phase under-phase detection and alarm connection (ALARM) (optional function)
The Republic of China patent, counterfeiting will be investigated.
CE certification passed.
Note: The complex type (with alarm function) is different from the standard type. Please pay attention when wiring.