Advanced AC fan speed control - TK monitoring - day-week timer
ST2R4 series are transformer fan speed controllers with day-week timer. They can switch between two optimal motor speeds. They control three-phase voltage controllable motors with a maximum current of 11 A. The fan speed is regulated in steps by varying the motor voltage. The TK monitoring function deactivates the motor in case of overheating. After a power failure, the motor will automatically restart. The enclosure allows surface mounting in indoor environments (IP54).
.jpg "Programmable Transformer fan speed controller")
.jpg "Transformer fan speed controller clock")
.jpg "Transformer fan speed controller timer function")
.jpg "Programmable fan speed controller")
.jpg "fan speed controller clock")
.jpg "fan speed controller timer function")