The ATC1-12TK is for use with single phase voltage controllable fans. Auto transformer controllers regulate the voltage output whilst maintaining a true sine wave. The great advantage of this type of control is the low motor noise and almost no EMC emission problems.
The ATC1-TK range is for use with single phase fans that have thermal contacts (TK). If the fan motor overheats and the TK contacts open the controller will trip.
• Single phase models housed in ventilated grey plastic enclosures
• 5 speed settings via rotary switch
• Reset button
• Thermal overload fitted
• Suitable for 2 or 3 wire control