A range of auto transformer fan speed controllers for use with single and three phase voltage controllable fans.

Auto transformer speed controllers regulate the voltage output whilst maintaining a true sine wave. The great

advantage of this type of control is the low motor noise (humming) and almost no EMC emission problems.

ATC Range Features

• Single phase models (Except ATC1-16) housed in grey plastic enclosures

• Speed settings via rotary switch

• Single phase models suitable for 2 or 3 wire control (except ATC1-1.5 - 2 wire control only)