United Automation Fan Speed Controller, 230 V ac, 15A Max, Infinitely Variable

VAC2-15E 15A Fan Speed Controller

These variable phase angle regulators are robust, compact and enclosed units for 230V or 110V up to 15A single phase mains driven inductive loads, such as induction motors, fans & pumps. They give fully adjustable voltage outputs from zero to maximum. A version (/S) of these controllers also incorporate an OFF switch when the potentiometer is fully anti-clockwise.
The controller has an integral RC Snubber network for control of inductive loads.
Minimum Set Speed adjuster (at the rear) allows the designer/installer to fix a minimum output voltage level to prevent a motor being driven too slow.