This variable phase-angle regulator has been designed for 230V, 10A single phase mains driven inductive loads, such as induction motors, fans and pumps giving fully adjustable voltage outputs from zero to maximum.
The controller has an integrated RC snubber network for control of inductive loads and a zero set speed adjuster to allow the designer/installer to fix a maximum and minimum output voltage level to prevent a motor being driven too slowly.
The large triac enables the unit to handle high inrush currents with ample safety margin on industrial installations.