This range of speed controllers with autotransformer allows the regulation of fans with belt transmission with single-phase motors (motors suitable for transformer regulation).
Unlike three-phase motors (for which the IE1 efficiency class is no longer allowed in CE countries since 01/07/2021), single-phase motors with IE1 efficiency can still be applied.
Unlike three-phase motors (for which the IE1 efficiency class is no longer allowed in CE countries since 01/07/2021), single-phase motors with IE1 efficiency can still be applied.