Alco, Aspen, Danfoss-Secop, Dixell, Eliwell, Johnson Controls, Ziehl-Abegg. Articles of these manufacturers can be found in our online shop category electric speed controller. These manufacturers have been known for many years to produce excellent high quality speed regulators for refrigeration. If you would like information about the manufacturer, click on the desired manufacturer logo. Further information on the article can be obtained by clicking on the corresponding product image. ##ausblenden## With us you can order speed regulators from the market leading manufacturers for a fair price. Many of the speed controllers are in our stock and can be delivered as quickly as possible.