Course Power & Control offers Thermal Shock Resistant Thyristor Controllers. Course Power & Control manufactures a range of power electronics equipment and PLC bases control panels for Automation. The Thermal Shock Resistant Thyristor Controllers are primarily used at the places where regulated heat is required. The range is available with phase angle control and time cycle control to bear the resistive loads. These thyristor controllers are widely used in automation of plants and also are used by furnace manufacturers.