Circuit diagramsFurther informationEN 20, EN 25, EN 31EN 20, EN 25, EN 31ENR 20, ENR 25, ENR 31ENR 20, ENR 25, ENR 31ENR 20, ENR 25, ENR 31ENR 20, ENR 25, ENR 31ENR 20, ENR 25, ENR 31ENR 20, ENR 25, ENR 31