Spring return actuator)   Rotation Standard 0° to 90°  Energy supply All common electrical connections possible  Designs All protections classes available  Torques 25Nm to 900Nm Temperature ranges Standard -20°C to +80°C High temperature beyond +140°C ambient temperature         Accessories    signal devices magnetic solenoid valves silencer & flow reducers brackets & couplings manual emergency gears positioners etc.   in Deutsch