Electric multi-turn actuators - AUMA - #9

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Corrosion protection Colour Efficient corrosion protection is a major factor in the guarantee of a long operating life. For the individual parts, the AUMA corrosion protection system is based on a chemical preliminary treatment, followed by a two-layer powder coating. In compliance with the corrosivity categories according to EN ISO 12944-2, various AUMA corrosion protection levels are provided to suit the different applications. The standard colour is silver-grey (similar to RAL 7037). Other colours are possible on request. AUMA Corrosion Classiï¬�cation of environments according to EN ISO 12944-2 protection Atmospheric corrosivity categories class C1 (very low): Heated buildings with clean atmosphere C2 (low): Unheated rooms and rural areas with low level of pollution C3 (medium): Production rooms with humidity and moderate pollution. Urban and industrial areas with moderate sulphur dioxide pollution Total ï¬�lm thickness Outdoor use of devices and for low atmosphere pollution 140 μm KS Location Use of devices in occasionally or permanently aggressive atmospheres with a moderate pollutant concentration C4 (high): Chemical plants and areas with moderate salinity C5-I (very high, industrial): Permanently high condensation with high pollution KX KX-G (aluminiumC5-M (very high, marine): Permanently high condensation with high free) salinity and high pollution 200 μm Use of devices in extremely aggressive atmospheres with high humidity and high pollutant concentration Use of devices in extremely aggressive atmospheres with high humidity, high salinity and high pollutant concentration (e.g. cooling tower, offshore) Ambient temperatures AUMA actuators are used in both hot and cold environments. Adapted versions are available to suit various ambient temperatures. Temperature range Type Multi-turn actuators for open-close duty SA Version Standard Options Multi-turn actuators for modulating Standard duty SAR Options Controls not directly mounted –40 °C … +80 °C –50 °C … +60 °C –60 °C … +60 °C 0 °C ... +120 °C –40 °C … +60 °C –50 °C … +60 °C –60 °C … +60 °C Controls directly mounted AM –40 °C … +70 °C –50 °C … +60 °C –60 °C … +60 °C AC –25 °C … +70 °C –50 °C … +60 °C –60 °C … +60 °C –25 °C … +60 °C –50 °C … +60 °C –60 °C … +60 °C |9