You are currently viewing the content available in Vietnam. If you are looking for information for another region, please select the correct country from the top-left dropdown in the page and 'Navigate to Browse FAQs' in the Support menu.
For indoors, the standard protection enclosure of the TRIHAL cast resin dry type transformer is IP 31. For non-standard and indoors, an IP 23 enclosure for a polluted atmosphere can be installed. For outdoors and customised transformers, an IP 35 minimum protection enclosure can be ordered.