AQ../AR.. Series are used to house Ex e and Ex i terminals. Maximum number of terminals changes on the base of terminals section, enclosure operating temperature and required temperature class. They are ideally suited for chemical agents environments, sea water corrosion resistance and extremes of low and high temperatures. EFE prefix is used for Ex de push button station execution and enclosure can be equipped with:
• Standard and emergency push buttons,
• Selector switches,
• Pilot lights;
• Measurement instruments;
• Electric and electronic equipment Ex de certified.