Everel A1 & SXL5 Switches Tested To Meet EN60079 Explosive Atmosphere Standard. Cost effective, explosion proof switches for the Refrigeration industry. With the planned phase out of HFC gases by the European Union, the need to source alternative refrigerants with lower global warming potential is a challenge for Refrigeration manufacturers. The use of natural refrigerants such as R-290 (propane) and R600a (isobutene) are popular substitutes. However, one of the potential concerns for natural refrigerants .
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