UL is the best-known certification body in the U.S. for components and systems for motorized windows and natural ventilation.
The UL Listed Mark on a product is the manufacturer’s representation that samples of that complete product have been tested by UL to nationally recognized safety standards and are found to be free from reasonably foreseeable risk of fire, electric shock and related hazards.
UL’s Component Recognition Service covers the testing and evaluation of component products that later will be used in complete end products or systems Listed by UL.
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