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26.9.2012 - UL Certificate of Compliance

As of September 2012 operational voltage rating of UL certified power resistors (Aluminum housed) was upgraded to 600V to the ground.  Resistors have been tested according to Safety Standards: "UL508 - Industrial Control Equipment" and "CSA C22.2 No. 14-05 - Industrial  Equipment" and compliant types are marked with "UL Recognized Component" sign. Certificate is filed under UL file No. E255307. Rating according to EN standards remains at 600 - 1 000V depending on type and design.