UL 508A Certified Panel Shop

Benefits of a 508A Certified Industrial Contactor Control Panel

  • UL 508A certification provides the inspection authority and your customer evidence that the control panel complies with nationally recognized safety standards. These standards ensure public safety, and provide assurances that the electrical control panel is compliant with national and local electrical codes.
  • Manufacturers that carry the UL 508A certification are subject to periodic unannounced inspections of their facilities by UL personnel. Through periodic audits of the manufacturers, UL can insure the manufacturer continues to meet the UL requirements for 508A certification.
  • For a control panel to carry the UL 508A Listing Mark, the panel must contain only UL recognized and listed components. The UL Mark on a component means that UL has evaluated and tested samples of this component and has concluded that they meet the UL requirements. This protects the quality and integrity of the enclosure and provides guarantee of safe performance.

A UL label signifies that the panel builder has met the requirements of UL508A, and that their panels are subject to inspection by UL field representatives. Not every panel is inspected by UL, but panels are subject to inspection by UL depending upon the quantity of UL Labeled panels made in a given time period. A UL Follow Up Services representative inspects the facility and reviews the panels to the UL508A Procedure for the particular panel shop being inspected. If the panels are found to be in compliance, they are permitted to continue production and apply the UL Label.

A UL listed component bears the UL listing mark and has been subject to testing. The UL Listed label is evidence that the manufacturer submitted complete product samples for testing, witnessed by UL representatives. These products are subject to testing and evaluation by UL and were found to meet nationally recognized safety standards. Products can also be “UL Recognized”, which means that the product was found to be safe in particular when reviewed and accepted by UL in the final application. OEMs utilizing UL Recognized components in a control panel must ensure that their application meets additional requirements described in their UL procedure.