The UL508a Certification is an industrial panel standard that provides evidence of a panel’s compliance with the standards developed and tested by Underwriters Laboratories (UL). These standards are necessary for public safety and ensure that the industrial electrical control panel complies with national and local electric codes. Additionally, certified panels have the benefits of increased safety and productivity because they are built with components and assemblies that have been tested and verified to withstand specific hazardous conditions. As a result, by using UL certified and labeled panels, you will experience fewer delays and lower costs in the long-term. Another major benefit for specifying only UL listed and labeled panels is that they are accepted by the JHA (jurisdiction having authority) in every municipality in the US and Canada.