The CE mark on the cable indicates that it complies with the safety, health, and environmental protection essential requirements set out in the EU directives, mainly the Construction Products Regulation (CPR) and the Low Voltage Directive (LVD). These trays do the job of supporting and organizing all those wires, making sure everything runs safely and smoothly. Some brands, like Legrand and Panduit. CE cables are not a specific cable type but cables carrying the CE label. A UL marking indicates rigorous testing for fire resistance, electrical performance, and overall safety.