Resource Brochure

49 Test marks and symbols / Safety classes Safety class 2 – Devices without earth conductor connection Equipment in which protection against electrical shock does not rely on basic insulation only but in which additional safety precautions, such as double insulation or reinforced insulation, are provided. There is no facili- ty for connection to protective earth conductors. Safety class 3 – Devices using safety extra-low volt- ages Equipment in which protection against electric shock is based on the use of safety extra-low voltage and in which no voltage higher than the safety extra-low volt- age is produced. Low pressure system Low-pressure halogen lamps may be operated in an open fixture without a glass cover. Distance to the illuminated surface The distance to the illuminated surface stated on the lights must always be observed as the minimum dis- tance. IP codes IP 20 IP 21 IP 40 P 44 IP 65 Protection against foreign bodies / water Protection against medium-sized foreign bodies / no protection against water Protection against medium-sized foreign bodies / pro- tection against water Protection against granular foreign bodies / no protec- tion against water Protection against granular foreign bodies / protection against splashing water from all directions No ingress of dust / protection against water jets Use only in dry rooms The following marks confirm compliance with North American standards Test mark of the ETL Institute Test mark of the UL Institute QPS test mark for Canada and USA C-Tick test mark Australian/New Zealand standards ENEC European mark of conformity: Confirmed standards conformity for electrical products through national cer- tification bodies. geprüfte Sicherheit VDE-GS mark German mark for appliances as technical equipment according to the Appliance Safety Act GSG EMC Approval mark of the VDE, confirming compliance with the law on electromagnetic compatibility CE The CE mark certifies among other things compliance with the Low Voltage Directive and the EMC Directive by the manufacturer or importer. F-mark Luminaires with suitability for direct mounting on nor- mally flammable surfaces carried the F-mark in the past. This is no longer required by current standardiza- tion status, but assumed. Only deviations are marked. MM mark Lights and transformers suitable for installing in or on furniture which are made from materials with unknown flammability properties Temperature-protected electronic transformer Transformer with temperature protection. The value in the triangle shows the maximum housing temperature in the event of a defect. M SELV M Short-circuit-proof safety transformer M SELV BAUART GEPRÜFT TYPE APPROVED M land Production inspected Independent electronic transformer For use outside lights without additional cover. Maximum permissible ambient temperature This is the temperature level up to which no compo- nents are thermally overloaded. Temperature reference point Denotes the temperature reference point on the housing surface which, if exceeded, reduces useful life. Protective low voltage (Safety Extra Low Voltage) Safety class 1 – Devices with earth conductor con- nection Equipment in which protection against electrical shock does not only rely on basic insulation. An additional measure of protection is given by connecting those conductive components to the protective earth conduct or in the building wiring that are otherwise capable of assuming hazardous voltages if the basic insulation fails.