page_title: Industrial and multiphase power plugs and sockets
section_title: Former Yugoslavia
hierarchical_section_title: Industrial and multiphase power plugs and sockets / Europe / Former Yugoslavia
caption_attribution_description: English: How does 3 phase wall plug looks like in the ex-Yugoslavia countries
context_page_description: Industrial and multiphase plugs and sockets provide a connection to the electrical mains rated at higher voltages and currents than household plugs and sockets. They are generally used in polyphase systems, with high currents, or when protection from environmental hazards is required. Industrial outlets may have weatherproof covers, waterproofing sleeves, or may be interlocked with a switch to prevent accidental disconnection of an energized plug. Some types of connectors are approved for hazardous areas such as coal mines or petrochemical plants, where flammable gas may be present.
  Almost all three-phase power plugs have an earth connection, but may not have a neutral because three-phase loads such as motors do not need the neutral. Such plugs have only four prongs. An example of a socket with neutral is the L21-30 and the L21-20 both of which have five pins.
  While some forms of power plugs and sockets are set by international standards, countries may have their own different standards and regulations. For example, the colour-coding of wires may not be the same as for small mains plugs.
context_section_description: This type of three phase plug and sockets are mainly used in households in ex. Yugoslavian countries, they are 5-pin 3-phase connectors, rated at 16 A, 380 V. Industrial 3-phase connectors are same as European IEC 60309.
caption: 380 V Yugoslavian 5-pin 3-phase wall socket
exif: {}