Non-Standard Plugs are the multiphase industrial plugs, designed to give a connection to the electrical mains. Usually, these are used in polyphase systems and deliver advanced protection from environmental hazards. These are featured with waterproofing sleeves and weatherproof covers. Also, these are interlocked with a switch for preventing accidental disconnection of an uplifted plug. Non-Standard Plugs can be used in the agricultural sector for ventilation equipment, pumping, drying, and other similar processes. The plugs are made specifically for MK non-standard sockets. Supplied plugs can be used well with polarized sockets.