211770-3 is a CPC (Circular Plastic Connector) plug assembly with shell size 23, standard sex configuration, Series 1, featuring special VDE certification. The plug housing is constructed from glass-filled Nylon 6/6 in black, with a coupling ring made of polyphenyl ether. The connector accepts 19 multimate socket contacts and features a maximum mating face dimension of 44.15 mm [1.738 in]. Contact cavities are identified by characters on both front and rear faces of the connector. This connector is commonly used in industrial applications requiring reliable circular connections with VDE compliance.