Further information for TURCK 6914551 BK4140-0/9 Connector
Field attachable connector, 7/20,3 cm ( 8 inch ) coupling, straight, rated voltage 250 V, for use in PROFIBUS-PA and FOUNDATION fieldbus applications, screw terminal connection, aluminum anodized union nut, 4-pin, PG9 screw-in thread, cable passage 6.0 . 8.0 mm