C091D+ Circular Connectors Amphenol-Tuchel C091D+ Circular Connectors feature a metal screw coupling, metal backshell, and metal locking ring. These connectors have contact arrangements of 3 to 8, 12, and 14, 360° shielding, internal strain relief, and IP69K / IP68 protection rating when mated. The series is available in an M16 size and straight or angled male and female connectors or receptacles. Amphenol-Tuchel C091D+ Circular Connectors have an easy and reliable assembly and an outer cable diameter of up to 10.5m. Applications include heavy equipment, motion control, transportation, conveyors, and industrial inkjet printers.