Contact Inserts: Type - Circular Connector Insert; Shell Size - Size 18; Positions-Circuits - 4 pos.; Terminal Contacts - Socket; Termination - Solder; Wire or Contact Size - 4#12 Contacts; Contacts - Current Rating - (4)23A; Rating - Voltage - 500VAC 700VDC (at sea level); Mounting - Plug or Receptacle Shell; Material - Terminals - Silver Plated; Manufacturer Series - 97 Series