3M CI-21 Aluminum Connector , 2, 1 AWG Stranded, 1, 1/0 AWG Solid
This is a 2, 1 AWG stranded, 1, 1/0 AWG solid connector with a 2 inch body and a 0.63 in (16 mm) O.D., that are for splicing applications on aluminum or copper cable products
The 3M™ Connectors CI Series are for splicing applications on aluminum or copper cable conductors. The aluminum connectors CI Series are specially designed for use with 3M™ Pre-molded Power Cable Splice Bodies QS-I, QS-II and QS-III. These connectors meet the requirements of ANSI C119.4.