Terminal ratings and compliance
The 3VA9134-0JB11: The terminal carries both UL and IEC markings: UL listing TA1.1 CMC 14-3/0 CU7 12-3/0 AL7 UR CSA, and IEC marking 1.5-95 CU 4.0-95 AL NNL. That means it's approved for copper and aluminum conductors under UL 486A-486B and IEC 60947-1. The aluminum solid range is tight (10–16 mm²), but stranded aluminum covers 12 AWG to 3/0 AWG. Finely stranded copper also spans 8 AWG to 3/0 AWG — same torque as standard stranded.
