The Siemens 3VM9213-0JC22 is a TA2.3 circular conductor terminal — a wire connector accessory for the 3VM 250 molded case circuit breaker series. It handles two cables from 25 to 150 mm² each, with a built-in control wire voltage tap-off, and ships as a pack of three units.
Wire range and termination
The terminal accepts stranded copper from 4 AWG up to 300 kcmil, with a torque spec of 275 lb-in. Finely stranded copper in the same range is also accepted — no ferrules required for fine-strand, just clean stripping to 1.0 or 2.0 inches.