2 Siemens TA1FD350A 350 KCMIL Breaker Lug Wire Grip Kit for Aluminum/Copper Wire ✔ Accepts #6 awg through 350 kcmil copper wire. ✔ Accepts #4 awg through 350 kcmil aluminum wire. WIRE RANGE: 6AWG - 350KCMIL (CU) / 4AWG - 350KCMIL (AL). SUITABLE FOR LINE AND LOAD SIDES. SINGLE LUG. byJuly 3, 2026