GE TNI65 Neutral Kit, For Use With General and Heavy Duty Disconnect Safety Switch, 600 VAC, 400 A, (1) 2 AWG to 600 kcmil or (2) 1/0 AWG to 250 kcmil Aluminum/Copper, Copper. Specifications Brand Name Spec-Setter, Series TNI Manufacturer General Electric Switch Current Rating 400 Ampere Switch Voltage Rating 600 VAC Type Bondable/Groundable/Insulated Used On TG/TH Series General/Heavy Duty Safety Switch Wire Size (1) 2 AWG to 600 KCMIL/(2) 1/0 AWG to 250 KCMIL (Copper/Aluminum)