The ABB OZXA-200/3 is a terminal lug kit that includes three lugs, each accepting wire from #4 AWG up to 300 MCM in copper or aluminum. It's built for use with ABB's OS100AJ30, OS200, OT200, OT200U30, and OT200_C fusible and non-fusible disconnect switches — the lugs are the interface between the switch line/load terminals and the incoming feeder or outgoing load conductors.
The #4–300 MCM range covers most feeder sizes for 200 A and 400 A disconnects. Cu/Al rating means no separate lug is needed when switching between copper and aluminum conductors — just torque to the values marked on the switch label. Three lugs per kit match a three-pole disconnect; order two kits for a six-pole or three-pole+neutral configuration.