The i5X IntelliTouch Expansion Unit offers five additional Auxiliary Circuits for systems i9+3, i9+3S and i10+3D. Each Expansion Unit requires a Load Center or Power Center.

Featured Highlights:

• 5 Circuit Model - i5X Expansion Kit with 5 Auxiliary Circuits (P/N 520142) Includes Outdoor Control Panel (Includes Motherboard and Personality board)
• Expansion Units and Load and Power Centers can be combined for enlarging the above IntelliTouch systems to up to 38 Auxiliary Circuits.