Wago spring clamp terminal blocks are suitable for solid aluminum conductors up to 4 mm²/12 AWG if WAGO “Alu-Plus” Contact Paste is used for termination.

“Alu-Plus” Contact Paste Advantages:

• Automatically destroys the oxide film during clamping.
• Prevents fresh oxidation at the clamping point.
• Prevents electrolytic corrosion between aluminum and copper conductors (in the same terminal block).
• Provides long-term protection against corrosion.