Terminating Aluminum Conductors
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.
Using terminal blocks with PUSH WIRE® Spring Pressure Connection Technology, aluminum conductors must first be cleaned with a blade and then immediately be inserted into the clamping units filled with “Alu-Plus” Contact Paste.
It is also possible to apply WAGO “Alu-Plus” additionally on the whole surface of the aluminum conductor before termination.
Please note that the nominal currents must be adapted to the reduced conductivity of the aluminum conductors:
2.5 mm² (14 AWG) = 16 A
4 mm² (12 AWG) = 22 A
Safety information 1:
In grounded power lines