20A 300V 2.5mm² grey three-level terminal block-unusedData sheet | Item number: 280-557 Triple-deck terminal block; Ground conductor/through/through terminal block; with marker carrier; for DIN-rail 35 x 15 and 35 x 7.5; 2.5 mm²; CAGE CLAMP® 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
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