The Influence Of Environmental Factors On The Performance Of Press-type Terminal Connectors

Moisture, salt spray, or the presence of volatile chemicals can promote electrochemical reactions on the surface of metal conductors, generating oxides or corrosion products. This leads to decreased conductivity and increased contact resistance at the metal contact surfaces, thus affecting the electrical performance of push wire terminal block.

For push in terminal block wire connector exposed to such environments, if the surface of metal contacts is not properly protected, rust layers are prone to deposit under cyclic humid and hot conditions. Corrosion products not only alter the original interface geometry but can also cause irregular gap resistance, a condition particularly noticeable in automated production lines, outdoor distribution boxes, and humid industrial sites.

Over time, these effects gradually manifest as fluctuations in the connection performance of push in wire terminal block and intermittent failures in the electrical system. Engineering practice has shown that for terminals without protective measures, the chemical reactions at the metal contact points are more severe after long-term exposure.