Consequences Of Insufficient Thickness Of Copper Terminal Block Housing

When using the copper terminal block, if its outer shell is too thin, it is more prone to melting or deformation under conductor heating conditions. This structural weakness first manifests as localized high temperatures in the terminal connection area.

Temperature rise often originates from poor contact at the connection point or the electrical load exceeding the design capacity, leading to increased contact resistance and thus heat generation. When heat is concentrated on the thin-walled shell of the copper distribution block, although its thermal conductivity is good, it cannot withstand thermal stress, resulting in plastic deformation or melting.

The thin-walled design reduces the copper terminal strip shell's ability to withstand temperature fluctuations and mechanical stress. Once the temperature inside the terminal or at the connection point briefly exceeds the material's tolerance limit, the shell structure may rapidly destabilize. If the equipment operates in an environment with humid or corrosive gases, it may further exacerbate poor contact, making the heating trend more pronounced.