Although the name "power terminal" does not sound pretty, many companies believe that it plays an important role in product appearance and user affinity.
Power terminal blocks are convenient for field installation because they are often installed on the front end of the product panel that is easy to see. In this way, marketers often want to have a say in the appearance of power terminal products. But often encounter this situation: the product designed by the engineer meets the requirements of the mechanical and electrical parameters, but has to be changed because it does not meet the sales requirements. If this happens later in the design cycle (often when the marketing department sees the prototype for the second time), then a fierce debate is unavoidable and may lead to increased costs and delayed delivery.

In many industrial control systems, wiring terminals are often one of the few components that technicians need to pay special attention to. Although its user interface is relatively simple (mainly screws), it is very important for the normal operation of the device.
In general, as the current increases, the wires become thicker, and the torque required to fasten these thick wires to the terminals also needs to increase. Therefore, the power terminal requires screws and a more insulating casing. Sometimes small screws are used to save space. This is often the case in very compact terminal products. Some wires are more than 1/4 inch in diameter, so these small screws are difficult to deal with.
When technicians and maintenance personnel need to install multiple wires, using large enough screws to simplify the wiring work can save time. This is why it is so important for engineers to listen to the opinions of the marketing department as early as possible in the design process. If the terminals are properly polished or the appropriate colors are used, it is much easier to propose these parameters as the original product requirements than to adjust them at the end of the cycle.
When terminal blocks are used in consumer products (such as stereo products), appearance becomes more and more important. In fact, some designers often specify gold-plating for terminal devices used in audio equipment. Although this increases the cost and does not significantly improve, the gold-plating does indeed improve the appearance of the product.

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