Power Factors To Consider When Selecting Insulation Terminals
Cable Lugs The power management factors that should be considered in the row. At present, organizations such as UL, IEC, CSA and DIN do not have a unified standard when defining the power and performance specifications of terminal block products. Customers need to understand the difference between UL and IEC specifications. The specifications of terminal block products manufactured in Europe adopt IEC standards, while those manufactured in the United States adopt UL standards. The difference between these two standards is very large. Engineers who do not understand the product model will take a great risk, because the components used may not reach the required power level, or the specifications of the components used are far beyond the design requirements. The UL standard will make the metal conductor temperature higher than 90% of the current when the operating temperature is higher than 30°C as the current tolerance of the component.
It is not difficult to see that the temperature of the metal conductor part is a very important factor in all applications. It is very important for industrial electrical equipment. Because industrial electrical equipment generally requires an operating environment with a temperature of up to 80°C. If the temperature of the terminal block is 30°C or 45°C higher than this temperature, the temperature of the terminal block may exceed 100°C. Depending on the tolerance type and insulation material used in the selected components, the products must operate at a current greater than the rated current to ensure that they can operate reliably within the expected temperature range. Sometimes, the materials suitable for compact packaged components may not be able to meet the heat dissipation requirements well, so the current used when such terminal block components are used must be much less than the rated current.
Another factor that is often overlooked when selecting insulated terminal block components is the termination technology used in the product. Most power insulated terminal products still use the buried hole interface method. This method can provide the necessary mechanical support and ensure reliable electrical contact with the power layer placed in the double-layer circuit board. There are many different types of pins used to connect the terminal block to the circuit board. Some companies only offer single-pin models, while others offer multi-pin products. The advantages of a multi-pin product are that it allows the current to be distributed more evenly throughout the circuit board wiring, providing more reliable mechanical stability and increasing the robustness of the weld.
