How To Select Surge Protector Models And Specifications

We all know that surge protective device are categorized into power surge protectors and signal surge protectors. Taking power surge protectors as an example, they are further divided into primary, secondary, tertiary, and quaternary power surge protectors. How should one select the appropriate model and specifications for a surge protector? What criteria should be used for evaluation? Below is a brief introduction to help guide your selection.

Select Based on the Protected Circuit Configuration

Determine the configuration of the protected power circuit—whether it is single-phase or three-phase, and whether the power voltage is 220V or 380V. Choose the appropriate configuration based on this information.

Select Based on the Power Level of the Required Circuit

Select the corresponding surge protector model according to the voltage level of the equipment being used.

Select based on the line's connection method

Choose either primary or secondary power surge protectors depending on the line's connection configuration.

Select based on the line's surge current distribution

Different lines require varying discharge capacities. Select a power surge protector with sufficient discharge capability, ensuring its rated capacity exceeds the line's surge current.

Overall, since there are no unified national standards for surge protection device models, different manufacturers produce entirely distinct models. Therefore, when selecting, always choose products from reputable brands with established credibility. Avoid counterfeit or substandard products due to cost savings. Select the appropriate power surge protector based on specific usage requirements and application scenarios.