How to choose the leakage protector in the split meter ready board?

The selection of leakage protectors in split meter ready boards should be comprehensively considered based on multiple factors to ensure that they can effectively protect circuits and personal safety. Here are some key selection points:

Rated current and load matching: Firstly, it is necessary to select the appropriate rated current of the leakage protector based on the total current of the load connected to the split meter ready board. Ensure that the rated current of the leakage protector can meet the load requirements and leave a certain margin to cope with possible overload situations.

Action current and action time: The action current and action time of the leakage protector are its key performance indicators. The operating current should be less than or equal to the safe current of the human body (generally not exceeding 30mA) to ensure that the power can be cut off in a timely manner in case of leakage and prevent electric shock accidents. The action time should be as short as possible, generally not exceeding 0.1 seconds, to reduce electric shock time and electric shock injury.

Sensitivity and stability: When choosing a leakage protector, attention should be paid to its sensitivity and stability. High sensitivity leakage protectors can respond faster to leakage situations, but they may also malfunction due to small fluctuations in the circuit. Therefore, it is necessary to find a balance between sensitivity and stability to ensure that the leakage protector can work effectively without frequent misoperation.

Adaptability to environmental conditions: Select appropriate leakage protectors based on the environmental conditions of the split meter ready board, such as temperature, humidity, corrosiveness, etc. For example, in humid or corrosive gas environments, products with corresponding protection levels should be selected.

Brand and Quality: Choose well-known and reliable leakage protection products to ensure their stable performance, safety, and reliability. At the same time, pay attention to checking the certification mark and testing report of the product to verify its compliance with relevant standards and requirements.

In summary, the selection of leakage protectors in split meter ready boards needs to comprehensively consider multiple factors such as load demand, operating current and time, sensitivity and stability, adaptability to environmental conditions, and brand and quality.