The difference lies in the rated leakage action current of the leakage insurance. The action current is the amount of current that the leakage protector will cut off the power supply when it detects a leakage in the circuit that exceeds the set value.
The common leakage current is 100mA and 500mA. The 100mA leakage current is smaller and is suitable for places that require higher safety, such as medical equipment and high-risk electrical equipment. 500mA leakage current is larger and is suitable for general residential and commercial places.
Thus, the 100mA leakage protection is more sensitive and can cut off the power supply in a more timely manner, providing higher safety. The 500mA leakage insurance is less sensitive and can cope with leakage from general electrical equipment.
It should be noted that the leakage protection requirements may vary in different countries and regions, so please select the appropriate leakage protection according to local laws and regulations. If necessary, please consult a professional electrician or relevant authorities for advice.