The overload protector is a very important part of the electrical system. Its function is to detect the current in the circuit, and automatically cut off the power supply when the circuit load is too large, so as to protect the equipment from being affected by faults such as overload or short circuit. It is very important to choose overload protector correctly, here are some methods of choosing overload protector.

First, understand the electrical system parameters

Before purchasing an overload protector, we need to have an in-depth understanding of the electrical system we are in and master various parameters, such as working voltage, rated current, load type, etc. Because the selection of the overload protector needs to consider these parameters, if these parameters are wrong, the overload protector will not work normally, and even the equipment will be damaged.

2. Choose the correct rated current

The selection of overload protector needs to be determined according to the load current. It is very important to choose an overload protector that meets the load current requirements. Otherwise, choosing an overload protector that is too large may cause the protector to fail to work normally, and choosing a overload protector that is too small may cause unnecessary power outages.

3. Pay attention to the ambient temperature

The overload protector generally needs to adapt to the ambient temperature. If the ambient temperature is too high, the protection performance of the overload protector may decrease, or even malfunction. Therefore, the correct selection of overload protector needs to take into account the ambient temperature, and select a suitable model according to actual needs.

Fourth, consider the type of failure

When purchasing an overload protector, we also need to take into account possible fault types, such as short circuits and overloads. This needs to be evaluated according to the actual situation, and the corresponding protector model should be selected.

5. Choose a good quality overload protector

A high-quality overload protector can not only ensure the normal operation of the electrical system, but also help system engineers avoid some potential problems. Therefore, when purchasing an overload protector, you need to choose a well-known brand product to ensure reliable quality.

In short, the correct selection of overload protector is very important for the stability of the electrical system. Only by mastering the above purchasing methods can you choose a high-quality overload protector, thereby bringing better protection to the electrical system.