With the current increase in concern for the safety of electrical appliances, the market for products such as earth leakage protectors and air switches that guarantee the safety of electrical appliances has also expanded. In this article we will introduce you to voltage protector sockets, their specific functions, the differences with leakage protectors etc. and how to procure a cost-effective voltage protector.

I.Why voltage protector sockets are needed

In areas where the infrastructure is not perfect (e.g. remote areas such as rural areas where the power supply lines are too long) or during lightning weather or peak electricity consumption, the voltage is sometimes not as stable as we would expect with a continuous supply of 220V or 110V.

If the voltage is too high, it will directly accelerate the insulation ageing of electrical equipment and reduce the life span; if the voltage is higher than a certain range, it will directly burn the electrical appliances (e.g. TVs, DVDs, stereos, etc.), and in serious cases, it will lead to damage to the appliances or even cause a fire.

If the voltage is too low, as the rated power of the load is fixed, the current will become larger, and when the current is too large, it will cause great damage to the motor and compressor. For example, refrigerators, freezers, water pumps, washing machines, air conditioners, etc.; so for high power or high value appliances, voltage protector sockets are needed to extend the life of the appliance and to ensure safety.

In addition, voltage protector sockets are portable, plug and play, and avoid tedious professional steps such as installation.

II.Voltage protector socket classification and working principle

1) Classification: There are two main types of voltage protector sockets, one is a protector designed for specific appliance voltages, such as refrigerators, high voltage Hivolt, TV, fax, light socket protectors with indicators to show the working energized state. The other type is one that can modify the value of the set voltage to suit different appliances according to your needs. The difference is shown in the diagram below.

2)Working principle: First of all, take a 220V protector for example. You can preset a number. If the factory set working range is 165-250V, then the voltage protector will cut off the power when the voltage is below 165V or above 250V to protect the working appliances. When the voltage returns to the set range, the power is automatically switched on again.

III.Differences with earth leakage protectors and air switches

In addition, voltage protectors do not have the same role as earth leakage protectors and air switches.

(1) Leakage protectors, referred to as leakage switches, also known as leakage circuit breakers, can generally be divided into 3 kinds: leakage protection relays, leakage protection switches and leakage protection sockets. Leakage protection is a combination of circuit breaker and residual current action protector, with overload and short circuit protection, mainly to prevent accidental electric shock.

(2) Air switch, also known as air circuit breaker, is a kind of circuit breaker. Its function is to automatically disconnect whenever the current in the circuit exceeds the rated current. The current through the switch exceeds a certain current will be due to heat to the metal sheet heat bending and lead to the switch off cut off the power supply, to protect the circuit does not burn due to excessive current, only to protect the role of the circuit.

(3) Voltage protector, for sudden changes in voltage, over-voltage, over-voltage, under-voltage can be intelligent automatic fast cut off the power supply devices. The main role is to carry out comprehensive monitoring, control and protection of the voltage.

Many times, we only consider the leakage protection and electric shock protection. Thus, in the daily decoration or purchase, we only choose the air switch and leakage protector, but ignore the protection of our current and voltage. And the too high or low current can cause damage to the line equipment, and in serious cases it can cause property damage or personal injury or death.

IV. How to choose and judge a good or bad voltage protector

So how should purchasers choose a cost-effective voltage protector? You can mainly judge from the following 4 points:

1. Look at whether it is intelligent. If there is a built-in circuit board and program control, then you can change the program to achieve your specific needs for parameters.

2. Look at how good the quality is. If there are built-in brackets and wiring, and the plugs are made of good copper parts, then there is some guarantee of quality.

3. Look at their processing skills. If it is SMT SMD process, then the protector performance is more stable and reliable.

4. Look at its shell material. If the protector shell uses ABS flame retardant material, then the texture is better.

I am sure that through the above you have a good understanding of voltage protector sockets and how to source cost-effective voltage protector sockets. If you have any questions or would like to know more, please feel free to consult us or visit our website: www.hbsocket.com.