What is a Circuit Breaker, What is it Used for and How Does a Breaker Trip Happen?

What is a Circuit Breaker and What is It Used for?
 

We benefit from electrical energy in lighting, the operation of small household appliances, charging technological devices, and many other areas. Nowadays, using electrical energy is as easy as pressing a button or plugging into an outlet. However, there is a large system established in the background to safely deliver electricity to our homes. One of the most important components of this system is the circuit breaker. Let's take a detailed look at circuit breakers.
 

What is the Purpose of a Circuit Breaker?
 

Circuit Breaker Products in the switchgear group are devices that monitor the flow of current in the cable system; when they detect any faults, imbalances, or differences related to current, they stop the electricity. They quickly come into operation even with very small changes. Thus, they prevent serious accidents such as electric shock and fire.
 

How Does a Breaker Trip Happen?
 

There can be several reasons as to why a breaker trip happens and the electrical current gets interrupted. Let's look at some of them:

• Faulty Devices: If any of the electronic devices you are using starts to leak electricity due to a malfunction, the circuit breaker immediately detects it and rapidly cuts off the current for your safety.
• Overloading: The most common reason for a breaker trip in a home setting is overloading. When you operate a high-powered device in your home or use a number of devices together that the electrical system cannot handle, this may cause a breaker trip. If your electrical system is outdated, the likelihood of a breaker trip in such situations may be higher.
• Wiring Issues: Electrical wiring deteriorates over time and can get damaged. Damaged wiring can cause electrical leakage, which can trigger a breaker trip.
• Adverse Weather Conditions: Severe rain, storms, and lightning strikes can damage nearby power lines or substations. This can cause your home's circuit breaker to trip. If you encounter such a situation, it may be safer to wait for the weather conditions to improve before resetting the circuit breaker to its normal position.
• Circuit Breaker Malfunction: Faulty circuit breakers usually do not work at all, meaning they do not trip when they are supposed to. However, sometimes a faulty circuit breaker may trip unnecessarily. A malfunctioning circuit breaker not working correctly can pose a significant risk to your safety. Therefore, it is advisable to have your circuit breaker checked by an electrician regularly, preferably every year.
   

When a breaker trips, you may be tempted to immediately reset it to its normal position to continue using your electronic devices. However, it is crucial to clearly identify the main reason for the breaker tripping and take necessary precautions before resetting it. Otherwise, you may risk your safety.
 

Is a Circuit Breaker the Same as a Fuse?
 

People who are not knowledgeable about electrical installations may think that the circuit breaker and the fuse are different names for the same device. However, the fuse and the circuit breaker are completely different devices.

Fuses are responsible for preventing damage to the electrical circuit in situations such as short circuits and overcurrent. Inside the fuse, there is a wire that heats up and melts when there is a problem with the current. Thus, a short circuit occurs in the system, and the unbalanced current cannot damage other circuit elements. Once the fuse is burned out in this way, it cannot be used again. The fuse must be replaced before electricity is restored.

As mentioned earlier, the circuit breaker, on the other hand, is responsible for preventing situations such as fire and electric shock rather than protecting the circuit. Additionally, a circuit breaker is not replaced unless it malfunctions. It is simply reset to the “ON” position to resume operation.

If you want to ensure the safety of your electrical system, you may prefer to use your residual-current device (RCD) together with appropriate automatic fuses. By exploring various automatic fuse models offered by Günsan, you can easily choose the most suitable product for you and take precautions for unbalanced current situations.

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