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When we are talking about electricity, one of the most important devices on your property in your circuit breaker. This is an important device that you need to not only have in your home or office, but you should know some basics on how to use your breaker. Without having this knowledge, you could face dangerous or harmful events in the future.

Essentially, a circuit breaker is an electrical switch that can be used to protect your electrical circuit from damage. When your electrical circuit has an overload, a short circuit, or overcurrent problems, this device will interrupt the current flow in your property. It has protective relays that will detect any faults on the electric current.

Circuit Breaker Components

Before you try to use your circuit breaker, you need to know all the necessary components inside this device. There are some basic components that you will find in this circuit breaker. Here are some necessary parts that you need to know.

circuit breaker wiring diagram

a. Frame

This is an important part of the circuit breaker and can help you identify your own breaker or someone else’s in the future. This product is the box that protects all internal parts of the circuit breaker. When you install this part, you are going to protect your circuit breaker from any outside materials. The frame is usually made from high-quality, stainless material so it can last for a long time. It can also prevent the accumulation of dirt on the circuit breaker. When you look at the market, you can find several types of frames that are made from molded insulating materials or metal.

circuit breaker box being unlocked

b. Operating mechanism (main breaker switch)

When we are talking about circuit breakers, we can’t breeze over the main purpose of the device. This operating mechanism is an important part of this unit and is usually in the shape of a lever or on/off switch. It can provide a means of closing and opening the circuit breaker. When you want to operate this device, you need to find where on your box it is located and what position it is in. It is usually located in the front part of the circuit breaker. There are two types of operating mechanisms that are available in most circuit breakers, including a two-step stored energy and over-toggle system.

Circuit breaker safety switch red

c. Labels

A circuit breaker usually contains several labels or contacts inside the device. This important part of the circuit breaker should be maintained properly, so it can last for a long time. Properly labeling each contact is crucial in an emergency situation so make sure you use clear language and handwriting when applying labels inside of your circuit breaker. Most contacts are commonly used to show the user what device or part of the home or office is being controlled by that associated switch.

Label on a Circuit Breakers

d. Arc Extinguisher

This is another important part of the circuit breaker. When this circuit breaker detects any faults or problems, it will extinguish the arc immediately. This is a safety device that can be used to prevent hazards due to faulty electrical devices. This part will play an important role in the circuit breaker by using six different methods, including minimum oil, puffer, magnetic coil, arc chute, vacuum interrupter, and also SF6.

e. Trip Unit

When you take a look at our circuit breaker, we are going to find this part in the device. This part will open the operating mechanism in the circuit breaker. It will be triggered by certain events, such as short circuits or prolonged overload. Two different types of trip units are available today, including electromechanical trip units and electronic trip units. Both devices are very useful to provide short circuit and overload protection for your electrical devices.

Call an Expert

We always recommend you called a trained professional for any electrical work. Experts like Santella Electric can assure safety and efficiency when installing your circuit breaker. Contact us today!

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Areas We Serve

Fairfield County: All along the Gold Coast, up to New Milford, Santella Electric, Inc. covers all of Fairfield County, CT. Connecticut is our home and we love serving the residents of the Nutmeg State. We are headquartered in New Canaan and have a full fleet of trucks all over the county at any given time. Fairfield County trusts Santella Electric!

Westchester County: From Pound Ridge to Mount Kisco, we love serving Southern New York. Many of our technicians reside in Westchester County and can be counted on by your family or business both day and night.

New Canaan
Pound Ridge, NY
Cos Cob
South Salem, NY
Mount Kisco, NY

& all of Fairfield County!


Google Reviews

Santella Electric
Based on 95 reviews
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Aimee ShieldsAimee Shields
15:54 21 Nov 22
We had a fantastic experience with Santella. Tony came to our house and was incredibly knowledgable, professional, and friendly. He not only knew exactly what to do, he also consulted me for decisions about how to position all my new fixtures and outlets. As a person who really cares about the details and aesthetic, I appreciated that more than I can say. A few of our projects were tricky due to our house layout, especially adding outdoor outlets, but Tony worked hard to make it all work and look good. I'm very pleased with our updated lighting/power and will definitely ask for him again next time we call Santella!
Brian StapletonBrian Stapleton
00:24 19 Nov 22
Tony at Santella Electric is the best. Professional, responsive, courteous and intelligent. I trust his work and highly recommend him.
Jan HilgemanJan Hilgeman
13:00 19 Oct 22
This we our first time using Santella Electric at our new home. The office personnel were responsive and friendly, and we loved the electrician who came to troubleshoot and do the repairs we need. Courteous, friendly, respectful and resolved the problem easily. He took the time to explain the problem so I could understand it.
Karin SchrammKarin Schramm
14:31 07 Oct 22
Johan was on time, professional & explained all the work he did. Thank goodness, he had the circuit breaker’s we needed + the updated GCFI outlet for the kitchen. Now, my Mom can use her stove, oven, washer & dryer, again. SO grateful.