Electricians in Chicago

The Main Circuit Breaker Controls Power to Your Entire House

EV Charger Installation | STS Electric
Home Electrical Repairs | STS Electric
STS Electric | Trusted Electricians Chicago
Main Circuit Breaker: A Vital Power Control

The Main Circuit Breaker Controls Power to Your Entire House

Your electrical board is loaded with circuit breakers, running through and through of the administration board. For comfort, the breakers are typically numbered and mapped, with the odd-numbered breakers running down the left half of the board, and the even-numbered circuits along the right. In any case, sitting on the two lines of branch circuit breakers there is a solitary more significant electrical switch that is usually found right on target in the board. In many establishments, this bigger breaker is situated at the highest point of the board, yet relying upon how the fundamental administration board has been introduced, it could be at the base, or even toward one side of a board mounted sideways.

This huge electrical switch is known as the principle breaker, and it assumes a significant job in the electrical framework by offering the methods for detaching capacity to the whole electrical switchboard and consequently closing off capacity to the whole house.

What Is the Difference Between the Main Breaker and Branch Circuit Breakers?

The fundamental electrical switch is remarkably the same then some other breaker, yet it is intended to deal with the expansive amperage heap of the primary feeder wires conveying electrical capacity to the house. Consequently, it will be by a wide margin the biggest breaker in the crate as far as amperage rating. In a couple of more seasoned homes, the fundamental breaker might be appraised as low as 60-amps, however, it’s considerably more typical for the primary breaker to be evaluated for 100-amps, 150-amps, 200-amps—or much more in a couple of expansive homes.

Your primary administration board is intended to bring 240 volts of intensity into your home using two fundamental administration wires, each conveying 120 volts of current. Inside your administration board, these administration wires associate specifically to the fundamental breaker, which at that point circulates shut down through two individual hot buss bars in the administration board. The individual circuit breakers for branch circuits will get their capacity by interfacing with either of these hot buss bars. Circuits for 120-volt circuits interface with one buss bar; circuits for 240-volt circuits associate with both hot buss bars.

Read What our Clients say About STS

slider
User

Terrence C.

Stars

My wife works full time in his job so basically I am the one who manages our home especially for the kids. Recently, I’ve noticed that our lights dimming at random...

User

Neil H.

Stars

We have been using STS Electric for our senior home care facilities for all electrical high and low voltage work including nurse call system...

User

Kate Zehr

Stars

STS really took care of us! Sam and Ana were so attentive and understanding of a very difficult situation. Their advice and expertise was invaluable.

User

James P.

Stars

Great service, on time and very professional. They fixed my office’s wiring quickly and left everything clean.

User

Susan R.

Stars

I am impressed with the quality of work done by STS Electric. They provided solutions that saved us money long term.

User

Michael T.

Stars

Very responsive and affordable pricing. The team was polite and efficient. Highly recommended.

User

Emily G.

Stars

They fixed my home’s electrical issues within hours. Super reliable and respectful team. I’ll definitely call them again.

User

Robert F.

Stars

Friendly team and excellent follow-up after the service. They even checked back a week later to make sure everything was good.

User

Amanda L.

Stars

Outstanding service. The electricians were professional, friendly, and ensured everything was working perfectly before leaving.

Our Commitment to Excellence

STS Electric Contractor is a premier electrical contractor in Chicago, Illinois with design build capabilities providing a full range of service to residential, commercial and industrial communities. STS ELECTRIC is an electrical contractor in Chicago with a commitment to providing efficient services to our clients, who value quality and innovation. All our products, installations and maintenance are backed by a comprehensive warranty.

Electrician Chicago | Trusted Local Experts

A+ BBB Accredited

Electrician Chicago | Trusted Local Experts

100% Satisfaction Guarantee

Electrician Chicago | Trusted Local Experts

Fast Response Times

Electrician Chicago | Trusted Local Experts

Fully Licensed, Insured & Bonded

Electrician Chicago | Trusted Local Experts

24/7 Emergency Service

Electrician Chicago | Trusted Local Experts

Free On-Site Estimates

Electrician Chicago | Trusted Local Experts

Senior & Military Discounts

Electrician Chicago | Trusted Local Experts

ICC-Certified EV Charger Installer

Electrician Chicago | Trusted Local Experts

State-of-the-Art Diagnostic Tools & a fully stocked inventory

I am excited to complete this review. A big thank you goes out to Sam and his team for the electrical work they completed for my dad. I really appreciate how Sam showed concern for my father and worked hard to make sure he was happy with the work. He also came back a few times to make sure things were working properly. I recommend STS Electric not only for the work, but for the care they show to people as that is truly a treasure. Again, thank you Sam and team!
Sam, Ana, and Francisco & team were communicative, thorough, and did incredible work at my properties (2) over the past months. The inspector's comments were "this is how it should be done" - that's incredible praise. Cannot recommend more! 10.0 A++
Sam from STS responded right away when the power went out in our unit. He was clear, kind and fixed the problem quickly. Highly recommend!
Sam and team did a great job of diagnosing the issue, communicating and solving in a timely manner. Very pleased with how meticulous and professional the team was
Fantastic service! Took care of an emergency repair rapidly and seamlessly! Will definitely use them again as needed!
STS Electric did great work rectifying the problems I had with my home electrical system. They installed a new panel, checked out all the outlets, corrected the grounding situation, and prepared my house for the eventuality of installing an EV charging station. The workers—Juan, Jose, Abel and others—were thorough and highly focused on their work. STS even got ComEd on the site when they saw the need! And I have to send kudos to Anna for her patience and helpfulness throughout the whole process. I recommend STS Electric to anyone in need of electrical work!
STS Electric exceeded my expectations with their Level 2 EV charger installation. Sam, the estimator, provided a transparent bid that was slightly higher than others but reflected their commitment to quality without cutting corners—I’m glad I chose them. Ana in customer service was fantastic, handling invoicing and ensuring everything was set up perfectly for my rebate application. The installation team delivered quick turnaround, excellent service, and open communication throughout. Highly recommend for transparency and quality workmanship!
STS was very professional, worked hard and consistently; they showed up on time and did excellent work. Sam communicated in a friendly helpful manner and followed through to make sure I understood what was happening and offered additional Assistance to ensure we had the best experience possible. I am so pleased with the outcome and would highly recommend them!
We had a complex lighting plan for our kitchen and living room, and this team executed it perfectly. They didn't just install the fixtures; they ran new, dedicated circuits from the breaker box to ensure everything was up to code and could handle the load. The installation of the lights was so clean and professional—all wires are completely hidden. It’s not just functional; it’s a work of art. Highly recommend for any serious electrical work!
Absolutely amazing service! I called STS in the morning, and they had someone at my door by lunchtime. The issue was fixed quickly and efficiently—before I even had to pick up the kids from school! That kind of fast and reliable service is hard to find these days. Highly recommended!

What Can We Do For You?

Issue

Details

Customer

Address

Confirm

Thank You

We are here for you 24/7

For immediate assistance, please reach us at (773) 721-1111.

Please provide as many details as you can on the next two screens.

Tell us about your issue or what you are trying to accomplish?

We'll send you a text message to confirm your appointment and to provide you with other updates.


< >
Sun
Mon
Tue
Wed
Thu
Fri
Sat
  • Our dispatcher will contact you with the earliest available arrival window. For a sooner appointment, please call (773) 721-1111

Issue:

Service:

Email sent successfully

We've received your booking and will send you a confirmation of your appointment window. One of our friendly office dispatch coordinators will also reach out to you directly to confirm the exact time of your appointment.