• General Boxes

      General Boxes

      In-stock distribution boxes, general in sizes, flexible in use, eligible to protection categories.

      customized box

      Customized Boxes

      Made-to-measure distribution boxes in a variety of materials, types and ratings.

      accessories main


      Mounting plates, locks, racks, cables, brackets…everything to empower your enclosure system.

  • About

How Long Do Circuit Breakers Last?

April 19, 2024

Hey there! Ever wondered how long the circuit breakers in your Eabel distribution box will last? You’re not alone. It’s a common question with an interesting answer. Let’s dive into what affects their service life and how you can get the most out of them.

The Lifespan of a Circuit Breaker

Circuit breakers are the unsung heroes of our electrical systems, designed to protect us from electrical overloads and short circuits. But like all heroes, they don’t last forever. On average, a circuit breaker can last anywhere from 30 to 40 years. That’s right, with proper care and a bit of luck, these devices can serve your electrical needs for decades.

Circuit Breaker 04

Factors Affecting Service Life 

Several factors can influence the service life of circuit breakers in Eabel’s distribution boxes:

  • Electrical Load: Frequent exposure to high loads or overcurrent events can stress the breaker, leading to wear and tear.
  • Operating Environment: Conditions such as high humidity, extreme temperatures, and corrosive atmospheres can affect the mechanical and electrical components of the breaker, potentially shortening its lifespan.
  • Quality of Maintenance: Regular maintenance, including inspection, cleaning, and testing, can significantly extend a breaker’s service life by identifying and rectifying issues before they lead to failure.
  • Manufacturing Quality: High-quality materials and manufacturing processes are critical for ensuring the durability and reliability of circuit breakers. Eabel’s commitment to quality in its distribution boxes and breakers ensures a baseline of excellence in performance and longevity.
  • Switching Frequency: The frequency with which a breaker is opened and closed can also impact its service life. Frequent operations can cause mechanical wear, reducing its operational lifespan.

Circuit Breaker 01 1

Signs Your Circuit Breaker Is Going Bad 

Circuit breakers are the backbone of household electrical safety. They are designed to prevent electrical fires and appliance damage by automatically shutting off the power when a circuit overload or short circuit occurs. However, like any mechanical device, circuit breakers can wear out over time. Recognizing the signs of a failing circuit breaker is crucial for maintaining the safety and functionality of your home’s electrical system. Let’s delve deeper into these warning signs.

Frequent Tripping

Frequent tripping is one of the most obvious signs that a circuit breaker may go wrong. While it’s normal for a breaker to trip occasionally—especially if you’re plugging in too many high-wattage devices into one circuit—if you find that a particular breaker trips regularly without an apparent overload, it could indicate that the breaker itself is failing. This frequent tripping can be due to internal damage or wear that prevents the breaker from handling its intended load, even within safe limits.

Difficulty Resetting

After a circuit breaker trip, you should be able to reset it with a simple flick back to the “on” position. However, if the breaker immediately trips again or you cannot reset it, this is a clear sign of trouble. Difficulty resetting a breaker can indicate a severe wiring issue or that the breaker itself is damaged and unable to maintain the circuit.

Physical Damage

Visual inspection can often reveal problems with a circuit breaker. Signs of burning, such as scorch marks or a burnt smell from the breaker box, indicate that the breaker has been exposed to excessive heat due to overloading or a short circuit. Additionally, any visible damage to the breaker, like cracks in the casing or signs of melting, suggests that the breaker is no longer safe to use and needs immediate replacement.


The age of a circuit breaker can also be a factor in its reliability. As mentioned, circuit breakers typically have a lifespan of 30 to 40 years. If your home’s electrical system is aging, the breakers may be nearing the end of their useful life. Older breakers may need to trip more readily during an overload, posing a significant safety risk.

Unusual Noises

Circuit breakers should operate quietly. Hearing buzzing, hissing, or crackling sounds from the breaker box is a sign that something is wrong. These noises can indicate loose or faulty wiring or suggest that the breaker itself is malfunctioning. In either case, unusual noises from the breaker box should prompt an immediate call to an electrician.

Breaker Feels Hot to the Touch

While it’s normal for electrical equipment to generate a small amount of heat, a circuit breaker that feels hot to the touch is cause for concern. Excessive heat can indicate that the breaker is overloaded and struggling to break the circuit, which could lead to failure.

When to Replace Your Circuit Breakers

If you’re noticing any of the above signs, call in a professional electrician for a check-up. And remember, even if your breakers seem to be in good shape, their age alone can be an excellent reason to consider replacement, especially if they’re approaching or have surpassed the 30-year mark.

circuit breakers in Eabel’s distribution boxes

Maximizing Service Life 

To ensure the longest possible service life for circuit breakers in Eabel’s distribution boxes, consider the following strategies:

  • Proper Sizing and Installation: Ensure that circuit breakers are correctly sized for the circuits they protect and are installed by qualified personnel to avoid unnecessary stress and potential failure.
  • Regular Maintenance: Implement a maintenance schedule that includes visual inspections, mechanical operation tests, and electrical tests to detect and correct issues early.
  • Environmental Controls: Use climate control or protective measures in extreme environments to minimize the breakers’ impact.
  • Quality Assurance: Opt for high-quality breakers from reputable manufacturers like Eabel to ensure reliability and durability.
  • Upgrade When Necessary: Consider upgrading or replacing older or heavily used breakers with modern equivalents that offer improved performance and longer service lives.


Circuit breakers are crucial in keeping our homes safe from electrical hazards. While they can last up to 40 years, their lifespan can vary based on several factors. By checking for signs of wear and tear and understanding when it’s time for a replacement, you can ensure your electrical system remains safe and reliable for years.

Understanding the service life of circuit breakers in Eabel’s distribution boxes is about knowing what affects them and how to care for them. It’s a combination of choosing quality, maintaining well, and being smart about usage. Follow these tips to ensure your electrical system is safe, efficient, and long-lasting.

Contact Us

    More Articles

    Explore the top electrical control panel manufacturers in Singapore, including Eabel and Schneider Electric, offering innovative solutions for diverse applications in industrial, commercial, and residential sectors.
    The distribution box should not be installed in a humid, steam, or corrosive place. It is generally installed behind the door or at a place where it is easy to open and close the upper part of the shoe cabinet by the door.
    Discover the essentials of selecting electrical enclosures for industrial use. Learn about types, materials, standards, and tips for making the right choice.

    What Can We Do To Help?

    If you would like information about pricing and delivery, our sales team will contact you shortly, with everything you need for your project.

    Your E-Abel solution providers will be happy to give you any engineering advice to your industrial business, flexible / practical / remarkable.


      logo red

      Get More Benefits Since Submit The Info Form

        *We respect your confidentiality and all information are protected.

        Contact Us Right Now, Get Reply Today.

        Leo Lu

        I’m Leo, the head of sales team at E-abel. Me and my team would be happy to meet you and learn all about your business, requirements and expectations.

        Claire Zheng
        Carson He
        Paul Cao

        Get in Touch with E-Abel

        Send us an email, give us a call, or use our contact form below. We look forward to being of assistance.

          Customize Your Enclosures Project

          Submit your enclosure specifications below, and one of our engineers will contact you in 12 hours.

            Need Component Assembly?