Circuit Breaker vs. Fuse Box: What’s the Difference?

Shedding light on the better electrical option for your home

A woman turning off a fuse box in her house
Photo: Raquel Pedrosa / Adobe Stock
A woman turning off a fuse box in her house
Photo: Raquel Pedrosa / Adobe Stock
Highlights
  • Circuit breakers use a switch mechanism that trips when overloaded, while fuse boxes contain a single wire that melts when overloaded. 

  • Circuit breakers are reusable and are often found in newer homes, while fuse boxes are single-use and more common in older homes. 

  • Circuit breakers are more expensive to install, but they cost less to repair or replace than fuse boxes.

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Although they serve the same overall purpose, fuse boxes and circuit breakers work in different ways to protect your home’s electrical system. Usually found in older homes, fuse boxes rely on fuses that melt and break the circuit when overloaded, requiring more frequent replacement. 

Circuit breakers, which are standard in modern homes, use a switch mechanism that trips during a fault and can be easily reset without needing new parts. Let’s dive into the differences between circuit breakers and fuse boxes so you can decide which makes the most sense for your home.

Circuit breaker versus fuse box compared visually by stylized illustration

Circuit Breaker vs. Fuse Box

A voltage switchboard with circuit breakers
Photo: romaset / Adobe Stock

While both circuit breakers and fuse boxes are arguably the most essential components in your home, they differ when it comes to visuals and execution. 

Type of DifferenceCircuit BreakersFuses
Mechanism Can be resetMust be replaced
CharacteristicsTrip on overloadBlow when overloaded
Maintenance and DurabilityReusableOne-time use
Convenience and Usability Easy to troubleshootSimpler design
Era of UseUsed in modern homesUsed in older homes

Appearance: Tie

Both circuit breakers and fuse boxes are part of your home’s electrical panel, and they are in a metal service box that accepts power from your utility company. Circuit breakers have rows of small, rectangular switches, and fuse boxes have either glass or ceramic plugs and exposed wiring.

Options and Customizations​: Circuit Breakers

Circuit breakers are available in standard, GFCI, and AFCI (Arc-Fault Circuit Interrupter). They also offer single or dual-functionality and different amp capacities depending on your home’s electrical usage.

Fuse boxes typically contain six to 12 fuses and are available in screw-in (plugs) or cartridges for larger appliances. Fuse boxes come in 60-amp capacity and offer less power than circuit breakers.

Durability: Circuit Breakers​

Circuit breakers are safe and reliable and protect your home from overheating, fires, and short circuits. You can use your circuit breaker until the end of its lifespan or when it requires replacement—usually decades later. However, frequent trips and overloads can wear out the breaker, and they require more comprehensive equipment to operate.

Fuse boxes offer more reliability because it’s easy to switch out blown fuses. But they also age and degrade over time, and you’ll eventually have to replace the unit when it fails or as you require more amperage.

Price​: Fuse Boxes

An electrician installing cables in a fuse box
Photo: Milan / Adobe Stock

Circuit breakers are typically more expensive to purchase and install than fuse boxes. The average cost to replace a circuit breaker box is $1,150.

Fuse boxes are less costly to buy and replace blown bulbs. The cost to replace a fuse box will run between $200 to $2,000.

Ease of Installation: Circuit Breakers

An electrical pro should install both circuit breakers and fuse boxes. Due to wiring, code, permit requirements, and the risk of electrocution, you should hire an electrical professional near you for installation and service.

Remember, fuse boxes are older technology. Ask your electrician if they have experience with this project before beginning.

Ease of Repair: Circuit Breakers

You can reset your circuit breaker yourself by locating the tripped switch and turning it from OFF to ON. If the problem persists or you can’t flip the switch yourself, it’s best to call an electrical pro.

When you blow a fuse, you can find replacement fuses available for a low price at any hardware store. There are different types available depending on voltage levels. You can also replace a blown fuse by yourself—you’ll want to ensure the new fuse has the correct amperage capacity. When you blow a fuse, you’ll need to replace it before resetting your entire electrical panel. However, using incorrect voltage bulbs in the box increases the risk of electrical overload and fires. Fuse boxes houses exposed wiring, which could pose a danger to inexperienced homeowners. Some insurance companies will not cover homes with fuse boxes due to increased fire risk.

Maintenance: Fuse Boxes

You should inspect your circuit breaker every one to three years and perform a routine trip test every three to five years to ensure that all breaker switches are in working order. You can expect to pay $40 to $50 per hour to hire an electrician for maintenance.

Fuse boxes require less maintenance, but you’ll always have to replace a blown fuse before turning on your electrical panel. You can expect to pay between $5 to $10 for a multi-pack of replacement plugs.

Length of Life: Fuse Boxes

Circuit breakers typically last between 30 to 40 years, while fuse boxes can last about 50 years. At this point, both circuit breakers and fuse boxes will require electrical updating and new, modern equipment.

Convenience: Circuit Breakers

Circuit breakers are used in post-1960 homes, and homeowners can restore power with a simple flip of a switch. They provide a ground fault circuit interrupter (GFCI) outlet, which prevents electrical shock. Homeowners can shut off electricity to labeled individual circuits rather than the entire home. The breaker box hides electrical components, making it safe for inexperienced homeowners. Fuse boxes offer 60-amp power, while circuit breakers provide 100 to 200+ amp power

If your home still uses an older fuse box, it might not provide enough power for a modern home. (Your home may have other outdated electrical elements, too.) If you’re regularly experiencing blown fuses, you might consider upgrading to a circuit breaker box that can handle your higher amperage needs.

Frequently Asked Questions

A circuit breaker flipping off when it detects an overloaded circuit isn’t a problem, but flipping the switch frequently can damage it and eventually cause an electrical hazard. If you’re going on a long vacation or leaving your home for the season, you should avoid turning off your circuit breaker to prevent electrical damage to your system.

People who have experienced blown fuse have occasionally tried to fix the problem by placing copper pennies in the fuse box. While they are good conductors of electricity and can seemingly “fix” the issue,  they don’t protect against short circuits or fires. Putting pennies in a fuse box is dangerous—the best solution is to call a professional electrician to fix the problem.

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