
Circuit breakers are essential safety devices in homes and buildings that monitor electrical currents and automatically interrupt the electrical flow in the event of an overload or short circuit. While there are various types of circuit breakers, the three main types are standard, GFCI, and AFCI. Some models have dual functionality, and each handles different amp capacities and operates in different locations in the home. While circuit breakers are built to last for decades, they may sometimes need to be replaced. For example, if there are burn marks around the circuit breaker or it emits a burning smell, it is time to replace it. When it comes to identifying a specific breaker, such as one with a blue handle, it's important to consider the brand and model. In the case of Zinsco R38 and RC38 circuit breakers, a 15-amp breaker typically has a blue handle.
| Characteristics | Values |
|---|---|
| Type | Circuit breaker |
| Function | Standard, GFCI, AFCI |
| Amperage | 15-200 |
| Voltage | 120V/240V or 240V |
| Application | Large appliances such as dryers and water heaters |
| Replacement | Requires a licensed electrician |
| Safety | Interrupts electrical flow in case of overload or short circuit |
| Zinsco R38 | Tandem 20-amp circuit breaker with independent handles |
| Zinsco RC38 | 2-pole half-size circuit breaker with tied handles |
| Color | Blue handles indicate 15-amp amperage |
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What You'll Learn
- Blue breakers are dual function, with both AFCI and GFCI capabilities
- Blue breakers are 15-amp Zinsco R38 and RC38 models
- Blue breakers are used to indicate arc fault + ground fault
- Blue breakers are safe to use, but can be replaced if showing burn marks
- Blue breakers are a common feature of Bryant breaker panels

Blue breakers are dual function, with both AFCI and GFCI capabilities
In electrical wiring, blue breakers are dual-function circuit breakers with both arc fault circuit interruption (AFCI) and ground fault circuit interruption (GFCI) capabilities. AFCI breakers protect against fires caused by arcing faults in the circuit wiring, whereas GFCI breakers protect against electric shock by interrupting the current to a circuit when it detects a loss of current. This loss of current may be due to an overload, short circuit, or a line-to-ground fault, where an unwanted path forms between an electrical current and a grounded element.
Dual-function circuit breakers are essential in providing comprehensive protection against electrical hazards. They are especially useful in areas where both fire and shock risks are present, such as finished basements, hallways, closets, kitchens, laundry areas, and bedrooms.
The colour-coding of circuit breakers is important for quick identification and replacement. In the case of Zinsco circuit breakers, blue handles indicate a 15-amp capacity. However, it is important to note that the colour-coding system may vary across different brands or models of circuit breakers. Therefore, it is always advisable to refer to the specific manufacturer's guidelines or seek the assistance of a licensed electrician.
While colour can be a helpful indicator, it is not the only factor to consider when identifying or replacing a circuit breaker. Other factors, such as the model, type, and ampere rating, are also crucial in ensuring the proper functioning and safety of the electrical system. It is recommended to consult a qualified electrician or refer to the specific guidelines provided by the manufacturer for the particular breaker in question.
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Blue breakers are 15-amp Zinsco R38 and RC38 models
If you're looking for an electrical breaker with a blue handle, you're likely referring to either the Zinsco R38 or Zinsco RC38 models. These are both types of circuit breakers, which are essential safety devices in your home. They monitor the electrical current and automatically interrupt the electrical flow in case of an overload or short circuit, helping to prevent electrical fires.
The Zinsco R38 and RC38 models are 15-amp circuit breakers, which is one of the most common amperages for these models. They typically range in capacity from 15 to 30 amps, and each handle works independently to save room in your panel. These breakers are sometimes referred to as "cheater breakers".
The Zinsco R38 is a tandem 20-amp circuit breaker, meaning it has two single-pole breakers with one handle and a shared trip mechanism. It can supply 120V/240V or 240V to a circuit. On the other hand, the Zinsco RC38 is a 2-pole half-size circuit breaker, which means the handles are tied together for 240 volts.
It's important to note that circuit breakers are built to last for decades. However, if you notice any burn marks or a burning smell coming from your circuit breaker, it's time to replace it. Installation or replacement of circuit breakers is typically left to licensed electricians due to the high voltage involved.
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Blue breakers are used to indicate arc fault + ground fault
Blue breakers are used to indicate arc fault circuit interrupters (AFCI) and ground fault circuit interrupters (GFCI). These breakers are designed to protect against two types of electrical faults: arc faults and ground faults.
AFCI breakers are responsible for detecting arc faults, which are electrical arcs that can occur due to damaged or faulty wiring, loose connections, or other issues. These arcs can generate high temperatures, potentially leading to electrical fires. AFCI breakers continuously monitor the electrical current and can detect abnormal arcs, interrupting the power to prevent a potential fire hazard.
On the other hand, GFCI breakers focus on protecting against ground faults. A ground fault occurs when electricity takes an unintended path, such as coming into contact with a grounded element or a person. This can lead to serious electrical shocks and even electrocution. GFCI breakers are designed to quickly detect these faults and shut off the power, significantly reducing the risk of injury or fatality.
The combination of AFCI and GFCI protection in blue breakers makes them a versatile and important safety feature in electrical systems. They are commonly used in areas where both types of faults are a concern, providing comprehensive protection against potential electrical hazards.
It is important to note that while blue breakers offer dual protection, other breakers may also provide AFCI or GFCI functionality with different colour indicators. It is always essential to properly identify the type of breaker and its specific functionality before installation or replacement, as incorrect usage can compromise safety. Consulting a licensed electrician is recommended to ensure compliance with electrical codes and safety standards.
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Blue breakers are safe to use, but can be replaced if showing burn marks
Blue breakers, like all circuit breakers, are designed to last for decades. They are generally safe to use and are an essential safety feature in your home. They monitor the electrical current and automatically cut off the electrical flow in the event of an overload or short circuit, reducing the risk of electrical fires.
However, if you notice any burn marks on your blue breaker or if it emits a burning smell, it is an indication that it needs to be replaced. Burn marks or a burning smell could indicate that the breaker is not functioning properly and may pose a safety hazard. It is recommended to have a qualified electrician inspect your breaker and perform any necessary replacements due to the high voltage involved.
One example of a blue breaker is the Zinsco R38, a tandem 20-amp circuit breaker with independently functioning handles. The 15-amp version of this breaker features a blue handle, while the 20-amp and 30-amp versions have red and green handles, respectively.
If you are experiencing frequent issues with your blue breakers, such as repeated tripping or burning, it may be worth considering a replacement. While blue breakers are generally safe, some users have reported issues with specific brands, such as Bryant and Eaton, where the breakers have melted or caused panel damage. In such cases, it is advisable to consult a qualified electrical contractor to evaluate your panel and recommend suitable replacements to ensure the safety of your home and family.
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Blue breakers are a common feature of Bryant breaker panels
Blue breakers are commonly found in Bryant breaker panels. These coloured breakers are often the subject of emergency service calls, as they have been known to cause panels to melt and fuse together. This is due to a loose connection between the circuit breaker and the bus bar, which causes arcing between the metals. While the exact cause of this issue is unknown, it is believed to be a result of defective materials or a bad batch.
To prevent this serious safety hazard, it is recommended that panels with coloured circuit breakers be inspected by a qualified electrical contractor and serviced regularly. If damage is found, the only permanent solution is to replace the entire panel and breaker. Moving the circuit to a new breaker on a different part of the bus bar can be a temporary solution if a full panel replacement is not possible.
It is worth noting that the colour of the breakers in Bryant panels indicates when they were made and their amp ratings. Blue breakers, specifically, denote 15-amp breakers. While this colouring system may be useful for identification purposes, it is crucial to prioritise the safety risks associated with Bryant coloured breakers.
Overall, blue breakers are a common feature of Bryant breaker panels, and while the colouring may provide some information about the breaker, it is important to be aware of the potential hazards associated with these coloured breakers and to take the necessary precautions to ensure electrical safety.
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Frequently asked questions
A 15-amp Zinsco R38 or Zinsco RC38 electrical breaker has a blue handle.
A blue-handled breaker typically indicates a 15-amp capacity, while a red-handled breaker indicates a 20-amp capacity.
A blue-handled breaker is usually a dual-function breaker (both AFCI and GFCI), while a green-handled breaker is AFCI only.
A dual-function breaker, indicated by a blue handle or sticker, combines the functions of both an AFCI (Arc Fault Circuit Interrupter) and a GFCI (Ground Fault Circuit Interrupter). AFCI breakers protect against arc faults, while GFCI breakers protect against ground faults and overload currents.










































