What Size Breaker for an EV Charger?

An EV charger needs various components for its mechanism. One of the important components is its size breaker or circuit breaker. Which is designed to control the current flow of the EV charger. So, the question is ‘What size breaker for an EV charger?’ is vital to learn for EV owners.

It depends on the onboard capacity of the EV charger, the higher capacity will require higher amps and, as a result, a higher amps of size or circuit breaker. For instance, an EV charger with a 7 kWh onboard capacity will work with a 32 amp size breaker. Also, wiring capacity and local electrical code have an impact on the size breaker amps.

An interesting fact is that Bangladeshi EV users now can purchase an EV charger from CrackPlatoon. They are a leading EV charging station supplier in Bangladesh.

There is a lot more to know about the complex relations of EV chargers with size breakers. So, join us as we explore the importance of size breakers in EV chargers, how to determine the size breaker for EVs, different types of size breakers, and factors that influence the amps. Let’s begin!

Importance of Size Breaker of EV Charger

For a proper flow of current size, breakers are an important component for EV chargers. The functionality of a size breaker or circuit breaker is to control the correct amp flow to the device. When an overload flows they will act to protect the charger.

They prevent overheating of electrical wiring during the charging process, prolonging the life of both the charger and the wiring. Adapts with the EV charger rating making them essential for the EV charging process.

Factors to Consider Before Choosing a Size Breaker

There are plenty of key factors and considerations that are required to know before choosing a size breaker for the EV charger. It will ensure safe, efficient, and useful charging. These factors have an equal impact on determining the right size breaker for your EV charger. Here are the factors briefly described.

Charger Rating

EV chargers are generally rated in kWh, representing the working capacity of the charger. Also, the voltage of the electric circuit is related to this equation. Equations tell us by dividing the kWh with Voltage we get the amount of amps required for the device.

So, in 240 Volt, the EV charger rating is 7.7 kWh then the EV requires 32 amp to flow the proper electricity. Therefore a minimum 32 amp of size breaker is needed for this EV charger.

It is recommended by the professional to choose slightly higher amps than the required amps of the circuit breaker for safety. We will explain about it in later sections. So, the charger capacity or rating is important for determining the EV charger size breaker capacity.

Local Electrical Code

The local electrical code also has an impact on determining the size breaker capacity of the EV charger. EV charging Bangladesh guidelines suggest following the IEC international policies for installing EV charging stations as well as for selecting the right size breakers for EV chargers.

Load Calculation

Also, load calculation is a critical factor in determining the size of a breaker for an electrical circuit, including EV chargers. By assessing the total electrical load on the circuit, one can ensure to prevent overloads and reliability during charging. So, accurate load calculations are essential for selecting an appropriate size breaker.

What Size Breaker for an EV charger?

As discussed, the charger’s rating, your load of home electrical capacity, and the local government guidelines influence the size breaker’s amps of the EV charger. For a public EV charger when the kWh and voltage are increased the amps amount will change accordingly.

A correctly sized breaker will prevent electrical overload, and safeguard the EV charging station and the home’s electrical system. It’s essential to consult a professional electrician to determine the most suitable breaker size for your specific setup.

Penetrating these factors will provide knowledge about what size breaker for an EV charger is required. As the importance is immense, finding the right amps for EV chargers should be taken seriously by EV owners.

Each EV charging station in Bangladesh has specific power requirements, usually mentioned in its specifications. To select the right breaker size, one must understand the charger’s maximum amperage and voltage. Which we have shown earlier.

Typically, a breaker should be rated for at least 125% of the charger’s maximum current draw to ensure safe operation. So, if your EV charger has a 30 amp capacity you will need 40 amps of size breaker. Which is around 125% of the EV charger capacity. Here is a short table for the requirement of the size breaker according to this method.

This is recommended by the professional to have a safe and secure current flow with the circuit breaker to the EV charger. CrackPlatoon’s EV charger’s are well-designed to bear the charging capacity of all EVs. Contact them for a better experience of EV charging in Bangladesh.

Different Types of Size Breakers for EV Chargers

As EV chargers vary in their power requirements, they imply the necessity of different types of circuit breakers. It is important to choose the right breaker to ensure both safety and efficiency in charging. So, different breakers are designed to match the varying needs of EV charging stations. Here we briefly described them.

Standard Circuit Breakers

The most common circuit breaker is usually used in residential EV charging setups. Typically ranges from 15 to 50 amps, suitable for Level 1 and some Level 2 EV chargers. They provide basic overcurrent protection, ensuring safe operation for lower power EV charging stations.

For homes with existing electrical systems, these breakers are often a practical choice. They integrate well without needing significant upgrades to the electrical panel. However, they may not be sufficient for higher-power Level 2 EV chargers that require more amperage.

GFCI Breakers

For outdoor or garage-based EV chargers Ground Fault Circuit Interrupter (GFCI) breakers are used. They offer protection against electrical shocks, a vital safety feature in potentially moist environments. GFCI breakers are more sensitive than standard ones, they can detect and prevent ground faults.

These breakers are slightly more expensive. They are often mandated by building codes for outdoor electrical installations. Choosing a GFCI breaker for an EV charging station in Bangladesh can significantly improve electrical safety, especially in exterior settings.

High-Ampacity Breakers

They are designed for powerful Level 2 and Level 3 EV chargers. These breakers can handle 60 amps or more and can be accommodated in fast-charging stations’ for higher energy demands. It is essential to use these in commercial settings or homes with high-power charging needs.

Their installation may require electrical system upgrades and is best suited for newer homes or those with upgraded electrical panels. Compatibility check with your home’s electrical capacity is key when considering high-ampacity breakers.

Different types of breakers cater to the diverse requirements of EV chargers, ranging from standard residential models to high-powered commercial ones. The requirement of the EV charger will determine the right type. So, consulting with a professional is always recommended to ensure the correct and safe choice.

The Importance of Hiring a Professional While Installing Size Breaker

The installation process of an EV charger, such as a Crackplatoon EV Charging station, is a complex job to be done. Therefore doing it by a professional is highly important for a safe and secure connection.

Also, for Bangladeshi EV users, the EV charging guideline strictly suggests hiring a professional for electrical connection. This expertise is vital for both the longevity of the charging station and the safety of the household.

Safety Assurance

This minimizes risks associated with electrical installations and ensures that the size breaker meets safety standards aligning with the Crackplatoon Charging station. This precaution prevents electrical fires, shocks, and other hazards, safeguarding the property and loved ones.

Professionals have the training to identify potential risks in electrical systems. Their expertise is crucial in preventing accidents during and after installation. Trusting a professional with EV charger installation ensures peace of mind regarding safety.

Regulatory Compliance

They are well-versed in local and national electrical codes. Their knowledge is crucial for installing a size breaker that complies with legal standards. Compliance issues are not just about following the law; it’s about ensuring safe operation.

Failure to comply with these regulations can lead to legal complications. It may also affect insurance claims in the event of an electrical mishap. Hence, a professional’s involvement is key to ensuring that your installation abides by all necessary regulations.

Optimal Performance and Longevity

A professional will ensure that an EV charger, like the Crackplatoon CSL EV charger, operates at its best. The right size breaker installation is vital for optimal performance and longevity of the charging system. This will guarantee the right amount of power without overloading the system.

Also, improper installation can lead to frequent malfunctions and reduced lifespan of the charger. A professional installation maximizes efficiency and durability. It’s a safe investment that pays off by ensuring EV chargers work efficiently for years to come.

Final Thought

The importance of the size breaker or circuit breaker is immense to maintain the EV charger’s condition. They prevent overcharging and overheating as well as maintain the right flow of electricity to the EV charger. So, knowing what size breaker for an EV charger is a must for the owners who are planning to install an EV charger.

We have explained the factors, the equation to determine the amp of size breaker and lastly provided a list by implying the professional recommendation to the required size breaker capacity. While opting for a size breaker keep in mind these factors.

For Bangladesh, we recommend the EV charger from CrackPlatoon CSL, as their EV chargers have optimal quality and IP54 level standards. Ensuring the safe and secure EV charging in Bangladesh.

The types of size breakers and the importance of hiring a professional electrician are also vital. This will clear the picture and help to make a sound decision while choosing the size breaker. Hope we provide ample information. Enjoy the EV journey!