What is a Class C Fire Extinguisher Used For?

What is a Class C Fire Extinguisher Used For?

What is a Class C Fire Extinguisher Used For?

Because inevitable fires are severe, not all firefighting equipment works nicely on all types of fires. For example, electrical blazes are challenging to put out and need to be handled carefully. Please continue reading to learn more about the unusual difficulties that electric, or Class C fires, provide and the Class C fire fighting equipment that can be used to extinguish them.

What is a Class C fire?

A class C fire refers to one that started because of an electrical element that was activated. When an electrical component is “energized,” it signifies that it is linked to a power origin, whether it be an electrical device, cable, gadget, etc. Faulty wiring, a static shock, breakage to electrical lines, overloading electrical outlets, heated or supercharged devices, etc., can cause Class C fires. The power is a constant ignition source if the device is linked to its power source. 

Class C fires are possible whenever there is wired or electrically charged equipment. Electrical equipment that is energized is involved in Class C fires. Fire extinguishers with a C grade are made to be used on fires involving electrified electrical gear. Class C fires cannot be put out using water or water-based extinguishing products because they carry electricity and could electrocute the person using the sprayer. A Class C type on an extinguisher indicates that the agent won’t execute electricity. 

Class C fires are especially deadly since the risk persists even after the power pool is turned off. There’s also a possibility of electrocution up until that point. Class C fires cannot be put out with water or water-based extinguishing agents because they carry electricity, which could spread the electricity and the source of the fire and possibly kill the person using the extinguisher. A Class C type on an extinguisher indicates that the agent won’t manipulate electricity. But before fighting the fire, it’s essential to turn off the power source. For example, an electrically-energized element-related fire is put out with a Class C fire extinguisher. When the fire’s power pool is cut off, it ceases to be of class C fire and is instead classified into one of the other classes. The power supply can only be removed.

Type of fire extinguishers rated as Class CWhat is a Class C Fire Extinguisher Used For?

Because of their specific dangers, using only a Class C fire blanket is crucial to put out Class C flames. With one exception, which will be detailed shortly, water-based extinguishers are inefficient and hazardous, as was already indicated. Fuel, heat, and oxygen—the three features of the fire triangle—can be diverged by the substances used in Class C extinguishers. By doing this, the flames & heat can be put out even if the energy and ignite sources are still attached, hopefully for long sufficient for the power supply to be disconnected. The Class C sprayer can be exchanged for a more potent extinguisher if the power system is cut off and the fire has spread to other regions and fuel sources.

Class C extinguishers fall under the following categories:

Carbon Dioxide:

By smothering the fire and removing the oxygen component, CO2 extinguishers put out fires. Due to how chilly the discharge is, they also remove heat. Class B fires can also be put out with CO2 fire extinguishers.

Clean Agent:

Clean agent extinguishers use halon and halocarbon chemicals that put out Class C and B fires and occasionally Class A. The clean agents stop the chemical reaction within the fire triangle and eliminate the fire’s heat, much like dry chemical extinguishers. The main distinction between a clean agent and an absorbent is that the former leaves no trace and can reach and penetrate challenging-to-see places.

Dry Chemical:

These extinguishers put out fires by stopping the chemical process in the fire triangle. The versatile dry chemical extinguisher can be used on Class A flames, while the conventional extinguisher is certified for Class C and B fires.

Water Mist:

A more recent invention, the water mist sprayer, can prevent electrical threats without putting users at risk of electric shocks. This makes it superior to regular water-based extinguishers. In addition, these extinguishers are categorized for both A and C fires and function by eliminating the heat component of the fire triangle.


Because the extinguisher uses de-ionized water, which does not transmit electricity, these are suitable for Class C fires. Additionally, the water is presented as a mist rather than a stream, which improves the cooling and sopping effects and lessens the dispersal of burning elements. It should be emphasized that even after the fire has been put out, there is still a risk of fire and electrocution as soon as the defective electrical component or element is connected to the power source. The extinguishing agents may lose effectiveness if enough time passes, and the fire may rekindle. The location will be safe once the power supply is shut off and the fire is put out. It’s crucial to remember that even after the fire has been put out, there is still a risk of fire and electrocution as soon as the defective electrical equipment is still attached to its power generator.


What do the various fire extinguisher color codes mean?

Color codes on fire extinguishers identify the type of spray they are. On a ring at the extinguisher’s top, these are shown. They serve to facilitate and accelerate identification for the user. The following are the codes:

Each extinguishing material has a unique color code:


For water, use red; for foam, use cream; for dry energy; and for carbon dioxide, use blue. A fifth color—yellow—is added for the brand-new Wet Chemical fire extinguisher.

Are there any all-purpose fire extinguishers?

Although there are a few exceptions, a dry chemical extinguisher can be used to put out the majority of flames. All-purpose extinguishers are not yet available.

What happens if a fire extinguisher inadvertently sprays you?

If you are unintentionally sprayed, look for warning labels on the fire extinguisher’s bottle. Some of them may be irritants, so if you’re concerned, you could visit a doctor. However, with most people, it could be a minor inconvenience (pressurized water, you’d get wet). With little difficulty, the extinguisher should be rinsed or dusted.

Where should Class C fire extinguishers be located?

Class C fire extinguishers should be located in areas where there is a risk of electrical fires, such as near electrical panels, computers, and other sensitive equipment. They should also be clearly marked and easily accessible in case of an emergency.

Can Class C fire extinguishers be used on other types of fires?

While Class C fire extinguishers are designed specifically for electrical fires, they can also be used on other types of fires, such as Class A (ordinary combustibles) and Class B (flammable liquids and gases) fires. However, it is important to note that other types of fire extinguishers, such as Class A and Class B extinguishers, may be more effective for certain types of fires and should be used in those situations.