What classification is a fire extinguisher?
James Williams
Published Mar 19, 2026
There are four classes of fire extinguishers – A, B, C and D – and each class can put out a different type of fire. Multipurpose extinguishers can be used on different types of fires and will be labeled with more than one class, like A-B, B-C or A-B-C.
Which type of fire extinguisher is used for?
For fires involving cooking oils and fats (a Class F fire), a wet chemical extinguisher can be used. The wet chemical fire extinguisher can also be used on Class A fire, but foam or water extinguishers are more common. Dry powder extinguishers smother fires by forming a barrier between the fuel and source of oxygen.
What kind of fire can Class A extinguishers be used on?
Class A. Class A fires involve ordinary combustible materials, such as cloth, wood, paper, rubber, and many plastics. Extinguishers with an A rating are designed to extinguish fires involving these ordinary combustible materials.
What are Class ABC fires?
This pale, yellow powder can put out all three classes of fire: Class A is for trash, wood, and paper. Class B is for liquids and gases. Class C is for energized electrical sources.
What are the 5 classes of fire extinguishers?
The 5 Classes of Fire Extinguishers
- Class A fire extinguishers.
- Class B fire extinguishers.
- Class C fire extinguishers.
- Class D fire extinguishers.
- Class K fire extinguishers.
- Do you know how to use a fire extinguisher?
Which is Class C fire?
A class C fire refers to a fire that involves flammable gases such as natural gas, petroleum gas, butane, hydrogen, acetylene or propane. These gases are highly combustible and may cause large scale fires and explosions if mixed with enough oxygen.
What are the 6 classes of fire?
There are 6 different classes of fire, and each should be attacked in a different way.
- Class A (Solids) Class A fires are fires involving solids.
- Class B (Liquids) Class B fires are fires involving liquids.
- Class C (Gases)
- Class D (Metals)
- Electrical Fires.
- Class F (Cooking Fats & Oils)
What does ABC mean in fire extinguisher?
Dry Chemical Extinguishers come in a variety of types. You may see them labeled: • “DC” short for “dry chem” • “ABC” indicating that they are designed to extinguish class A,B,and C fires, or • “BC” indicating that they are designed to extinguish class B and C fires.
What are the 5 classes of fire?
There are actually five main types of fires. Fires can be classified in five different ways depending on the agent that fuels them: Class A, Class B, Class C, Class D, and Class K. Each type of fire involves different flammable materials and requires a special approach.
What is Fire Class C?
A class C fire is one in which an energized electrical element is the cause of the fire. Wherever there is charged electrical equipment and/or wiring, there is a risk of Class C fires. Class C fires are particularly dangerous as the hazard remains until the power source is removed.
What is the best extinguisher for Class C fire?
What is the best fire extinguisher for a Class C fire? For fires that involve sensitive equipment such as computers, servers, data centers, or other electrical equipment, Carbon Dioxide and Halotron Fire extinguishers are the best options to extinguish the fire without damaging the sensitive equipment.
How do you stop a Class C fire?
Extinguish a Class C fire by shutting off the electrical power, which serves as the fuel source for the electrical fire. Non-conductive chemicals like carbon dioxide should also be used to suppress the flames.
What are 5 classes of fire?
Fires can be classified in five different ways depending on the agent that fuels them: Class A, Class B, Class C, Class D, and Class K. Each type of fire involves different flammable materials and requires a special approach. In fact, trying to fight a blaze with the wrong method might make the situation worse.
Which fire extinguisher is used to put off Class C type of fire?
Fire extinguishers with a Class C rating are suitable for fires in “live” electrical equipment. Both monoammonium phosphate and sodium bicarbonate are commonly used to fight this type of fire because of their nonconductive properties….Fire Extinguisher Ratings.
| Rating | Pan Size (sq ft) | Gallons of Heptane |
|---|---|---|
| 40-B | 100.0 | 125.0 |
What is the difference between ABC and co2 fire extinguisher?
CO2s are designed for Class B and C (flammable liquid and electrical) fires only. Carbon Dioxide is a non-flammable gas that extinguishes fire by displacing oxygen, or taking away the oxygen element of the fire triangle.
What is the most dangerous type of fire?
Class C Fires
Class C. Fires caused by flammable gases such as butane and propane make up those in Class C, and are arguably the most dangerous given their propensity to explode.
What is the characteristic of a Class C fire?
A class C fire is one in which an energized electrical element is the cause of the fire. “Energized” means that the electrical component (whether electrical appliance, wiring, device, etc.) is connected to a power source.
What can Class C fire extinguishers be used on?
electrical equipment
Fire extinguishers with a Class C rating are suitable for fires in “live” electrical equipment. Both monoammonium phosphate and sodium bicarbonate are commonly used to fight this type of fire because of their nonconductive properties.
What is Class C fires?
What causes a Class C fire?
A class C fire is one in which an energized electrical element is the cause of the fire. Class C fires may be started from faulty wiring, a short circuit, damage to power cords, overloaded electrical outlets, overheated or overcharged devices, etc.
