Which fire extinguisher class is suitable for use on electrically energized fires?

The correct choice for extinguishing electrically energized fires is Class C. This classification is specifically designed for fires that involve electrical equipment, such as motors, transformers, and other electrical appliances. Class C extinguishers contain non-conductive agents, ensuring that they can effectively suppress flames without posing a risk of electrical shock or further igniting the fire.

Using a Class C extinguisher is critical because other types, such as Class A (for ordinary combustibles like wood and paper), Class B (for flammable liquids), and Class D (for combustible metals), do not address the specific hazards associated with electrical fires. Therefore, Class C is essential for safely and effectively managing fires involving energized electrical devices.