For which types of fires is a Class C fire extinguisher rated?

A Class C fire extinguisher is specifically rated for fires that involve energized electrical equipment. The classification of fires into different classes is based on the type of materials that are involved. Class C fires can involve any electrical devices, such as appliances, wiring, or circuit breakers.

Using an extinguisher that is not rated for Class C fires, like those rated for ordinary combustibles or flammable liquids, could be dangerous because applying water or certain types of foam could further complicate an electrical fire, potentially leading to electrical shock or equipment damage. Therefore, it's crucial to use a Class C extinguisher, which typically uses non-conductive agents like carbon dioxide (CO2) or dry chemical powders that can effectively suppress the fire without conducting electricity.

Class D materials pertain to combustible metals, and extinguishers for those materials are designed with different agents that specifically target those types of fires. Understanding the appropriate class of fire extinguisher to use ensures not only effective firefighting but also safety for the user.