What type of fire extinguisher is suitable for electrical fires?

A CO2 extinguisher is suitable for electrical fires because it displaces oxygen and cools the burning material without leaving any residue that could potentially damage sensitive electrical equipment. When dealing with electrical fires, it's critical to use an extinguisher that does not conduct electricity, and CO2 is a non-conductive agent. It effectively suffocates the fire and reduces the likelihood of re-ignition as it rapidly removes oxygen from the vicinity of the fire.

Water-based extinguishers are not safe for electrical fires, as water conducts electricity and can pose a significant risk of electric shock. Foam extinguishers are suited for flammable liquids and not recommended for electrical fires for similar reasons, as they may conduct electricity and could cause further hazards. Powder extinguishers can be effective against electrical fires, but CO2 extinguishers are often preferred because they do not leave a residue and are less likely to cause damage to equipment while effectively extinguishing the fire.