Is a wheeled fire extinguisher classified as a portable fire extinguisher?

A wheeled fire extinguisher is classified as a portable fire extinguisher because it is designed to be easily moved and operated by one or two persons. While it may have wheels, which makes it larger and generally heavier than traditional handheld extinguishers, the key factor is its mobility. The National Fire Protection Association (NFPA) defines portable fire extinguishers as those designed to be carried or moved by a person while they operate it.

The classification focuses on the usability and mobility of the extinguisher in emergency situations. Therefore, regardless of its weight or size, as long as it is intended for transport and can be operated as needed, it qualifies as a portable fire extinguisher. This definition and understanding of "portable" do not limit the classification to a specific weight or the need for mounting, which aligns with the answer provided.