A fall-out fuse is a commonly used short-circuit protection switch for 10kV distribution lines and distribution transformers.

Falling fuse circuit breakers are installed on the 10kV distribution line branches, which can reduce the scope of power outages. With a distinct breaking point, they offer the function of isolation switches, creating a safe working environment for maintenance sections of lines and equipment.

Installed on the distribution transformer, it can serve as the main protection for the transformer.

It features economy, ease of operation, and strong adaptability to outdoor environments, and is widely used in 10kV distribution lines and primary sides of distribution transformers for protection and equipment commissioning/cutting operations, achieving widespread application.