Drop-out fuse is the most commonly used short-circuit protection switch for branch lines and distribution transformers of 24kV distribution lines.
The drop-out fuse is installed on the branch line of the 24kV distribution line, which can reduce the scope of power failure. Because it has an obvious disconnection point, it has the function of an isolation switch, which creates a safe working environment for the lines and equipment in the maintenance section.
Installed on the distribution transformer, it can be used as the main protection of the distribution transformer.
It has the characteristics of economy, easy operation and strong adaptability to outdoor environment. It is widely used in 24kV distribution lines and the primary side of distribution transformers for protection and equipment switching and switching operations, and has been popularized.
This product has passed the European 7.2kA 10kA breaking test。

The drop-out fuse is installed on the branch line of the 11kV distribution line, which can reduce the power outage range. Because it has an obvious disconnection point, it has the function of an isolating switch, creating a safe working environment for the lines and equipment in the maintenance section. Improve the sense of security of maintenance personnel. Installed on distribution transformers, it can be used as the main protection of distribution transformers, so it has been popularized in 10kV distribution lines and distribution transformers.
This product is designed with 10 equal-diameter shed with a diameter of 90mm. This product is a customized product under the guidance of African customers.

This product is a newly developed product introduced by our company this year, and all test reports have passed. The annual sales volume of this product has reached 300,000 pieces.Cut-out fuse and load-off cut-out fuse , are suitable for power transformer and line short circuit , over –load protection as well as breaking and making load current using in power system which rated frequency 50Hz , rated voltage 35kV or less , installing high voltage side of power distribution transformer or distributing main line. They are one kind ideal outdoor protector.

This product is the most commonly used short-circuit protection switch on 30kV~38KV high-voltage lines. It has the characteristics of economy, easy operation, and strong adaptability to outdoor environments. The product material is designed with ceramics.

Cut-out fuse is most commonly used short-circuit protection switch for 33kV distribution line branch lines and distribution transformers. It has the characteristics of economy, convenient operation, and strong adaptability to outdoor environments. It is widely used as protection for 33kV distribution lines and the primary side of distribution transformers. And for equipment switching and cutting operations.
This product uses for 14 shed design with a structural height of 610mm.and this product is loved by the majority of African customers.

Cut-out fuse is made of insulating base, live and fixed contact and fuse tube. Fixed contact installed on both sides of insulating base, and live contact installed on both sides of fuse tube , and out Bakelite paper tube or epoxy –glass fiber fabric tube . Load-off cutout fuse is used for breaking &making load current with adding spring auxiliary contacts and arc-quenching cover. When cutout fuse under normal working condition . Fuse tube forms close location with help of tight for fuse link.
When any fault come out in system, fault current make fuse link melt promptly , and form arcing , arc-quenching tube heated by arc , decompose lot of gas ,produce great pressure inside of tube, and blow vertically in high strength, the electric arc would be lengthened and quenched quickly. After melting of fuse link, fixed contact below turn down due to lost of tension, it makes locking mechanism to release fuse tube to fall down, it forms obvious breaking off location.
When necessary to pull-off load, unhinge contact with insulating link, live and fixed contacts are still connected , to pull contacts continuous with insulating link , auxiliary switch also would be apart , it make electric arc between auxiliary switches ,arc would be lengthened in narrow slot of arc-quenching cover , which produce gas at same time, to quench the arc when current over zero.