Dropout fuse cutouts are outdoor high voltage protection appliances. It is installed on the high voltage side of the distribution transformer or on the branch line of the distribution line, and is used as the short circuit, overload protection and load dividing and closing current of the transformer and the line. The drop fuse consists of an insulating bracket and a fuse tube, the static contact is installed at both ends of the insulating bracket, and the moving contact is installed at both ends of the fuse tube, which is composed of an arc suppression tube and an outer epoxy glass tube. The pull load drop fuse adds an elastic auxiliary contact and an arc extinguishing cover to divide and close the load current.

Product Features

1、It has good breaking characteristic, can break rated breaking current and all kinds of short circuit and overload current below, and its performance can meet the requirements of (IEC) standard of International Electrotechnical Commission. 
2、Due to the use of step-by-step exhaust and the installation of a new arc extinguishing material tubule in the fuse tube, the contradiction between the breaking current and the breaking current is reasonably solved and the lower limit breaking current range is expanded. 
3、The fuse pipe is made of steel paper and epoxy glass pipe, which ensures that the fuse pipe has high mechanical strength and rated breaking capacity of more than three times, and can avoid the fuse action of the operator.The troublesome procedure of replacing the arc suppression tube after one time. 
4、The porcelain parts, the upper and lower static contacts and the mounting plate are all mechanically clamped. Compared with the cement pouring, the ceramic parts have higher critical strength and will not break and loose. 
5、The parts are stamped with strong interchangeability and convenient for production and maintenance. 
6、The rigid parts adopt hot-dip galvanizing process to ensure strong anti-corrosion performance and safe and reliable operation. 
7、Thefuse is equipped with T and K low melting point button fuses in accordance with ANSIC37, 42 American standard.

Dropout fuse cutout is one of the main products of  Shanghai Powery Industries Co., Ltd with good Wholesale Price and quality, Factory direct sales Low price. Our company is a competitive supplier(s) China and manufacturers, with various famous products.

Operation principle

 During the normal operation of the drop fuse, the fuse tube is tensioned with the help of the fuse to form a closed position. When there is a fault in the system, the fault current causes the fuse to fuse quickly and forms an arc, and the arc suppression tube is heated by the arc and decomposes into a large amount of gas, which forms a very high pressure in the tube and forms a longitudinal blow along the pipe, and the arc is rapidly elongated and extinguished. After the fuse is fused, the lower moving contact loses its tension and turns down, the locking mechanism releases the fuse tube, and the fuse tube falls, forming an obvious breaking position.When the load is needed, start the contact with an insulated rod, at this time the active and static contacts are still in contact, continue to pull the contact with the insulating rod, the auxiliary contacts are also separated, an arc is generated between the auxiliary contacts, and the arc is elongated in the slit of the arc extinguishing cover, at the same time, the arc is produced by the arc extinguishing cover, and the arc is extinguished when the current is over zero

Drop-out Fuse Series(Some specifications and models)

Available with composite -polymer silicone insulatorIn addition.according to user's requirement.we can also produce cutouts

with interrupter and arc-shortening rod

 Overview

Lead Time 

Packaging & Delivery

Packaging Details:Standard Exported Packing Or As Your Request

Port：Shanghai or Tianjin Port

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