Knife Switch HS11f-400/48 Isolation Switch Error-Proof Knife Switch 400A Knife Switch 380V Double Knife

• Transport Package: Paper Box
• Specification: 380*360*340
• Trademark: JAYI
• Origin: Panjiayu, Yueqing City, Wenzhou City, Zhejiang PRO
• Model NO.: HS11F-400/48
• Production Capacity: 260000

Product Description

Double-head knife switch is a simple manual control device, mainly used to isolate the power supply or manually switch on and off AC and DC circuits. It can also be used to infrequently switch on and off the load below the rated current, such as small motors, electric furnaces, etc. The double-head knife switch is simple in structure and low in price, but its capacity is small, commonly used in 15A, 30A, and the maximum 60A occasions. This kind of switch has no arc extinguishing ability and is easy to damage the blade, so the fuse can be used for short circuit protection when the capacity is small. For high capacity applications, it is necessary to install a separate porcelain insert fuse outside the gate and use copper wire instead of the original fuse 
The types of double-ended knife switches include the rubber cap knife switch and the iron shell switch. The rubber cover knife switch is characterized by simple structure and low price, but no arc extinguishing ability, easy to damage the blade. Iron shell knife switch has arc extinguishing ability, iron shell protection and interlocking device, safe operation, short circuit protection ability, suitable for infrequent operation occasions, its capacity selection is generally  times the rated current of the motor 
In addition, the double-headed knife switch is also known as the knife switch or isolation switch, which is the simplest and most widely used low-voltage electrical appliances in manual control. It connects (or breaks) the circuit by wedging (or separating) the moving contact (knife) and the static contact (knife holder) on the base. Among them, the fuse body as the moving contact is called the fuse type knife switch, referred to as the knife melt switch