| Customization: | Available |
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| Transport Package: | Paper Box |
| Specification: | 380*360*340 |
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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
Our product packaging is meticulously crafted to provide superior protection against external damage and contamination, ensuring the product's integrity and safety throughout transportation and storage.
1. What certificate does your company have?
Our company has international certificates below:
A. Quality management system certificate complies with GB/T 19001-2016/ISO 9001: 2015 requirements;
B. Environmental management system certificate complies with GB/T 24001-2016/ISO 14001: 2015 requirements;
C. Occupational health and safety management system certificate complies with ISO 45001: 2018 requirements.
2. Is your company a factory or a trader? What products can be provided?
I mainly produce: torque locking device series, torsion terminal series, floor shard wire clamp series, stainless steel parallel wire clamp series, energy-saving flat wire clamp, aluminum groove series, C-type wire clamp series, aluminum crimping series and other power fittings products.
3. What are the materials of your products? Can do other materials?
Our product material is alloy aluminum. Sometimes, customers want copper preformed materials, we indeed made it before.
However, we still listen to customers if different materials are required.
4. Can your company provide drawings?
Yes, we can. Drawings are a way of confirming the parameters of the products. By providing drawings, we can avoid mistakes. Sometimes, customers sent some pictures with measuring, we engineer can draw a very good technical drawing based on it.
5. Can you provide a Certificate of Origin? Or invoices certified by Embassies?
We have been already recorded and registered in the Commodity Inspection and Quarantine Bureau and the Embassy, so we are qualified to issue certificates of origin and invoices for different countries.
6. When customers show the target price or price from other suppliers, can you agree that?
We are happy when clients give us their advice about the buying price, that means, customers have interested to our company and products, and may in some way, also have trust in us. In this way, it's no doubt to carefully check the target price from customers, listen to their requirements of quality. Give the best solutions.
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