What terminal should I better use for crimping of a cable with cross section of 1.5 mm²- red or blue?

Question

What terminal should I better use for the crimping of a cable with a cross-section of 1.5 mm²- red or blue?

Answer

Both variants suit you, as they both are designed for stranded wires with 1.5 mm² in cross-section.
Red-insulated terminals are designed for range from 0.5 to 1.5 mm², blue for 1.5-2.5 mm². It is understandable that it is easier to put the wire of 1.5 mm² inside a blue terminal, but red terminals are cheaper. So you are free to make your choice.
Сrimping of disconnectros with a nylon cuff

Question

I have tried to crimp nylon-insulated disconnectors РПИ-М(н) and РПИ-П(н) on a wire with cross-section 6 mm². I failed because the disconnectors cannot be placed between the dies due to big size.

Answer

The fact is that these disconnectors are bigger than common PVC-insulated disconnectors, as they are made of a twice-thicker brass sheet. Anyway, disconnectors with red and blue insulation can be easily crimped with any tool. There is a problem only with the yellow-insulated disconnectors. CTK crimper made by KBT does not have the jaw opening wide enough for this size of disconnectors. It is better to use CTB tool for this task. It has not only a wider opening of jaws, but it is also much stronger and ideal for the task like this. We recommend viewing the advantages of this tool as it can be very useful for many other tasks and can make your job easier.
What piercing branch connector is better- ОВ or ОВ-Т?

Question

What piercing branch connector is better- ОВ or ОВ-Т?

Answer

They are both piercing branch connectors, so there is no need to cut a cable and remove insulation. OB-T has several advantages, the main of which is that there is no need to connect a cable at the moment of installation of this branch connector. You can leave them assembled on the cable until the moment when you will need to connect another cable with the help of a male disconnector. They are smaller, so more compact and less expensive.

Terminals have two types of insulation: made of nylon and PVC. What insulation is better for a terminal?

Question

Terminals have two types of insulation: made of nylon and PVC. What insulation is better for a terminal?

Answer

Terminals with nylon insulation can be used in a wide range of temperatures. The weld on the barrel is soldered, so you will not need to worry about the correct placement of the terminal between the dies. Moreover, the inside part of the cuff is designed so that it takes little time and effort from the user to place the wire correctly inside the terminal.
Could you please explain what is a vibration-resistant disconnector?

Question

Could you please explain what is a vibration-resistant disconnector?

Answer

There are flat non-insulated disconnector for double-crimping in KBT range- РП-М and РП-П. These disconnectors are vibration-resistant. The new type is called BРПИ-М and ВРПИ-П. They have an additional copper tube placed between the palm and the cuff. This copper tube is added for better vibration-resistance and more reliable tensile strength. This kind of disconnectors is used in the aircraft industry and railway car building, where functional units are subjected to intense vibration.
I have tried to crimped a PVC-insulated terminal 2.5 mm² on a NYM cable. The terminal can be taken off with a hand. What have I done wrong?

Question

I have tried to crimped a PVC-insulated terminal 2.5 mm² on a NYM cable. The terminal can be taken off with a hand. What have I done wrong?

Answer

All insulated terminals are made for the crimping of stranded cables. If you try to crimp a solid wire, the force of the tool will be not enough for the deformation of the solid wire, so the crimping will be of poor quality and not reliable at all.
What is the correct way to install piercing branch disconnectors?

Question

What is the correct way to install piercing branch disconnectors?

Answer

It is quite easy- place a disconnector on the cable and connection cable inside the connection lug at a side, without removing insulation from both cables. Then just press the disconnector with pliers and close the case. That’s it!
I have bought insulated terminals in a local supermarket, they were glossy. I have noticed that the same terminals made by KBT are mat.

Question

I have bought insulated terminals in a local supermarket, they were glossy. I have noticed that the same terminals made by KBT are mat.

Answer

Both coatings are pin-plating. Glossy surfaces were subjected to electrolytic tin-plating, matt surfaces say that bismuth was added during tin-plating. Bismuth brings additional resistance to corrosion, so the product will live a longer life.
What means “easy entry”?

Question

What means “easy entry”?

Answer

You can understand these two words literary. What entry is easy? The entry of a stranded wire into a terminal. The common terminal has a little step inside its body, that acts as an obstacle for stranded wire: some wires can be folded or do not go inside the terminal at all. This will change the nominal cross-section of the wire and affect the connection that can overheat in the future. Easy entry terminals do not have this obstacle inside their bodies, and the user easily puts the wire inside the terminals without any need in twisting it. This potion is widely used in the whole civilized world. Nylon insulated terminals and connectors, as well as insulated and non-insulated pin terminals made by KBT, have this useful option.
WS-04 tool has a function of crimping of insulated terminals. Is it true?

Question

WS-04 tool has a function of the crimping of insulated terminals. Is it true?

Answer

WS-04 is a very good tool for removing of insulation. There is an option of crimping n the tool and can be used if you don’t have any other tool for crimping. In case you need to do the crimping many times during your work, we recommend to purchase a special crimping tool that will ensure the good results of crimping and reliable connection.
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