Cable glands
A fitting and what is its purpose?
The purpose of cable glands is to safely conduct of cables through elements of electrical appliances in a way that prevents the cables from breaking or twisting. The gland itself is a mechanical element that serves to safely connect a cable to a panel or other surface. This provides an easy and quick way to secure the free end of the cable without tension or bending.
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Types of fittings
Taking into account the most characteristic division in terms of mechanism and installation, cable glands can be divided into screw glands and plastic glands (often rubber). They are made of different types of material, such as polyamide, rubber and metal alloys. Depending on the material, they have different operating temperatures: from -30° to +100°C. The cable in them is installed by pressing or through a membrane. Screw glands relieve the cable and prevent it from breaking. They provide reliable and durable fastening. This is the most important advantage, thanks to which screw glands are the most reliable and frequently used glands. Rubber glands do not relieve the cable and thus do not guarantee reliable fastening. However, they are used wherever there is no danger of the cables being pulled out, for example due to their location or the use of another method of protection. In addition, low price is an important advantage of plastic components.
Nipple body
This is the main part of the mechanical element called a nozzle. It is usually made of several different materials, such as aluminum, steel, stainless steel, or plastic. The nozzle body and housing are responsible for holding all the other parts of the small device.
The nuts contained in the fittings are used to firmly and securely tighten and secure the entire body. They usually have a hexagonal shape, as well as a hole in the middle. The fittings have several different types, which can also differ in the type of nuts, in addition to those that we have already explained to you above in the text.
The grommets usually have small rubber rings that are placed inside the body of the small mechanical elements. They are placed there to provide a more reliable place for the cables that will be placed in them. The small rings cover and fix the cable very well, which further helps in the strength of the entire cable route.
The nipples also have a thin disc-shaped device made of plastic or metal. They have a hole in the middle to evenly distribute the load that the nut exerts on the device. These small discs are used to prevent wear and corrosion processes. Thanks to this small addition to the nipples, vibrations can be reduced to almost zero.
What cables are the glands suitable for and what are their standards?
Cable glands are used in almost all areas related to electrical installation work. Cable glands are universal entries for various types of cables:
- telecommunication cables;
- power cables;
- installation cables;
- measuring cables;
- data transmission cables.
The main standards for fittings are PG and metric (in millimeters).
Choosing a cable gland (What we need to know before choosing the right gland)
When choosing a fitting, it is worth paying attention to the working environment and operating conditions of the element. These require certain qualities necessary for trouble-free operation. Among them, we can list:
- The material of the fitting body - it is decisive for the durability and service life of the element. The structure of the body gives the elements the properties characteristic of the given material. The material often determines the color of the fitting, which is especially important in the case of outdoor applications where UV resistance is important.
- The IP tightness class of the cable gland - must not be lower than the tightness class of the element to which the gland is mounted. Among the glands offered by TME, the most common components have a protection class of IP68, providing dust resistance and resistance to continuous immersion in water.
The PG marking is a unit of measurement used mainly in electrical installations. Although it still functions and threads still have these markings, the metric measure is used globally and is more often used on threaded elements. To choose the most suitable cable gland, it is worth measuring the outer diameter of the cable before purchase and then comparing it with the fastening range of the individual models. In this way, we will have a guarantee of free passage through the element and its correct functioning. It is worth noting that e.g. glands with the same M20 thread can have different fastening ranges.
Fitting the fitting
The fittings are designed to be very simple to install in everyday life. There are many types of the device, so you need to choose exactly those that match the external environment. Then you need to think about the thread of the fittings. Those of the PG type are the most common, although there are many other types. They can be installed using only their own thread, but a nut can also be used. This is a way to ensure much more security in the electrical circuit. Some premises have special requirements for the use of fittings. Users can find a wide variety of devices on the network. Everyone can find the device that perfectly matches the requirements and capabilities. They can buy them both at hardware stores and online from stores like ours.
What kind of fittings are available in the Ennext store?
Enext company is a direct importer and distributor of a wide range of PG standard fittings with sizes from PG7 to PG 63. With us you will find the fittings you need at affordable prices and with excellent quality. You can easily and quickly order them from the online store, counting on fast delivery, or if you prefer, you can walk to the physical store or warehouse complex of Enext company.
You can also browse some of the other categories in our product catalog.
Happy shopping!
A fitting and what is its purpose?
Types of fittings
Nipple body
What cables are the glands suitable for and what are their standards?
Choosing a cable gland (What we need to know before choosing a cable gland)
Fitting the fitting
What kind of fittings are available in the Ennext store?
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