Author Archives: Industrial Coaxial Connectors

Multicontact connectors are devices used to join circuits within the industrial sector and control electronics. Today we will go into more detail analyzing 5 characteristics of multi-contact connectors with combi-tech system.

Although, this type of connectors not only have multiple applications within the industrial sector, but also in robotics, aeronautics, domotics, access control, spectacular lighting, railways and vending and control machines.


5 characteristics of multi-contact connectors

You may already know, but multi-contact connectors have become essential parts in each of the sectors mentioned above. If you’re wondering why, you’ll find the answer in the features they have. What do you think about listing them? Well, let’s get started!

The latest in design and materials

These devices are generally equipped with the latest connectivity technology because they are made with the best materials and the latest design and manufacturing techniques.

They provide a quality connection

We are not exaggerating when we say that these connectors are the most reliable and offer very high performance.

For this and other reasons, they guarantee an optimal and effective connection.  In fact, we dare to say that multi-contact connectors are some of the best natural substitutes for the connectivity we all dream of.

They are versatile

Another surprising feature of these devices is their versatility. They are usually compatible with Socapex – Amphenol, something that technicians in the industrial sector are very grateful for.

Offer good resistance

Some models are designed to withstand high temperatures, others to resist powerful vibrations and others to work in inhospitable atmospheric environments.

So choosing the right multi-contact connectors will depend on your needs and where you are going to use them.

Combinations supported

Yes, as you read, these connectors can also be combined (depending on customer needs) with other electrical, RF coaxial, fiber optic and fluid connectors all in one device. Isn’t that great?

This is good news for workers in the industrial sector who, apart from being quite demanding, require custom connectors to carry out their activities in a more practical way.

To achieve this, it is important that you use a service specialized in connector combinations.

Types of multi-contact connectors

There are different types of multi-contact connectors, but the most popular are the following:

Circular: as their name indicates they have a circular shape and their insulators come in 5 different sizes (T-10, T-20, T-30, T-40 and T-70). Not to mention that they are capable of withstanding severe vibration environments.
Modules: they can be electric, coaxial, fiber optic and compressed and vacuum air, and are usually made with thermostable materials, so they can withstand temperatures from -40ºC to +120ºC.
Rectangular: basically they are modules that are mounted in solid aluminium housings and tightened by means of staples. In them, modules of 2, 3, 5 up to 8 contacts can be put together.
Carter: these are purely industrial or watertight connectors with IP-68 degree of protection, i.e. they are water resistant and are manufactured in multiple sizes (with insulators from 50mm to 300mm).

Tell us, do you need professional advice about this type of multi-contact connectors with combi-tech technology? Contact us and we will be happy to help you.

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Looking at electric conduction product catalogs, it’s possible that you may have come across the torque we’re holding for you today. After that, it’s also likely that you’ve wondered what are the differences between electrical cables and hoses. Today we will address this issue from Alfa´R.


What is the difference between electrical cables and hoses?

Honestly, the difference between an electric hose and an electric cable is that the first is formed by the second; that is, we can have a cable hose. The cables in turn, can be, or not, unipolar, while the hoses are not.

For the rest, they are two products with similar features and that are used as an equally valid solution in most cases.

It is true that, in general, the hose is thicker and longer and the voltage it supports is higher, however, this does not necessarily have to be the case. There are, for example, conventional cables with a higher voltage support than certain hose models. Thus, it is a generality but not something that is always complied with, so we can not say that cables and electrical hoses differ in these aspects, although sometimes, we repeat, it is so.

Another point to emphasize is that the cables can be subdivided in several types whereas the hoses are more general products.


As we say, it is a more general electrical conductor. Its characteristics indicate to us that it is a product of high resistance and durability. You have them from 2 to 6 wires.

There are halogen-free hoses (of obligatory use in certain places), flexible or semi-rigid, flat or cylindrical, of medium and high voltages, in conventional colours and others more dynamic…

Electrical Hoses


We have already commented that one characteristic of electric cables is that they can be unipolar, thus differentiating them from hoses. These are used when the distances are shorter and when the characteristics of the environment are more favorable (as would be the example of cabling for offices and premises).

Among the many types that we can offer, we have electrical cables for connection, free of high security halogens, flexible, braided, bare copper, coaxial for television, parallel sound, shielded network cable for LAN-Ethernet connection, for antennas, in a multitude of colors, unipolar of specific measures …

Industrial electrical cables

Electric cables and hoses at Alfa´R

We couldn’t finish without remembering that at Alfa´R we have a wide selection of both hoses and electrical cables.

Of course, we always offer the highest quality, so that the useful life of these electrical conduction solutions is maximum.

In addition, we scrupulously comply with regulatory requirements, offering products that are free of iodine, chlorine and other halogens, which are corrosive and toxic if burned. Since copper is the best conductor, it is the body you will find in these products, which are also offered in different diameters, voltages and lengths.

Electrical cablesIndustrial electrical hoses

Basically these are the main differences between cables and electrical hoses, we hope you have been a little clearer, and if you found this information useful do not hesitate to share the post. As always, you can contact us to resolve any doubt or question you may have.

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High intensity connectors are a highly demanded product at Alfa´r due to the physical conditions, resistance and durability with which we make them. Do you want to know how they are?

What are our high intensity connectors like?

Let’s show you all about this successful and useful high intensity connection product.

How do high intensity connectors work

Alfar Series

The high intensity connectors of Alfa´r correspond to what would be the B-AI series.



These are suitable in a number of situations but are undoubtedly an optimal product in cases where more than one spring contact is required.

They can be used in circuit breakers, switches, transformers, disconnectors, wall bushings and switches.



These high voltage connectors are very compact, having a small size, ranging from 4 to 40 mm for their diameter and from 20 mm2 to 1200, in the case of the largest, for their contact surface. The contact surface is very large in relation to the total surface, which ensures a perfect connection that will have virtually no losses.

The cable sections would be, for these sizes, from 5 to 630.

As the connectors are larger more cones are also included. The smaller models have 2, going on to reach the 10 cones of the larger one.

There are two types of finish:

Natural: No treatment is given to the connector.
Silver: This is subjected to several chemical baths that prepare it. The last one, silver, is used to improve the general conductivity.
Anodizing: The exterior is not conductive. It offers a very high resistance to corrosion, making it the ideal finish for spectacular lighting and corrosive environments in general.

In any case, these designs offer maximum safety, even when the working power is very high.



Obviously, one of the most important aspects of these products in intensity. Thus, we find the following values for peak current and permanent and discontinuous services.

Permanent service: The lowest of these has an amperage of 25. The highest reaches 1000 A.
Discontinuous service: In this case, the smallest measure is 38 while the maximum reaches 1500.
Peak current: Finally, we find a peak current that is 150 for the lowest of the high intensity connectors and that, under safe conditions, reaches 6000.


Elastic cone system

This has an important number of contact points between two high intensity connectors, male and female. This allows the connection to have a very high quality.


Sexed connectors

As is logical, we have both female and male versions.

The latter is mounted to press, so that the elastic cones are nailed to the body to the point of becoming a single solid piece. It has an elastic pin, which is used so that the connector, as it is being used, does not loosen. Its nose is threaded to the body.

Company specialized in high intensity connectors

So far this post about high intensity connectors, have you found it useful? If so, don’t hesitate to share it and leave us your opinion in the comments box. As we are always at your disposal, so do not hesitate to contact us to resolve any doubt or question you may have.

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In this occasion we want to talk about the connection tools, more specifically to let you know the main characteristics of the cable-connector connections, also called flexes, whips or hoses.

What is a hose or wired cable-connector?

A hose is a type of flexible connection whose main characteristic is the facility it offers to make such a connection, no matter how hidden or inaccessible the place where it is located.

Physically, we are talking about a flexible cable with two connectors at its ends. Depending on what we want to connect, we must choose between the types (since there are many types of tools for the connection that can be used depending on it) and, if there are, subtypes of hoses or connections.

tailored industrial cables What is a hose or wired cable-connector?

Types of connections

Coaxial cable: At least one of its ends is attached to a coaxial-type input that transmits high-frequency electrical signals. We see them frequently for use in connection with televisions.
Electrical: They include aerial connectors, males or females, of three poles.
Multi-pole hose: As its name indicates, this connection has different poles at each end.
Fiber optic cable: These are the network cables that offer the fiber to the end user.
Combined cable: Used to combine different types of contacts such as fiber, electrical, fluid, coaxial … The ends do not have a single connection unit but are branched, optimizing space and resources in projects that require a greater number of connections.

tailored industrial connectors connection tools for industrial connectors

Patchcords or cable-connector connections from Alfa´r

In Alfar we make your tailor and customize the connections in the shape the client wants, always depending on the needs you show us talking about your project and your products.

As experts in the design and production of these products, we always ensure the highest quality thanks, in part, to the fact that we have the most modern means of production. So much so that we even offer the possibility of certification.

Making a connection can be simple, but there are cases in which there are more and more requirements for the situation to be safe, as in the case of electrical connections. Reliability, quality, safety, minimal losses and a very long service life are required. Only expert, trained, professional and experienced hands can do it.

Each of the products we design is tested before leaving our door, so that we can ensure that they are specifically intended for the use you want to give them. In addition, we always work with minimum deadlines and very competitive prices that make us remain a benchmark in the sector in our country.

In addition, we can supply not only the hoses for your project but we design complete connection systems, always advocating efficiency and safety above all. With them, projects in sectors such as mining, telecommunications, automotive, railway, military, naval, industrial and many others, benefit from a series of products that, as a whole, will always work better, because they will have been designed to be part of the same system, of the same unit.

wired cable-connector hose connectors


So far today’s post on the main features of the cable-connector connections, what did you think? We hope that now you have a clearer vision of how these types of connections work. As we are always at your disposal, so you can contact us to resolve any doubt or question you may have. Greetings and see you next time!

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If you have come to this article is because you need a coaxial cable, but do not know the points to take into account to make the right choice of coaxial cable. The good news is that you have reached the right website.

Well, let’s start by pointing out that a coaxial cable has a pair of electrical wires; one is in the middle and the other is located in the insulating space between the two.

What is a coaxial cable used for and where?

This type of cable is used to transmit energy in radio frequency, thanks to the fact that it offers a very demanding control over the electrical impedance, as well as obtaining a great performance for high frequencies, shielding and control of electromagnetic interference.

Currently there is a wide range of applications for coaxial cables, but the truth is that its two main impedances are those that determine its use.

We refer to the 50 Ohm impedance used for data signal applications, and the 75 Ohm impedance used for video signal.

Recommendations for choosing the right coaxial cable

Recommendations for choosing the right coaxial cable

The best advice we can give you to choose the right coaxial cable is to know the following definitions:

Tenuation: When power is lost, the level is measured in dB of loss per cable length. Well, the attenuation increases with frequency.
Coaxial adapter: This is a device that is used to change one type of connector to another such as a TNC to SMA adapter, for example.
Double Axial: Consists of a branch of coaxial cables that has two central conductors and has a single dielectric and a braided shield.
Shielding: refers to a conductor made of metal wires that covers the central conductor and the dielectric.
Central conductor: the solid or braided wire in the middle of the coaxial cable.
Coaxial connector: interconnection device located at the end of the assembled coaxial cable. There are several types: SMA, TNC, type F, N
Dielectric: we are talking about the insulating material that separates the central conductor from the shielding conductor.
Frequency: is the number of times a periodic action occurs in a second. The frequency is measured in Hertz.
Electromagnetic Interference (EMI): refers to the electromagnetic energy that alters electrical signals.
Impedance: The property of a component to restrict the flow of current through a circuit. Impedance is measured in ohms (Ohm).
Jack: A female connector that commonly has a hole in the center, something that doesn’t happen when it’s a reverse polarity (RP) connector.
Insertion loss: This is a measure of the attenuation established after connecting a cable or equipment in the system.
Plug: male connector that usually includes a pin in the center, unless it is an RP connector.
Radio Frequency: Frequency band starting from 3 MHz to 3 AWG. It is generally used for Wi-Fi signal transmissions, telephony, TV and general data.
Bend Radius: the size of the radius where the cable can be bent without losing the signal.
Propagation speed: normally expressed as a percentage, it refers to the speed of transmission of electrical energy in some length of cable contrasted with the speed of light.
Voltage Standing Wave Radio: is the relationship between the maximum effective voltage and the minimum effective voltage. Both voltages are measured by means of the radio frequency transmission line.

how to choose the right coaxial cable

We assure you that by mastering these definitions you will know how to choose the right coaxial cable for you. If you have any questions, you can contact us.

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