Let's explore an important topic to ensure the durability and performance of the motors that make up the pumps: the degree or protection index, the so-called “IP”.


(Carlos Augusto Longo – Engineer at FAMAC)

You've probably come across this "IP" thing in your life, but you may or may not have realized it. Want to see how?

The truth is that when it comes to equipment with electric motors, such as motor pumps, one of the most common concerns has to do with the working conditions in which it will operate. This is where questions arise such as:

  • What happens if he gets caught in the rain?
  • Can it be installed in a dusty environment?

In fact, to answer these questions, it is necessary to understand what is called the degree of protection of electric motors.


So if you don't understand much about this, stay here post which we explain a little more.



What is this “IP” thing?


The “IP” is an indicative measure of the degree of protection that an electric motor has. In other words, it defines how resistant and protected the motor is to be maintained in challenging environments, such as those found in many pumping applications.


An interesting fact: in fact, the acronym “IP” does not mean Protection Index, but comes from English International Protection. It is an international standard defined by the International Electrotechnical Commission (IEC).


For us, here in Brazil, the translation for Degree or Protection Index isn't bad, is it?



NBR-IEC 60034-5 Standard


First of all, it is important to say that it is the NBR-IEC 60034-5 standard that classifies the degree of protection of electric motors against the entry of solids (foreign bodies) and the entry of liquids into their interior.
The NBR-IEC 60034-5 standard published by Brazilian Association of Technical Standards – ABNT, is an essential reference when we talk about protection indices in electric motors. It establishes specific criteria for different protection levels, providing guidelines for the appropriate selection of motors in different environments and operating conditions.
This standard defines the degrees of protection of electric motors by means of the characteristic letters “I” and “P”, followed by two numbers. The first (the letter “I”) refers to the type of protection of the motor against solids.



The second (the letter “P”) refers to the type of engine protection against liquids.



It is interesting to note that the higher the number indicated, the more protected the engine will be, both against dirt and liquid entry.


When the two numbers are combined, the degree or protection index, known as IP, is created. See how simple it is?



We’ve arrived at this “IP” thing!


The following table briefly shows the most common degrees of protection used in electric motors.



Although there are a variety of combinations between these two numbers, only a few types of protection are most commonly used in motor pumps. They are:



However, it is important to note that the level of protection is defined by the equipment manufacturer, through laboratory tests. Therefore, it is not something that is subject to interpretation.



FAMAC Engines: Suitable for Various Applications


At FAMAC, we understand the importance of offering electric motor pumps that meet the most stringent specifications and standards. The motors used in FAMAC motor pumps take into account not only efficiency, but also durability in challenging environments.
Although the most common protection ratings for motor pumps are IP 21, IP 55 and IP68, there may be applications that require a different rating. To this end, FAMAC has a specialized technical team to size the motor pump with the appropriate motor for the needs.
In fact, one of our greatest strengths lies in the diversity of our products. We have a wide range of motor pumps equipped with engines that meet different protection levels. Whether for firefighting, sanitation, civil construction, irrigation or specific demands, we have the ideal solution for your needs.



Choosing the Right Water Pump


When you choose a FAMAC motor pump, you are not only investing in quality, but also in the peace of mind of having a robust and reliable electric motor. Assess the conditions of the installation site, consider the specific requirements of your application and check the protection index specifications to ensure optimized and long-lasting performance.


In short, understanding the protection rating of electric motors is essential to ensuring the success of your pumping applications. At FAMAC, we are committed to providing solutions that not only meet, but exceed our customers’ expectations.


We hope that this post has been enlightening and informative. For more information, simply access famac.ind.br.


Connect with us, explore the variety of products in our Portfolio and discover how FAMAC can be the ideal partner for your pumping needs.


To the next!

Open chat
1
Need help?
Hello!
How can we help you?