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Join Date: Feb 2008
Posts: 36

IC of a motor

09/22/2008 11:18 PM

Dear all,

What is the meaning of " IC 411 " on a motor name plate.

Thanks.

Jan

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Guru
New Zealand - Member - Interested in everything- see my Profile please APIX Pilot Plant Design Project - Member - Member Engineering Fields - Electrical Engineering - Member Engineering Fields - Power Engineering - Member Engineering Fields - Civil Engineering - Member Hobbies - Musician - Autoharp and Harmonica Hobbies - Hunting - Member Hobbies - Fishing - Member

Join Date: Nov 2007
Location: Christchurch, (The Garden City), South Island, New Zealand
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#1

Re: IC of a motor

09/23/2008 2:05 AM

Hello jacojan

Totally Enclosed (IC 411) = IP55

http://www.reliance.com/pdf/catalogs/imc_2006/sm_med_metric.pdf

That was easy to find, top of the list in Mr Google's fine Search Engine: Results 1 - 10 of about 1,100,000 for IC 411 motor. (0.18 seconds)

Get used to using Internet Search Engines, they are going to save you much of your irreplaceable lifespan.

Kind Regards....

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Anonymous Poster
#2
In reply to #1

Re: IC of a motor

09/23/2008 7:50 AM

Nice link Sparky, but less than your standard answer. I'm a little bit bewildered!

I could surmise from the link that IC means "encapsulated" or totally "enclosed" but the various tabs on that sheet would lead one to think that the other items are true as well, such as "explosion proof". Then again, "enclosed" seems to imply that, but what about the steel fan under the cover that is mentioned?

Of course, since the IEC tab is grayed out a little bit, it looks like all we have to do to get from IEC to IC is drop the E? I'm not trying to be antagonistic, I'm just not sure that a page from a catalog always tells the whole story.

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Anonymous Poster
#5
In reply to #1

Re: IC of a motor

09/24/2008 1:53 AM

Well it looks like you googled the wrong thing. You better go back to google school and learn how to do it properly. This is an engineering forum and not a googling forum.

Del

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Guru
New Zealand - Member - Interested in everything- see my Profile please APIX Pilot Plant Design Project - Member - Member Engineering Fields - Electrical Engineering - Member Engineering Fields - Power Engineering - Member Engineering Fields - Civil Engineering - Member Hobbies - Musician - Autoharp and Harmonica Hobbies - Hunting - Member Hobbies - Fishing - Member

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Location: Christchurch, (The Garden City), South Island, New Zealand
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#6
In reply to #5

Re: IC of a motor

09/24/2008 2:57 AM

Hello "Guest"

Get the chip off your shoulder please, and don't be a

If you intend placing snide remarks, then have the intestinal fortitude to use your Member name.

It is a fact that trying to comment rudely on other Member's replies, likewise for using a "Guest" name, shows a lack of maturity on your part.

My answer is perfectly correct, and it is evident you did not understand either the Topic Question, nor the reply.

Kind Regards, as always....

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Anonymous Poster
#8
In reply to #6

Re: IC of a motor

09/24/2008 10:15 AM

re: "My answer is perfectly correct..." *NOT!* see post 7

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Power-User
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#3

Re: IC of a motor

09/23/2008 1:31 PM

Hi folks,

I believe the IC 411 refers to a method of Cooling as explained via this link

http://www.servorecambios.com/ABB/normcool.pdf

BTW, enclosed by no means imples explosionproof, it means that the motor has some form of a shroud.

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#4
In reply to #3

Re: IC of a motor

09/23/2008 11:01 PM

IC = Internally-Cooled. In other words, the motor usually has a fan covered by the end bell. This is very typical of AC motor design where a totally-enclosed or explosion-proof motor is not necessary.

A comparison is the typical DC motor which often employs external cooling by means of a mounted blower assembly, as the field can become quite hot when starting under load.

Best Regards,

Ing. Robert Forbus

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Anonymous Poster
#7
In reply to #4

Re: IC of a motor

09/24/2008 10:13 AM

Reading the pdf referenced in Post #3 might have prevented adding confusion here.

IC doesn't appear to mean "Internally Cooled", but rather that the numbers that FOLLOW the "IC" designation are an "International Cooling" standard ID.

And, Sparky ~ That Reliance Motors doc doesn't say: (IC 411) = IP55 ...

read it again and note the simple hyphen between the numbers. Altogether different implication, then.

Be cool

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