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Old 01-16-2017, 09:16 AM   #1
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Default Foreign voltage wire color in IEC panel

For a system that is being built to IEC-60947, what color should wire be that is carrying foreign voltage that will not be turned off by the enclosure's main disconnect?

I found a chart with the other color codes but it doesn't list "foreign voltage."

In the USA, it's orange when complying with UL and NFPA.
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Old 01-18-2017, 08:06 AM   #2
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Originally Posted by bill39 View Post
For a system that is being built to IEC-60947, what color should wire be that is carrying foreign voltage that will not be turned off by the enclosure's main disconnect?

I found a chart with the other color codes but it doesn't list "foreign voltage."

In the USA, it's orange when complying with UL and NFPA.
In Europe the standard colour for conductors carrying voltage from a source not isolated by the enclosure main disconnect is ORANGE as the US.

The Standard is IEC-60204, AC power BLACK, AC control RED, DC power BLACK, DC control DARK BLUE, AC Neutral BLUE until passed through a protective device then BLACK.
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Old 01-18-2017, 09:07 AM   #3
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Originally Posted by Tom Ward View Post
In Europe the standard colour for conductors carrying voltage from a source not isolated by the enclosure main disconnect is ORANGE as the US.

The Standard is IEC-60204, AC power BLACK, AC control RED, DC power BLACK, DC control DARK BLUE, AC Neutral BLUE until passed through a protective device then BLACK.
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Old 01-18-2017, 10:34 AM   #4
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Originally Posted by Tom Ward View Post
In Europe the standard colour for conductors carrying voltage from a source not isolated by the enclosure main disconnect is ORANGE as the US.

The Standard is IEC-60204, AC power BLACK, AC control RED, DC power BLACK, DC control DARK BLUE, AC Neutral BLUE until passed through a protective device then BLACK.
Tom,
Thanks for your response and welcome.
Now I'm really confused. This site:
https://www.labelidsystems.com/blog/...ower-circuits/
says something completely different:

Single Phase Line (labeled as L): brown
Phase 1 (labeled as “L1”): brown
Phase 2 (labeled as “L2”): black
Phase 3 (labeled as “L3”): grey
Neutral Conductor (labeled as “N”): blue
Protective Earth (labeled as “PE”): green-yellow
*Notice there's no mention of "foreign" voltage.

This thing is going on an oil platform in the Mediterranean Ocean. The spec I'm using does not mention IEC-60204. It does say IEC 61800-2 and IEC 60947.

Any further thoughts would be appreciated.
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Old 01-18-2017, 10:55 AM   #5
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Originally Posted by Tom Ward View Post
In Europe the standard colour for conductors carrying voltage from a source not isolated by the enclosure main disconnect is ORANGE same as the US.

The Standard is IEC-60204:

AC power BLACK, [ Logical control, un-switched power ?]
AC control RED, [ Logical control, switch legs ? ]
AC Neutral BLUE until passed through a protective device then BLACK.

DC power BLACK,
DC control DARK BLUE,
IEC 60204 would seem to address only single phase control circuits.

And its utility for de-bugging across a DIN rail would seem evident.

The OP appears to be dealing with foreign power -- perhaps in three-phases.
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Old 01-18-2017, 11:41 AM   #6
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IEC 60204 would seem to address only single phase control circuits.

And its utility for de-bugging across a DIN rail would seem evident.

The OP appears to be dealing with foreign power -- perhaps in three-phases.
Yes, the main power is 3-phase 415VAC and the external voltage is 230VAC (for some panel heaters).
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Old 01-18-2017, 11:48 AM   #7
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Originally Posted by bill39 View Post
Tom,
Thanks for your response and welcome.
Now I'm really confused. This site:
https://www.labelidsystems.com/blog/...ower-circuits/
says something completely different:

Single Phase Line (labeled as L): brown
Phase 1 (labeled as “L1”): brown
Phase 2 (labeled as “L2”): black
Phase 3 (labeled as “L3”): grey
Neutral Conductor (labeled as “N”): blue
Protective Earth (labeled as “PE”): green-yellow
*Notice there's no mention of "foreign" voltage.

This thing is going on an oil platform in the Mediterranean Ocean. The spec I'm using does not mention IEC-60204. It does say IEC 61800-2 and IEC 60947.

Any further thoughts would be appreciated.
The specs you mention are for equipment, 60947 is for IEC industrial circuit breakers and 61800 is the standard for semi-conductors in AC speed controllers (inverters), not for wiring and identification colours.

Foreign voltage is not a term used this side of the Atlantic, the colours you have mentioned are from BS7671 the standard for wiring buildings and stuctures in the UK.

The colours used in fixed electrical installations are not the same as used inside control panel enclosures.

The UK uses Brown, Black, Grey, Blue-N but be careful this is not Europe wide other countries use slightly different colours,

The standard for control panels and machine wiring is IEC60204, it refers to foreign voltages as "excepted circuits".


Hope this helps,
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Old 01-18-2017, 11:57 AM   #8
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Default Orange

We just got a machine in from Germany and the " not disconnected" three phase for AC unit is orange
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Old 01-18-2017, 12:33 PM   #9
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We just got a machine in from Germany and the " not disconnected" three phase for AC unit is orange
Not surprised, literal interpretation of the standard and correct, I have seen German equipment wired like this myself, although not from the rest of Europe.

National stereotype time, Germany is compliant absolutely.
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Old 01-18-2017, 12:57 PM   #10
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Thanks for all of your replies.
For most things and not just color codes, I prefer to tell my customer what I expect to use and then they can tell me where I'm wrong.

In this instance things see to be all over the place so I just sent them a chart to fill in.

I'll let you know what the final decision is.
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Old 02-03-2017, 02:14 PM   #11
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Thanks for all of your replies.
For most things and not just color codes, I prefer to tell my customer what I expect to use and then they can tell me where I'm wrong.

In this instance things see to be all over the place so I just sent them a chart to fill in.

I'll let you know what the final decision is.
Here is what they came up with. Still missing a couple of colors.
To me it's a very odd color
code.
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