Motor Colour Connections
Motor Colour Connections
(OP)
I have an electric motor of European manufacture with 6 leads coloured, yellow, brown, green, black, blue and white.
The green wire is not earth, there is a green/yellow wire which is connected to the frame of the motor.
The motor is dual voltage, 230 or 380V depending upon if it connected in delta or star. I want to use it on 380V.
I have belled the wires out and have the following:
black --> green
blue --> white
yellow --> brown
But which colours are for the star point and which are for the supply? I've searched the internet without success.
The thought of all the differing connection combinations makes my head spin!
Does anyone know, please?
The green wire is not earth, there is a green/yellow wire which is connected to the frame of the motor.
The motor is dual voltage, 230 or 380V depending upon if it connected in delta or star. I want to use it on 380V.
I have belled the wires out and have the following:
black --> green
blue --> white
yellow --> brown
But which colours are for the star point and which are for the supply? I've searched the internet without success.
The thought of all the differing connection combinations makes my head spin!
Does anyone know, please?





RE: Motor Colour Connections
RE: Motor Colour Connections
RE: Motor Colour Connections
www.hanning-hew.de
RE: Motor Colour Connections
To make a STAR connection:
Connect GREEN, WHITE and BROWN together. This makes your STAR-point.
Connect your supply phase wires to BLACK, BLUE and YELLOW.
If you now measure between your STAR-point and a phase you will measure 220Volt
Between the phases you will measure 380Volt
To make a DELTA connection:
Connect GREEN and BLUE
WHITE and YELLOW
BROWN and BLACK
Connect one phase to GREEN and BLUE
one phase to WHITE and YELLOW
one phase to BROWN and BLACK
So in your case, use the last example.
Didn't this motor come with small little connection plates in the junctionbox? Normaly European motors have a very good junctionbox on the motor. The wires are allready connected in the junctionbox, the only thing you have to do is place the little connectionplates in the right place to make it a STAR or DELTA motor.
This instead of USA motor, where the wires are all loose in the junctionbox and you have to connect them all yourself.
Greetings,
Cryotechnic
"Math is the ruler of your potential succes...."
RE: Motor Colour Connections
Can you clarify if the leads are loose or connected to the terminal block please.
RE: Motor Colour Connections
I have never seen a motor (who is ment for the european market) with a combination of a terminal block and coloured wires. With a terminal block they use black or brown wires.
Greetings
Cryotechnic
"Math is the ruler of your potential succes...."
RE: Motor Colour Connections
Thanks for post. About this motor, I believe it was not made for U.S Market,because the wires are not marked with numbers (1,2...6)like NEMA´s Standard.Really I think is a motor manufactured for EUROPE, some manufacturers like ABB made your motors with colored wires and mainly for marine applications like cranes.The European designs are made under IEC Standards and all motor have connection block.
Best Regards
PETRONILA
RE: Motor Colour Connections
RE: Motor Colour Connections
u1 = black
u2 = green
v1 = blue
v2 = white
w1 = brown
w2 = yellow
Thanks again!