the notation means that it probaly came from germany and has poles
inside that can be rewired for a different voltage. this has already
been done as we don't use 380 in america.

Empresser #124457


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John wrote:
"RBM" rbm2(remove wrote:

It doesn't work that way. It is probably a 230 volt motor and has two
speeds, which are internally changed. Have him or an electrician come and
reconnect it for the lower speed

I scrambled up and looked its specification plate. It says "Y/A 380/220 V"
What does that mean? The motor is at least 30 years old if not older.



"John" wrote in message
.. .
My roof exhaust is too powerful. When the electrician set it up he asked
whether
I want it to full power or half. It was set to full power.

The exhaust fan takes two 230V lines. What if one 230V line is
disconnected will
it be half power or will I damage to fan? I am sure to get a fully
qualified
answer one would have to inspect the connections and such but generally
speaking
would disconnection the other 230V line be the usual solution? I am
thinking of
just shutting the breakers to the other line.