motor wiring diagram for 3 phase motor

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Forum topic by , posted 11-28-2013 10:26 PM 1841 views 0 times favorited 7 replies Add to Favorites Watch
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2387 posts in 2968 days

11-28-2013 10:26 PM

I have a Marathon motor out of an old PM 65, It states 220-440 volt on nameplate. A sticker was placed on the motor warning that motor is wired 440volts. There are 9 wires, t1 through t9. After wiring the motor properly i will p!an on bench testing the motor with our RPC. I plan to wire this motor for 220 and install a static phase converter. It is very nice saw and hate to see it just collect dust.

I have researched and found two primary types of motors are the Delta and the WYE motors. So not sure if anyone would have any info on this subject. The motor looks to be in good shape. Thanks.

-- .

7 replies so far

View klassenl's profile


169 posts in 2080 days

#1 posted 11-29-2013 03:24 AM

If you post some pictures that would help. It’s very hard to guess (and very unwise) about these things.

-- When questioned about using glue on a garbage bin I responded, "Wood working is about good technique and lots of glue........I have the glue part down."

View TopamaxSurvivor's profile


17577 posts in 3097 days

#2 posted 11-29-2013 05:32 AM

What is the question? Most motors will be ‘Y’. Delta are very rare in common everyday usage. There should be a connection diagram on the motor to change from high to low volts.

-- Bob in WW ~ "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

View exelectrician's profile


2327 posts in 1848 days

#3 posted 11-29-2013 06:06 AM

Hi, look at this video and you should solve your problem – let us know it it does not help‎

-- Love thy neighbour as thyself

View MedicKen's profile


1610 posts in 2883 days

#4 posted 11-29-2013 01:35 PM

Scroll to the bottom of this page

-- My job is to give my kids things to discuss with their

View Bluepine38's profile


3336 posts in 2506 days

#5 posted 11-29-2013 04:22 PM

If there is not a good wiring diagram on the motor, or a wiring diagram available that is definitely for that
motor, I would take it to a good electric motor shop and have them make you a diagram. Just my opinion
and I have been wrong once or twice.

-- As ever, Gus-the 77 yr young apprentice carpenter

View TopamaxSurvivor's profile


17577 posts in 3097 days

#6 posted 11-29-2013 08:49 PM

View ,'s profile


2387 posts in 2968 days

#7 posted 11-29-2013 11:00 PM

Thanks everyone for the help. I will be wiring the motor this next week and getting it ready for a static converter. The table saw should be up and running very soon. Thanks.

-- .

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