Mb

Merle

01/12/2004 6:36 PM

Source for a three phase start switch?

My new band saw has a three phase 3 HP motor. The magnetic switch is
broken (the saw runs fine if I bypass the switch).

I can't find a source of three phase magnetic switches. Anyone have one
to sell, or can offer a commercial source (no luck on ebay for a week)

Thanks!

Merle


This topic has 8 replies

Nn

Nova

in reply to Merle on 01/12/2004 6:36 PM

01/12/2004 7:16 PM

Merle wrote:

> My new band saw has a three phase 3 HP motor. The magnetic switch is
> broken (the saw runs fine if I bypass the switch).
>
> I can't find a source of three phase magnetic switches. Anyone have one
> to sell, or can offer a commercial source (no luck on ebay for a week)

Grizzly Tools:

http://www.grizzly.com/products/items-list.cfm?&listtype=keyword&keywords=switch&StartRow=11

--
Jack Novak
Buffalo, NY - USA
(Remove "SPAM" from email address to reply)

Jj

John

in reply to Merle on 01/12/2004 6:36 PM

01/12/2004 6:22 PM

Betcha Grainger or McMaster-Carr has them as well. MiniMax also sells
3phase machines, betcha they also could supply a switch

However, BEST folks for a new switch that will FIT would be the folks
who made/sold the saw, have you contacted them???

John

On Wed, 01 Dec 2004 18:36:03 -0500, Merle <[email protected]>
wrote:

>My new band saw has a three phase 3 HP motor. The magnetic switch is
>broken (the saw runs fine if I bypass the switch).
>
>I can't find a source of three phase magnetic switches. Anyone have one
>to sell, or can offer a commercial source (no luck on ebay for a week)
>
>Thanks!
>
>Merle

fF

in reply to Merle on 01/12/2004 6:36 PM

01/12/2004 8:36 PM

Merle <[email protected]> wrote in message news:<[email protected]>...
> My new band saw has a three phase 3 HP motor. The magnetic switch is
> broken (the saw runs fine if I bypass the switch).
>
> I can't find a source of three phase magnetic switches. Anyone have one
> to sell, or can offer a commercial source (no luck on ebay for a week)
>
> Thanks!
>
> Merle

Merle,
Your having a jargon problem -- it is refered to as a motor starter
instead of a motor switch, and I just did a quick search on e-bay and
there are a bunch otherwise Grainger has 'em but ouch their expensive
Good Luck
Frank

jJ

[email protected] (JMWEBER987)

in reply to [email protected] (Frank) on 01/12/2004 8:36 PM

02/12/2004 5:02 AM

>ouch their expensive

Check to see if your present motor starter has a replacable coil. If so they
are generally removed by taking out a couple of screws off the cover. Check
the resistance of the coil and if it's open get a new one. Cheaper than a
whole starter. Keep track of the relationship of any parts that come out with
the coil (iron laminations)
Mike in Arkansas.

b

in reply to [email protected] (Frank) on 01/12/2004 8:36 PM

02/12/2004 8:09 AM

On 02 Dec 2004 05:02:53 GMT, [email protected] (JMWEBER987) wrote:

>>ouch their expensive
>
>Check to see if your present motor starter has a replacable coil. If so they
>are generally removed by taking out a couple of screws off the cover. Check
>the resistance of the coil and if it's open get a new one. Cheaper than a
>whole starter.




> Keep track of the relationship of any parts that come out with
>the coil (iron laminations)

digital cameras are great for this kind of documentation.

LH

"Lew Hodgett"

in reply to Merle on 01/12/2004 6:36 PM

02/12/2004 1:28 AM


"Merle" writes:

> My new band saw has a three phase 3 HP motor. The magnetic switch is
> broken (the saw runs fine if I bypass the switch).

You need a magnetic motor starter complete with a start/stop switch.

NEMA size 0 will do the job.

Any decent industrial electrical distributor can help you.

BTW, you need the FLA shown on the nameplate to select the correct overload
heaters.

Don't be shocked at a $200 price tag, it will be within 20% of that.

HTH

Lew




Mb

Merle

in reply to Merle on 01/12/2004 6:36 PM

02/12/2004 10:51 AM

In article <[email protected]>,
John <[email protected]> wrote:

> Betcha Grainger or McMaster-Carr has them as well. MiniMax also sells
> 3phase machines, betcha they also could supply a switch
>
> However, BEST folks for a new switch that will FIT would be the folks
> who made/sold the saw, have you contacted them???

Not yet, it is in fact a mini-max (or rather SCMI) machine, though the
starter is not original. I think the terminology lesson will help.

Thanks gyys!

m

Mb

Merle

in reply to Merle on 01/12/2004 6:36 PM

02/12/2004 10:54 AM

In article <[email protected]>,
Nova <[email protected]> wrote:

> Merle wrote:
>
> > My new band saw has a three phase 3 HP motor. The magnetic switch is
> > broken (the saw runs fine if I bypass the switch).
> >
> > I can't find a source of three phase magnetic switches. Anyone have one
> > to sell, or can offer a commercial source (no luck on ebay for a week)
>
> Grizzly Tools:
>
> http://www.grizzly.com/products/items-list.cfm?&listtype=keyword&keywords=swi
> tch&StartRow=11
>
> --
> Jack Novak
> Buffalo, NY - USA
> (Remove "SPAM" from email address to reply)


Thanks Jack! $60 Though I think I'm going to have a crack at repairing
the one that's on there

m


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