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Old 02-22-2009, 01:52 PM   #1
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Motor starter and control switch..


Hi gang,

New here but not new to the DIY world. I have a 7 1/2 HP 240/1/60 motor. The tag rates current draw at 32/29. My panel is ~80 feet from where the motor will go. Should I use a 50A service? Because the control room where the motor will ge controlled is another 20 feet from the motor, I suspect I'll want a 120V magnetic starter at the motor and a remote pushbutton switch at the control room. I have a Graingers close and have perused the starter selection but don't see an application for remote switch. All the switches are manual magnetic. Am I missing something??

Thanks,

Cam

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Old 02-22-2009, 02:04 PM   #2
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Motor starter and control switch..


You can use a selector switch or a maintained push button if you want to use just one switch. You could also use 2 push button with a start/stop pushbuttons. A 50 amp circuit will be good.

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Old 02-22-2009, 02:08 PM   #3
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Motor starter and control switch..


Thanks.. I'm more confused about the contactor/starter. They all seem to be manually actuated..

Cam
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Old 02-22-2009, 02:19 PM   #4
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Motor starter and control switch..


How much are you willing to spend? There are many options for you. I personally like IEC style combo starters. Smaller and have disconnect, overloads all in one.
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Old 02-22-2009, 03:01 PM   #5
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Motor starter and control switch..


Oh. I knew I was going to spend $300 - $400, anyhow. Less is better... lol
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Old 02-22-2009, 03:09 PM   #6
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Motor starter and control switch..


I would just get a manual starter. Like this http://www.grainger.com/Grainger/items/2MNH6

or like this http://www.grainger.com/Grainger/items/1H412

Of course sized for your motor.

FYI IEC starters have ol's built in, NEMA starters, heaters have to be purchased seperately unless you get a solid state.


Last edited by wirenut1110; 02-22-2009 at 03:11 PM. Reason: FYI
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