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-   -   15/230v motor from 15amp? (https://www.askmehelpdesk.com/showthread.php?t=393164)

  • Sep 3, 2009, 10:52 AM
    woodyGuy
    15/230v motor from 15amp?
    Can I run a 15/230v motor from a table saw on 15amp breaker in a garage?
    It trips the breaker anytime I plug it in to any outlet in my garage.
    If not, what should I do or how would I be able to do it?

    Thanks
  • Sep 3, 2009, 11:33 AM
    hkstroud

    Well your garage outlets are not 230 (really 240) volts.
    That saw motor is probably a 15 amp 120 volt motor which can be rewired to 7.5 amp 240 volts. Run a dedicated line using 12/2 wire and a double pole 15 amp breaker. Line can be hardwired to saw or you can use a 240V outlet and plug. You could also rewire saw to 120 V. Wiring diagram is probably inside the cover plate of wire connection to motor or at the switch.
  • Sep 3, 2009, 01:46 PM
    woodyGuy
    No wiring diagram on motor or switch. All wires coming out of motor are black?
    How would I determine which wires are which?
    Thanks
  • Sep 3, 2009, 02:11 PM
    KISS

    Look closely on the motor wires. They may be fainty marked with designations such as T followed by a number.
  • Sep 3, 2009, 03:05 PM
    hkstroud

    Tel us every thing on the electrical nomenclature plate.
  • Sep 3, 2009, 03:10 PM
    woodyGuy

    Sure,
    HP 1.5 SPL
    VOLTS 15/230V
    Hz 60
    RPM 3450
    Amps 15 0/7.5

    That should cover it...

    Thanks
  • Sep 3, 2009, 03:13 PM
    woodyGuy
    Oh to answer Keepitsimple,

    Motor wires:
    (3) black wires - 1 - T2, 1 - T4, 1 - T8
    Then
    (3) more black wires - 1 -T3, 1 - T8, the last one
    No # just lettering.
  • Sep 3, 2009, 03:19 PM
    KISS

    VOLTS 15/230V is a typo or worn off number. 115/230
  • Sep 3, 2009, 03:23 PM
    hkstroud

    Kiss,
    You just answered my next question.
  • Sep 3, 2009, 03:24 PM
    hkstroud
    Woody, is there a little cover plate that covers where the wires go into the motor?
    What brand and model is this saw?
  • Sep 3, 2009, 03:28 PM
    woodyGuy

    It's a box that encloses all the wires, including some kind of reset switch.
    No diagrams anywhere.
  • Sep 3, 2009, 03:43 PM
    woodyGuy

    no, the motor has 2 holes where 3 of the wires come out into
    this box enclosure (about 2X3X2 inches).
  • Sep 3, 2009, 04:22 PM
    hkstroud

    Motor make and model number?
  • Sep 3, 2009, 04:31 PM
    KISS

    Wiring diagrams:
    http://www.stearns.rexnord.com/pdf/Cat_902/26-27.pdf


    You probably want dual voltage/thermal protection.

    Depending on what you want to wire if for, you have to pick 115 or 230 or low or high nameplate voltage.

    You also have to pick the shaft rotation. CW is when facing the shaft usually.
  • Sep 7, 2009, 11:24 AM
    woodyGuy

    Motor make is ROCKWELL.
    Model No. is 62-042, it is made by Lesson Elect. Corporation

    I think I would rather wire it for 115 V.

    Thanks again
  • Sep 7, 2009, 12:31 PM
    KISS

    You don't have 7 wires labeled T2, T3, T4, T5 and T8 and P1 and P2?

    As your facing the shaft of the motor, which direction do you want it to run. CW or CCW?
  • Sep 7, 2009, 12:51 PM
    woodyGuy

    Here is the config...

    T2, T4, T8 & WH tied together.

    T3, T5, & P2 tied together.

    BL + BL Off SW. then P1 + WH Off SW
  • Sep 7, 2009, 12:53 PM
    woodyGuy
    The shaft needs to rotate CCW as your'e facing it because of the blade on table saw.
  • Sep 7, 2009, 04:46 PM
    KISS

    You seem to be wired for 120 V, clockwise, but motors are sometimes wired no-conventionlly.

    So, for the moment the motor should run. Backwards usually won't cause the saw to lock up.

    Let's see what happens, if you do the following.

    Do this VERY CAREFULLY!

    Start the motor spinning by hand (Use a push stick) and then apply power once the blade is moving. Don't care which way you cause it to spin by hand.

    Does it run?
  • Sep 7, 2009, 05:12 PM
    woodyGuy
    I'm a little confused with your instructions.

    The motor does run when powered up, so long as it's not attached to the belt, blade, etc. (and it rotates in a CCW direction and does not 'trip' the breaker at all).

    I have plugged it several times w/out the belt or blade attached, so I know it works.

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