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    fisherprice's Avatar
    fisherprice Posts: 2, Reputation: 1
    New Member
     
    #1

    Jan 5, 2009, 06:37 AM
    Need 220v thermostat for water pump
    I have a 1 hp 240v ice eater that draws 5.7 running amps. This is used to keep the water moving around a boat dock so the area will not ice up. I don't want to let the unit run while the temp is above 35 degrees but want it to turn on at 35 degrees. I have a 110v thermostat but they tell me no one make a 240v. Is that correct? Can you tell me where to find one? Thanks, Greg
    stanfortyman's Avatar
    stanfortyman Posts: 5,598, Reputation: 279
    Electrical & Lighting Expert
     
    #2

    Jan 5, 2009, 06:40 AM
    A thermostat with that low of a temperature is going to be hard to find.

    If there is a disconnect for this unit nearby, even a plug and receptacle, you CAN use the single pole thermostat to control the 240v pump.
    fisherprice's Avatar
    fisherprice Posts: 2, Reputation: 1
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    #3

    Jan 5, 2009, 06:45 AM
    Quote Originally Posted by stanfortyman View Post
    A thermostat with that low of a temperature is going to be hard to find.

    If there is a disconnect for this unit nearby, even a plug and receptacle, you CAN use the single pole thermostat to control the 240v pump.
    I have a outlet that the unit is plugged into. That is where I was going to install the thermostst. My idea was to plug the unit into the thermostat then plug the thermostat into the outlet.
    stanfortyman's Avatar
    stanfortyman Posts: 5,598, Reputation: 279
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    #4

    Jan 5, 2009, 03:29 PM
    But if it is a 120v thermostat, how can you plug it into a 240v receptacle?
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #5

    Jan 5, 2009, 05:41 PM

    If you have a 120 thermostat that will work. Usually controls are 120V or lower. You can wire a 240 to 120 step down transformer and a 1 HP motor starter.

    You would probably need an enclosure that's NEMA 4 or 4X rated.
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #6

    Jan 5, 2009, 05:49 PM
    Examples:

    Love TSX-21240 Temperature Switch

    Fuji Manual Motor Starters Overview

    Metal Products

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