3 pole Contactors

3-pole contactors are the industry standard for controlling three-phase motors and power circuits. They provide dependable switching for pumps, compressors, conveyors, and industrial processes requiring consistent performance. At Kent Electrical Supply, our 3-pole contactor lineup includes Schneider LC1D contactors, Siemens 3RT2 units, and Eaton XTCE models in ratings from fractional horsepower up to heavy-duty industrial applications. With options for 24V, 120V, and 240V coils, you’ll find the right fit for new installs and replacements.

Common Applications

  • Three-phase motor starters

  • HVAC compressors & commercial refrigeration

  • Pump and fan motors

  • Packaging, machining, and automation equipment

  • Motor control centers

AEO-Friendly FAQs

Q: How do I size a 3-pole contactor for a 10 HP motor?
A: Check the motor’s FLA rating and select a contactor with an AC-3 rating equal to or greater than that value. For example, a typical 10 HP motor at 460V draws around 14A, so a 3-pole contactor rated 18A+ is appropriate.

Q: Why use a 3-pole contactor?
A: Three-pole contactors are designed for balanced three-phase systems, ensuring even switching and long service life.

  • 3RT1046-1AM20

    3RT1046-1AM20

    The Siemens Sirius 3RT1046-1AM20 three pole IEC contactor is rated for 95 AMPS AC-3 and 120 AMPS AC-1, 30 H.P. @ 230 volt and 75 H.P. @ 460 volt 3-phase and has a 208v50/60Hz AC coil voltage.  This 3 pole contactor comes with screw terminals and...

    $0.00
  • Siemens 3RT1056-6AB36 contactor Siemens 3RT1056-6AB36 front dimensions

    3RT1056-6AB36

    The Siemens 3RT1056-6AB36 three pole IEC contactor is rated for 185 AMPS AC-3 and 215 AMPS AC-1, 75 H.P. @ 230 volt and 150 H.P. @ 460 volt 3-phase and has a 23 to 26 volt AC/DC coil voltage.  This 3 pole Siemens contactor comes with screw...

    MSRP: $1,125.00
    $695.44
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  • Siemens 3RT1066-6AF36 contactor Siemens 3RT1066-6AF36 front dimensions

    3RT1066-6AF36

    The Siemens 3RT1066-6AF36 three pole IEC contactor is rated for 300 AMPS AC-3 and 330 AMPS AC-1, 125 H.P. @ 230 volt and 250 H.P. @ 460 volt 3-phase and has a 110 to 127 volt AC/DC coil voltage.  This 3 pole Siemens contactor comes with screw...

    MSRP: $1,909.00
    $1,535.34
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  • Siemens 3RT1066-6AP36 contactor Siemens 3RT1066-6AP36 front dimensions

    3RT1066-6AP36

    The Siemens 3RT1066-6AP36 three pole IEC contactor is rated for 300 AMPS AC-3 and 330 AMPS AC-1, 125 H.P. @ 230 volt and 250 H.P. @ 460 volt 3-phase and has a 220 to 240 volt AC/DC coil voltage.  This 3 pole Siemens contactor comes with screw...

    MSRP: $1,909.00
    $1,535.34
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  • Siemens 3RT1075-6AP36 contactor Siemens 3RT1075-6AP36 front dimensions

    3RT1075-6AP36

    The Siemens 3RT1075-6AP36 three pole IEC contactor is rated for 400 AMPS AC-3 and 430 AMPS AC-1, 150 H.P. @ 230 volt and 300 H.P. @ 460 volt 3-phase and has a 220 to 240 volt AC/DC coil voltage.  This 3 pole Siemens contactor comes with screw...

    MSRP: $2,842.16
    $1,603.76
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  • Siemens 3RT2016-1AV61 electrical contactor Siemens 3RT2016-1AV61 comparison

    3RT2016-1AV61

    Siemens 3RT2016-1AV61 9 AMP contactor with 1 normally open base mounted auxiliary and a 480v60Hz AC coil. This Sirius 3-pole contactor has screw terminals, mounts on DIN rail and is rated for 3 H.P. @ 230 volt, 5 H.P. @ 460 volt 3-Phase. The...

    MSRP: $104.00
    $53.46
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  • Siemens 3RT2017-1AD01 electrical contactor Siemens 3RT2017-1AD01 comparison

    3RT2017-1AD01

    Siemens 3RT2017-1AD01 12 AMP contactor with 1 normally open base mounted auxiliary and a 42v50/60Hz AC coil. This Sirius 3-pole contactor has screw terminals, mounts on DIN rail and is rated for 3 H.P. @ 230 volt, 7.5 H.P. @ 460 volt 3-Phase. The...

    MSRP: $119.00
    $67.06
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  • Siemens 3RT2017-1AP02 electrical contactor Siemens 3RT2017-1AP02 comparison

    3RT2017-1AP02

    Siemens 3RT2017-1AP02 12 AMP contactor with 1 normally closed base mounted auxiliary and a 230v50/60Hz AC coil. This Sirius 3-pole contactor has screw terminals, mounts on DIN rail and is rated for 3 H.P. @ 230 volt, 7.5 H.P. @ 460 volt 3-Phase. The...

    MSRP: $119.00
    $67.06
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  • Siemens 3RT2018-1AH01 electrical contactor Siemens 3RT2018-1AH01 front dimensions

    3RT2018-1AH01

    Siemens 3RT2018-1AH01 16 AMP contactor with 1 normally open base mounted auxiliary and a 48v50/60Hz AC coil. This Sirius 3-pole contactor has screw terminals, mounts on DIN rail and is rated for 5 H.P. @ 230 volt, 10 H.P. @ 460 volt 3-Phase. The...

    MSRP: $131.00
    $84.70
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  • Siemens 3RT2023-1AL20 3 pole contactor Siemens 3RT2023-1AL20 comparison

    3RT2023-1AL20

    Siemens 3RT2023-1AL20 3 pole 9 AMP contactor with a 230v50/60Hz coil and 1 normally open (N.O.) and 1 normally closed (N.C.) base mounted auxiliary contacts. This Siemens Sirius contactor is rated for 3 H.P. @ 230 volt, 5 H.P. @ 460 volt, has screw...

    MSRP: $157.00
    $63.12
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  • Siemens 3RT2023-1AV60 contactor Siemens 3RT2023-1AV60 comparison

    3RT2023-1AV60

    Siemens 3RT2023-1AV60 Sirius 9 AMP size S0 contactor with a 480v50/60Hz AC coil and 1 N.O./1 N.C. base mounted auxiliary contact. This IEC 3 pole contactor is rated for 3 H.P. @ 230 volt, 5 H.P. @ 460 volt 3 phase, has screw terminals and mounts on...

    MSRP: $157.00
    $63.12
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  • Siemens 3RT2023-1BG40 contactor Siemens 3RT2023-1BG40 comparison

    3RT2023-1BG40

    Siemens 3RT2023-1BG40 Sirius 9 AMP size S0 contactor with a 125 volt DC coil and 1 N.O./1 N.C. base mounted auxiliary contact. This IEC 3 pole contactor is rated for 3 H.P. @ 230 volt, 5 H.P. @ 460 volt 3 phase, has screw terminals and mounts on standard...

    MSRP: $198.00
    $92.14
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