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.

  • Siemens 3RT2015-1AP61 electrical contactor Siemens 3RT2015-1AP61 comparison

    3RT2015-1AP61

    Siemens 3RT2015-1AP61 7 AMP contactor with 1 normally open base mounted auxiliary and a 220v50Hz/240v60Hz AC coil. This Sirius 3-pole contactor has screw terminals, mounts on DIN rail and is rated for 2 H.P. @ 230 volt, 3 H.P. @ 460 volt 3-Phase. The...

    MSRP: $92.00
    $48.85
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  • Siemens 3RT2016-1AK62 electrical contactor Siemens 3RT2016-1AK62 comparison

    3RT2016-1AK62

    Siemens 3RT2016-1AK62 9 AMP contactor with 1 normally closed base mounted auxiliary and a 110v50Hz/120v60Hz 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 3RT2017-1AV61 electrical contactor Siemens 3RT2017-1AV61 comparison

    3RT2017-1AV61

    Siemens 3RT2017-1AV61 12 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, 7.5 H.P. @ 460 volt 3-Phase. The...

    MSRP: $119.00
    $67.06
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  • Siemens 3RT2018-1AP61 electrical contactor Siemens 3RT2018-1AP61 front dimensions

    3RT2018-1AP61

    Siemens 3RT2018-1AP61 16 AMP contactor with 1 normally open base mounted auxiliary and a 220v50Hz/240v60Hz 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: $142.00
    $84.70
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  • Siemens 3RT2025-1AM20 contactor Siemens 3RT2025-1AM20 comparison

    3RT2025-1AM20

    Siemens 3RT2025-1AM20 Sirius 16 AMP size S0 contactor with a 208v50/60Hz AC coil and 1 N.O./1 N.C. base mounted auxiliary contact. This IEC 3 pole contactor is rated for 5 H.P. @ 230 volt, 10 H.P. @ 460 volt 3 phase, has screw terminals and mounts on...

    MSRP: $192.00
    $105.70
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  • Siemens 3RT2027-1BE40 contactor Siemens 3RT2027-1BE40 front dimensions

    3RT2027-1BE40

    Siemens 3RT2027-1BE40 Sirius 32 AMP size S0 contactor with a 60 volt DC coil and 1 N.O./1 N.C. base mounted auxiliary contact. This IEC 3 pole contactor is rated for 10 H.P. @ 230 volt, 20 H.P. @ 460 volt 3 phase, has screw terminals and mounts on...

    MSRP: $310.00
    $171.96
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  • Siemens 3RT2035-1AG20 contactor Siemens 3RT2035-1AG20 front dimensions

    3RT2035-1AG20

    Siemens 3RT2035-1AG20 40 AMP Size 2 contactor with a 110v50/60Hz AC coil and 1 normally open and 1 normally closed front mounted auxiliary contact.  This Sirius 3-pole contactor comes with screw terminals, mounts on standard 35MM din rail and...

    MSRP: $247.00
    $152.02
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  • Siemens 3RT2035-1AM20 contactor Siemens 3RT2035-1AM20 front dimensions

    3RT2035-1AM20

    Siemens 3RT2035-1AM20 40 AMP Size 2 contactor with a 208v50/60Hz AC coil and 1 normally open and 1 normally closed front mounted auxiliary contact.  This Sirius 3-pole contactor comes with screw terminals, mounts on standard 35MM din rail and...

    MSRP: $247.00
    $152.02
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  • Siemens 3RT2035-1AN20 contactor Siemens 3RT2035-1AN20 front dimensions

    3RT2035-1AN20

    Siemens 3RT2035-1AN20 40 AMP Size 2 contactor with a 220v50/60Hz AC coil and 1 normally open and 1 normally closed front mounted auxiliary contact.  This Sirius 3-pole contactor comes with screw terminals, mounts on standard 35MM din rail and...

    MSRP: $247.00
    $152.02
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  • Siemens 3RT2036-1AN20 contactor Siemens 3RT2036-1AM20 front dimensions

    3RT2036-1AN20

    Siemens 3RT2036-1AN20 Sirius 50 AMP size S2 contactor with a 220v50/60Hz AC coil and 1 N.O./1 N.C. base mounted auxiliary contact. This IEC 3 pole contactor is rated for 15 H.P. @ 230 volt, 40 H.P. @ 460 volt 3 phase, has screw terminals and mounts on...

    MSRP: $289.00
    $194.70
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  • Siemens 3RT2036-1AV60 contactor Siemens 3RT2036-1AV60 front dimensions

    3RT2036-1AV60

    Siemens 3RT2036-1AV60 Sirius 50 AMP size S2 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 15 H.P. @ 230 volt, 40 H.P. @ 460 volt 3 phase, has screw terminals and mounts on...

    MSRP: $289.00
    $194.70
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  • Siemens 3RT2038-1AM20 contactor Siemens 3RT2038-1AM20 front dimensions

    3RT2038-1AM20

    Siemens 3RT2038-1AM20 80 AMP Size 2 contactor with a 208v50/60Hz AC coil and 1 normally open and 1 normally closed front mounted auxiliary contact.  This Sirius 3-pole contactor comes with screw terminals, mounts on standard 35MM din rail and...

    MSRP: $405.00
    $285.67
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