Auxiliary Contacts

Looking to expand the functionality of your existing contactors or motor starters? Our selection of Auxiliary Contacts offers simple, cost-effective add-ons for status indication, interlocking, and circuit logic.

These factory-new auxiliary contact blocks are compatible with popular contactor series from brands like Allen Bradley, Eaton, and Sprecher + Schuh. Choose from front or side-mount options, multiple contact configurations, and snap-on designs for quick, tool-free installation.

  • Available in 1NO, 1NC, 2NO/2NC and mixed configurations
  • Enhances safety and control logic in motor circuits
  • UL recognized and built for long-cycle performance

Browse our in-stock Auxiliary Contacts now and get fast shipping and expert assistance for your application.

  • Schneider Electric LADN31 auxiliary contact

    LADN31

    Schneider Electric LADN31 four pole auxiliary contact block with 3 normally open and 1 normally closed contacts. This front mounted auxiliary contact block snaps onto any LC1D09 through LC1D95 3 pole contactor, LC1DT20 through LC1DT40 4 pole contactor...

    MSRP: $41.50
    $22.21
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  • Moeller DILM32-XHI22 auxiliary contact

    DILM32-XHI22

    Eaton / Moeller DILM32-XHI22 four-pole auxiliary contact block with 2 normally open and 2 normally closed contacts and screw terminals. This front mounted auxiliary snaps onto any DILM contactor (up to 32 AMPS) and Eaton XTCE contactors up to frame C and...

    MSRP: $92.00
    $30.43
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  • Siemens 3RH2911-1HA11 auxiliary

    3RH2911-1HA11

    Siemens 3RH2911-1HA11 2 pole top mounted auxiliary switch blocks for front mounting on S00 (3RT2015, 3RT2016, 3RT2017, 3RT2018) contactors. Contains 1 N.O. and 1 N.C. contacts. Click here to view a catalog page on this auxiliary The auxiliary switch...

    MSRP: $29.00
    $14.87
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  • LAD9R1V LAD9R1V

    LAD9R1V

    Schneider Electric LAD9R1V Electrical and mechanical interlock for reversing contactors. The LAD9R1V Schneider electrical/mechanical interlock works on all LC1D09, LC1D12, LC1D18, LC1D25, LC1D32 contactors.Features and BenefitsD-line contactors and...

    MSRP: $45.50
    $26.57
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  • C320KG3 C320KG3

    C320KG3

    Eaton / Cutler Hammer C320KG3 Series A2 two pole side mounted auxiliary contact with 1 N.O. and 1 N.C. contact. Fits all C25D Definite Purpose contactors from 15 A up to 75A. Click here to view a PDF file of this Cutler Hammer Auxiliary contactSpend...

    MSRP: $104.19
    $37.50
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  • Eaton XTCEXFAC22 Auxiliary Contact

    XTCEXFAC22

    Eaton XTCEXFAC22 four-pole auxiliary contact block with 2 normally open and 2 normally closed contacts and screw terminals. This front mounted auxiliary snaps onto any Eaton XTRE 4 pole relay or XTCE contactors up to frame C and comes with screw...

    MSRP: $66.50
    $24.44
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  • Benshaw RSC-A4 front mounted auxiliary contact

    RSC-A4

    BENSHAW AUXILIARY CONTACT - TOP MOUNT - 2 N.O. & 2 N.C - FOR CONTACTORS RSC9-RSC85 Click here to view a PDF file for the Benshaw series of auxiliary contacts Benshaw contactors are used for controlling single and three phase motors and for...

    MSRP: $60.00
    $37.45
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  • Allen Bradley 100-FA11 auxiliary contact Allen Bradley 100-FA11 side label

    100-FA11

    The Allen Bradley 100-FA11 is a front mounted, two pole auxiliary contact with 1 normally open and 1 normally closed contacts.  With screw terminals and snap on installation, this contact block easily installs onto any AB 100-C series contactor for...

    MSRP: $31.49
    $18.16
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  • Siemens 3RH1921-1DA11 auxiliary contact

    3RH1921-1DA11

    Siemens 3RH1921 side mounted auxiliary contact block Siemens 3RH1921-1DA11 side mounted auxiliary contact with 1 N.O. and 1 N.C. contact set. For use with the Siemens Sirius 3RT1 line of IEC rated contactors from sizes S0-S12. Click here to view a PDF...

    MSRP: $38.00
    $23.59
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  • Schneider Electric LADN20 auxiliary contact

    LADN20

    Schneider Electric LADN20 two pole auxiliary contact block with 2 normally open contacts. This front mounted auxiliary contact block snaps onto any LC1D09 through LC1D95 3 pole contactor, LC1DT20 through LC1DT40 4 pole contactor and CAD32 through CAD50 5...

    MSRP: $20.70
    $12.21
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