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.

  • Eaton / Moeller DILM150-XHI20 auxiliary

    DILM150-XHI20

    Eaton / Moeller DILM150-XHI20 two-pole auxiliary contact block with 2 normally open contacts and screw terminals. This front mounted auxiliary snaps onto any Moeller DILM contactor (from 40 to 150 AMPS) and Eaton XTCE contactors up to frame G and...

    MSRP: $52.00
    $17.20
    Add to Cart
  • Eaton XTCEXFAC04 Auxiliary Contact

    XTCEXFAC04

    Eaton XTCEXFAC04 four-pole auxiliary contact block with 4 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 terminals. Only...

    MSRP: $66.50
    $24.44
    Add to Cart
  • BFX1022

    BFX1022

    Lovato BFX1022 IEC rated 4-pole auxiliary contact with 2 normally open (N.O.) and 2 normally closed (N.C.) contacts and screw terminals. For front center mounting on BF09, BF12, BF18, BF25, BF32 AND BF38 contactors for additional 2 N.O. and 2 N.C...

    MSRP: $30.33
    $25.75
    Add to Cart
  • Allen Bradley 100-FA20 auxiliary contact Allen Bradley 100-FA20 side label

    100-FA20

    The Allen Bradley 100-FA20 is a front mounted, two pole auxiliary contact with 2 normally open contacts.  With screw terminals and snap on installation, this contact block easily installs onto any AB 100-C series contactor for quick installation and...

    MSRP: $31.49
    $18.16
    Add to Cart
  • Eaton/Moeller 11DILE auxiliary contact Eaton/Moeller 11DILE dimensions

    11DILE

    Eaton/Moeller 11DILE front mounted auxiliary contact block with 1 normally open (N.O.) and 1 normally closed contacts (N.C.) and screw terminals.  This two pole auxiliary contact snaps on to the front of any DILEM miniature contactor or DILER...

    MSRP: $40.00
    $13.23
    Add to Cart
  • Siemens 3RH1921-1FA31auxiliary contact

    3RH1921-1FA31

    Siemens 3RH1921-1FA31 front mounted auxiliary contact comes with 3 normally open and 1 normally closed auxiliaries, screw terminals and mounts to any Siemens 3RT1 Size S0, S2, or S3 3 pole contactor.  This four pole contact block snaps onto the...

    MSRP: $47.50
    $28.09
    Add to Cart
  • Siemens 3RH2911-1GA31 auxiliary

    3RH2911-1GA31

    Siemens 3RH2911-1GA31 four pole auxiliary contact block with 3 normally open (N.O.) and 1 normally closed contacts.  This Siemens Sirius auxiliary mounts to the front of any 3RH2122, 3RH2131 or 3RH2140 four pole industrial control relay and provides...

    MSRP: $42.00
    $18.52
    Add to Cart
  • Siemens 3RH2911-1GA40 auxiliary

    3RH2911-1GA40

    Siemens 3RH2911-1GA40 four pole auxiliary contact block with 4 normally open contacts.  This Siemens Sirius auxiliary mounts to the front of any 3RH2122, 3RH2131 or 3RH2140 four pole industrial control relay and provides an additional 4 signalling...

    MSRP: $42.00
    $18.52
    Add to Cart
  • Eaton / Moeller DILM150-XHI04 auxiliary

    DILM150-XHI04

    Eaton / Moeller DILM150-XHI04 four-pole auxiliary contact block with 4 normally closed contacts and screw terminals. This front mounted auxiliary snaps onto any Moeller DILM contactor (from 40 to 150 AMPS) and Eaton XTCE contactors up to frame G and...

    MSRP: $92.00
    $30.43
    Add to Cart
  • Eaton/Moeller 11DILEM auxiliary contact Eaton/Moeller 11DILEM dimensions

    11DILEM

    Eaton/Moeller 11DILEM front mounted auxiliary contact block with 1 normally open (N.O.) and 1 normally closed contacts (N.C.) and screw terminals.  This two pole auxiliary contact snaps on to the front of any DILEM miniature contactor and only one...

    MSRP: $40.00
    $13.23
    Add to Cart