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Contactors

All electric motors have a lifespan, and to keep them running efficiently and safely they must be protected. One of the main causes of failure is electrical overload, sometimes called overcurrent. When a motor draws more current than it is designed to handle it causes the temperature to build-up resulting in overheating. This damages motor windings and coils. It is important to protect the motor and its circuit, and this is where the use of contactor overload relays can help.RS Components offer an extensive range of high-quality contactor overload relays from leading industry brands including Schneider Electric, Siemens, ABB, Eaton, Lovato, and Rockwell Automation.What is overload protection?Overload is where a motor draws a high current above its rated value for an extended amount of time. Overload causes overheating of the motor causing damage. To prevent this from happening devices such as contactor relays are specifically designed for industrial control motor protection. They are used with contactors as part of a motor starter or in a control panel or centre.What are the different types of contactor overload relays?The motor protection devices can be classified into two main types which are thermal types and electronic types.Thermal overload relaysUtilise a bi-metallic plate located near a heating element. When excessive current is passed through the heating element N/C (Normally Closed) contacts switch over and opens contacts. This interrupts power from flowing to the contactor’s control circuit. Thermal overloads usually offer an adjustable current range as well as a manual or automatic reset option.Electronic RelaysElectronic overload relays don’t have a bi-metallic mechanism, Instead, they work by using components such as temperature sensors to measure the load current. They are generally more accurate than thermal devices and they usually have a wider current range, a selectable trip class provides enhanced trip protection against single phasing against the motor.

Showing 49–72 of 613 results

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  • Product image for 4 POLE NO COIL CONTACTOR,25A 24VAC COIL

    Schneider Electric TeSys D LC1D 4 Pole Contactor - 25 A, 24 V ac Coil, 4NO

    RS Stock No.
    4547799
    Brand
    Schneider Electric
    Mfr. Prt No.
    LC1DT25B7
    VND
    1,756,678.88
  • Product image for 1 NO CONTACTOR,5.5KW 110VAC COIL

    ABB A Line A9 3 Pole Contactor - 27 A, 110 V ac Coil, 3NO, 5.5 kW

    RS Stock No.
    4450948
    Brand
    ABB
    Mfr. Prt No.
    1SBL161001R8410
    VND
    2,459,196.96
  • Product image for MINIATURE CONTACTOR,4KW 16A 240VAC COIL

    ABB B Range B7 3 Pole Contactor - 9 A, 230 V ac Coil, 3NO, 5.5 kW

    RS Stock No.
    4450881
    Brand
    ABB
    Mfr. Prt No.
    GJL1311001R8100 B7-30-10-80
    VND
    1,625,268.48
  • Product image for COIL ADAPTOR FOR ELCT TIMER,4-18.5KW

    Schneider Electric Contactor Wiring Kit for use with LC1 Series

    RS Stock No.
    4002038
    Brand
    Schneider Electric
    Mfr. Prt No.
    LAD4BB
    VND
    441,615.68
  • Product image for AC CONTROLLED CONTACTOR,115A 230VAC COIL

    Schneider Electric TeSys D LC1D 3 Pole Contactor - 115 A, 230 V ac Coil, 3NO, 55 kW

    RS Stock No.
    4001518
    Brand
    Schneider Electric
    Mfr. Prt No.
    LC1D115P7
    VND
    10,688,749.28
  • Product image for 3 POLE CONTACTOR,2.2KW,6A,24VDC,1NO AUX

    Schneider Electric TeSys K LP1K 3 Pole Contactor - 6 A, 24 V dc Coil, 3NO, 3 kW

    RS Stock No.
    3635615
    Brand
    Schneider Electric
    Mfr. Prt No.
    LP1K06103BD
    VND
    1,156,987.04
  • Product image for Schneider Electric TeSys LC1D 3 Pole Contactor - 25 A, 220 V ac Coil, 3NO, 5.5 kW

    Schneider Electric TeSys LC1D 3 Pole Contactor - 25 A, 220 V ac Coil, 3NO, 5.5 kW

    RS Stock No.
    1884727
    Brand
    Schneider Electric
    Mfr. Prt No.
    LC1D096M7
    VND
    1,326,957.28
  • Product image for Schneider Electric TeSys Contactor - 10 A, 220 V ac Coil, 3NO + 2NC

    Schneider Electric TeSys Contactor - 10 A, 220 V ac Coil, 3NO + 2NC

    RS Stock No.
    1884718
    Brand
    Schneider Electric
    Mfr. Prt No.
    CAD326M7
    VND
    1,927,416.48
  • Product image for CONTACTOR-4NO 20A AC1 POLES

    Schneider Electric TeSys LC1K 4 Pole Contactor - 20 A, 220 → 240 V ac Coil, 4NO

    RS Stock No.
    1884691
    Brand
    Schneider Electric
    Mfr. Prt No.
    LC1K09004U7
    VND
    1,204,371.52
  • Product image for CONTACTOR-3NO 9A AC3 POLES

    Schneider Electric TeSys LC1K 3 Pole Contactor - 20 A, 220 V ac Coil, 3NO, 4 kW

    RS Stock No.
    1884688
    Brand
    Schneider Electric
    Mfr. Prt No.
    LC1K0910M7
    VND
    952,677.44
  • Product image for SAFETY CONTACTOR, 4 NO + 4 NC, ELECTRONI

    Eaton DILAS Safety Contactor - 4 A, 24 V dc Coil

    RS Stock No.
    1875330
    Brand
    Eaton
    Mfr. Prt No.
    191720 DILAS-R44(24VDC)
    VND
    3,066,562.40
  • Product image for CONTACTOR, 3-POLE + 1 NC, 4 KW / 400 V /

    Eaton DILM 3 Pole Contactor - 9 A, 230 V ac Coil, 3NO, 4 kW

    RS Stock No.
    1788030
    Brand
    Eaton
    Mfr. Prt No.
    276733 DILM9-01(230V50/60HZ)
    VND
    1,420,958.88
  • Product image for AUXILIARY CONTACT MODULE, 1 NO + 1 NC, E

    Eaton Auxiliary Contact - 1NC + 1NO, 2 Contact, Front Mount, 10 A dc, 4 A ac

    RS Stock No.
    1788010
    Brand
    Eaton
    Mfr. Prt No.
    110140 DILA-XHIR11
    VND
    767,743.68
  • Product image for SAFETY CONTACTOR 3P 9AMP 2NO/2NC AUX 100

    ABB Jokab AFS 3 Pole Safety Contactor - 25 A, 100 → 250 V dc, 100 → 250 V @ 50/60 Hz Coil, 3NO

    RS Stock No.
    1753203
    Brand
    ABB Jokab
    Mfr. Prt No.
    1SBL137082R1322 AFS09-30-22-13
    VND
    1,886,362.72
  • Product image for SAFETY CONTACTOR 3P 9AMP 2NO/2NC AUX 24-

    ABB Jokab AFS 3 Pole Safety Contactor - 25 A, 20 → 60 V dc, 24 → 60 V @ 50/60 Hz Coil, 3NO

    RS Stock No.
    1753201
    Brand
    ABB Jokab
    Mfr. Prt No.
    1SBL137082R1122 AFS09-30-22-11
    VND
    2,661,204.48
  • Product image for Schneider Electric TeSys D Green LC1D 3 Pole Contactor - 25 A, 230 V ac Coil, 3NO, 11 kW

    Schneider Electric TeSys D Green LC1D 3 Pole Contactor - 25 A, 230 V ac Coil, 3NO, 11 kW

    RS Stock No.
    1353951
    Brand
    Schneider Electric
    Mfr. Prt No.
    LC1D25KUE
    VND
    3,729,753.28
  • Product image for CONTACTOR 50A 3P AC3 24VDC COIL

    Schneider Electric TeSys D Green LC1D 3 Pole Contactor - 50 A, 24 V dc Coil, 3NO, 22 kW

    RS Stock No.
    1353962
    Brand
    Schneider Electric
    Mfr. Prt No.
    LC1D50ABBE
    VND
    6,064,062.40
  • Product image for CONTACTOR 60A 230V 4P 4NO S2 1NO+1NC

    Siemens SIRIUS Innovation 3RT2 4 Pole Contactor - 60 A, 230 V ac Coil, 4NO

    RS Stock No.
    1229469
    Brand
    Siemens
    Mfr. Prt No.
    3RT2336-1AP00
    VND
    8,641,049.12
  • Product image for 100A HERMETIC SEALED CONTACTOR SIDE MT

    TE Connectivity KILOVAC LEV100 Contactor, 12 V dc Coil

    RS Stock No.
    0420390
    Brand
    TE Connectivity
    Mfr. Prt No.
    LEV100A4ANH 4-1618391-0
    VND
    4,326,759.36
  • Product image for CONTACTOR 12A 1NO+1NC 240V 50/60HZ

    Schneider Electric TeSys D LC1D 3 Pole Contactor - 12 A, 230 V ac Coil, 3NO, 5.5 kW

    RS Stock No.
    0187324
    Brand
    Schneider Electric
    Mfr. Prt No.
    LC1D12U7
    VND
    1,272,666.56

  • Schneider Electric Cover for use with LC1D09 → LC1D38, LC1D40A → LC1D65A, LC1DT20 → LC1DT40,

    VND
    0.00

  • Siemens SIRIUS Innovation 3RT2 3 Pole Contactor - 16 A, 110 V ac Coil, 3NO, 7.5 kW

    VND
    0.00

  • Schneider Electric TeSys K LP1K 3 Pole Contactor - 6 A, 12 V dc Coil, 1NO, 2.2 kW

    VND
    0.00