Contactors

In simple terms, a contactor, contactor switch or contactor relay is a device designed for switching an electrical circuit on or off. They are part of the relay family, but the main difference is that a contactor is used in applications with higher current capacity is involved. Contactors are typically used for motors, lighting circuits, heating, and other electrical loads. A contactor can function on its own or as a power control device or as part of a motor starter.

RS Components offer a comprehensive range of high-quality electrical contactors from industry-leading brands including Schneider Electric, Siemens, Eaton, ABB, and Allen Bradley. We also stock a selection of accessories used to enhance the function of the contactor including, Contactor Overload Relays, auxiliary contacts, mechanical interlocks, and much more.

What are electrical contactors?

Designed to be connected to high-current load devices, contactors incorporate spring-loaded contacts that make or break power supply lines to a load. These contacts are designed to open and close very rapidly to assist with arc suppression, ensuring the contactor's ability to interrupt heavy motor currents with minimal damage over a longer life cycle. In any device that is frequently turned off and on, a contactor is often employed, and different contactor configurations are designed for different current requirements. From uses in basic light switches to complex applications such as controlling electromagnets, contactors are highly versatile.

How do contactors work?

Contactors, unlike standard relays, are specifically designed to connect to high current load devices. Used in larger-scale control circuit applications, a contactor is a switch that can be controlled remotely, specifically designed to switch a large amount of electrical power through its contacts. If a device can switch more than 10 amperes, it is called a contactor. These devices also feature high coil voltages which are rare within relays.

Contactor Specifications

There are various types of contactors, and each type will have its own set of specifications depending on your application. Some key specifications are

  • AC Contactor or DC Contactor with coils including 12 V, 24 V, 48 V, 110 V, 240 V, 400 V, and 440 V.
  • Reversing or non-reversing functionality.
  • AC3 and AC1 categories
  • Contactors with 2 poles, 3 poles 4 poles, and even 8 and 10 pole variants.
  • Various contact configurations.
  • IEC standards

...
顯示內容 隱藏內容

篩選條件

正在檢視 1 - 20,共 4111 項產品
Results per page
Description Price Coil Voltage Contact Current Rating Number of Poles Power Rating Series Normal State Configuration Pole and Throw Configuration Contact Voltage Rating Function Number Of Auxiliary Contacts Range Auxiliary Contact Configuration Mounting Style Length
RS庫存編號 400-1495
製造零件編號LC1D09F7
HK$377.34
單位
110 V ac 9 A 3 4 kW LC1D 3NO - 690 V ac - 2 TeSys D - - 77mm
RS庫存編號 608-9958
製造零件編號LC1F1154
HK$4,881.53
單位
- 200 A 4 - LC1F 4NO - 1 kV ac - - TeSys F - - 162mm
RS庫存編號 916-0369
製造零件編號EUC3-63-4NCP
BrandEuropa
HK$1,030.26
單位
230 V ac 63 A 4 40 kW - 4NC - 400 V ac - - - - - 54mm
RS庫存編號 706-1377
製造零件編號3RT2026-2BB40
BrandSiemens
HK$930.71
單位
24 V dc 25 A 3 11 kW 3RT2 3NO - 400 V ac - 2 SIRIUS Innovation - - 102mm
RS庫存編號 665-8059
製造零件編號LC1D50AM7
HK$1,355.40
單位
230 V ac 50 A 3 22 kW LC1D 3NO - 690 V ac - 2 TeSys D - - 122mm
RS庫存編號 493-0258
製造零件編號277129 & DILM25-10(110V50HZ,120V60HZ)
BrandEaton
HK$831.49
單位
110 V ac 25 A 3 11 kW DILM 3NO - 400 V ac - 1 XStart - - 85mm
RS庫存編號 400-1603
製造零件編號LC1D32F7
HK$1,137.65
單位
110 V ac 32 A 3 15 kW LC1D 3NO - 690 V ac - 2 TeSys D - - 85mm
RS庫存編號 467-9313
製造零件編號051650 & DILEEM-01-G(24VDC)
BrandEaton
HK$394.91
單位
24 V dc 6.6 A 1 3 kW DILEEM 3NO - 690 V ac - 1 XStart - - 58mm
RS庫存編號 323-016
製造零件編號010005 & DILEM-10(24V50HZ)
BrandEaton
HK$355.29
單位
24 V ac 9 A 3 4 kW DILEM 3NO - 400 V ac - 1 XStart - - 58mm
RS庫存編號 665-8046
製造零件編號LC1D50AF7
HK$1,819.59
單位
110 V ac 50 A 3 22 kW LC1D 3NO - 690 V ac - 2 TeSys D - - 122mm
RS庫存編號 685-1551
製造零件編號BF0910A230
BrandLovato
HK$296.94
單位
230 V ac 9 A 3 4 kW BF 3NO - 440 V ac - 1 Orange - - 81mm
RS庫存編號 791-2884
製造零件編號A9C22012
HK$610.69
單位
12 V ac 16 A 2 - iCT 2NO - 250 V ac - - Acti 9 - - 18mm
RS庫存編號 467-9341
製造零件編號010343 & DILEM-01-G(24VDC)
BrandEaton
HK$423.02
單位
24 V dc 9 A 4 4 kW DILEM 3NO - 220 V dc, 500 V ac - 1 XStart - - 58mm
RS庫存編號 394-9807
製造零件編號LC1D09BD
HK$1,041.15
單位
24 V dc 9 A 3 4 kW LC1D 3NO - 690 V ac - 2 TeSys D - - 77mm
RS庫存編號 744-7582
製造零件編號LC1DT40JD
HK$1,593.71
單位
12 V dc 40 A 4 - LC1D 4NO - 690 V ac/dc - 2 TeSys D 1NO - 91mm
RS庫存編號 706-1122
製造零件編號3RT2016-1BB41
BrandSiemens
HK$387.20
單位
24 V dc 9 A 3 4 kW (AC3) 3RT2 3NO - 400 V ac - 1 SIRIUS Innovation - - 57.5mm
RS庫存編號 394-9813
製造零件編號LC1D09B7
HK$401.87
單位
24 V ac 9 A 3 4 kW LC1D 3NO - 690 V ac - 2 TeSys D - - 77mm
RS庫存編號 400-1928
製造零件編號LC1D18BL
HK$789.23
單位
24 V dc 18 A 3 7.5 kW LC1D 3NO - 690 V ac - 2 TeSys D - - 77mm
RS庫存編號 513-0049
製造零件編號277774 & DILM40(230V50/60HZ)
BrandEaton
HK$1,439.61
單位
230 V ac 40 A 3 18.5 kW DILM 3NO - 400 V ac - - XStart - - 115mm
RS庫存編號 394-9649
製造零件編號LC1D32P7
HK$1,122.46
單位
230 V ac 32 A 3 15 kW LC1D 3NO - 690 V ac - 2 TeSys D - - 85mm