Auxiliary Contacts

Contacts are the conductive pieces of material that form part of an electrically controlled switch. Auxiliary contacts form part of a contactor, which is a type of switch that can be controlled remotely.

Contactors are often used in very high-power circuits, and auxiliary contacts are the last phase of contact, used to reduce the power of the current. They have a lower current rating than regular power contacts, and can be used to de-energise the contactor.

How do auxiliary contacts work?

Auxiliary contacts are affixed to the main contacts and change state when the main contacts do. They pass the data from the circuit to a logic controller, which in turn gives instructions to the linked devices about whether to turn on or off.

Alternatively, they can be used as a standalone hardware control unit.

What are auxiliary contacts used for?

One common usage of auxiliary contacts is in push button controllers, where they can be built in to the start button.


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Description Price Number of Contacts Normal State Configuration Range Mounting Style Contact Current Rating Contact Voltage Rating Pole and Throw Configuration Terminal Type Minimum Operating Temperature Maximum Operating Temperature Operating Temperature Range Series External Dimensions External Length
RS庫存編號 759-011
製造零件編號LA1KN20
TWD262.00
單位
2 2NO - Clip On 10 A 600 V ac DP Screw - - - LA1K - -
RS庫存編號 493-0680
製造零件編號DILA-XHI22
BrandEaton
TWD471.00
單位
4 2NO/2NC - Front Mount 4 A ac, 10 A dc 220 V dc, 500 V ac 4PST Screw - - - DILA - -
RS庫存編號 373-2306
製造零件編號YM-300
TWD837.00
單位
- - - - - - - - - - - - - -
RS庫存編號 121-6868
BrandRS PRO
TWD183.00
單位
1 NC - DIN Rail Mount - - - Screw -25°C +60°C -25 +60 °C HRS - -
RS庫存編號 776-2963
製造零件編號A9N26929
TWD2,081.00
單位
2 CO Acti 9 DIN Rail Mount 6 A ac, 6 A dc 130 V dc, 415 V ac DPDT Clamp -37°C +70°C -37 +70 °C iC60 - -
RS庫存編號 395-0144
製造零件編號GVAE11
TWD308.00
單位
2 NO/NC TeSys Front Mount 2.5 A 60 V dc, 240 V ac DP Screw - - - GVAE - -
RS庫存編號 395-0122
製造零件編號GVAN11
TWD314.00
單位
2 NO/NC TeSys Side Mount 6 A 240 V dc, 690 V ac DP Screw - - - GVAN - -
RS庫存編號 394-9936
製造零件編號LADN11
TWD328.00
單位
2 NO/NC TeSys Front Mount 10 A - DP Screw - - -5 +60 °C LADN - -
RS庫存編號 394-9885
製造零件編號LADN31
TWD639.00
單位
4 3NO/NC TeSys Front Mount 10 A - 4P Screw -5°C +60°C - LADN - -
RS庫存編號 121-6867
BrandRS PRO
TWD183.00
單位
1 NO - DIN Rail Mount - - - Screw -25°C +60°C -25 +60 °C HRS - -
RS庫存編號 395-0352
製造零件編號GV2AF3
TWD111.00
單位
- - - - - - - - - - - GV2A - -
RS庫存編號 488-7384
製造零件編號2CDS200912R0001
BrandABB
TWD871.00
單位
2 NO/NC - Side Mount - - DP Screw - - - - - -
RS庫存編號 492-1692
製造零件編號NHI-E-10-PKZ0
BrandEaton
TWD290.00
單位
1 NO - Front Mount 1 A ac, 2 A dc 110 V dc, 240 V ac SPST Screw - - - - - -
RS庫存編號 791-2824
製造零件編號A9A26924
TWD1,366.00
單位
1 NO/NC Acti 9 DIN Rail Mount 2 A dc, 6 A ac 24 130 V dc, 240 415 V ac SPCO Screw -35°C +70°C -35 +70 °C iOF - -
RS庫存編號 392-8973
製造零件編號3RH1921-1CA01
BrandSiemens
TWD135.00
單位
1 NC Sirius Classic Snap-On - - SP Screw - - - 3RH1 - -
RS庫存編號 122-1054
製造零件編號BFB-11 EN
BrandWEG
TWD270.00
單位
2 NO/NC - Front Mount 10 A 690 V ac DPST Screw - - -25 → +55 °C BFB - -
RS庫存編號 706-0905
製造零件編號3RH2911-1HA11
BrandSiemens
TWD260.00
單位
2 NO/NC Sirius Innovation Snap-On 6 A dc, 10 A ac 250 V dc, 690 V ac DPST Screw -25°C +60°C -25 +60 °C 3RH2 - -
RS庫存編號 392-8967
製造零件編號3RH1921-1CA10
BrandSiemens
TWD135.00
單位
1 NO Sirius Classic Snap-On - - SP Screw - - - 3RH1 - -
RS庫存編號 711-6317
製造零件編號1SBN010110R1010
BrandABB
TWD181.00
單位
1 NO - Front Mount 6 A 600 V dc, 690 V ac SP Screw - - - CA4 - -
RS庫存編號 791-2837
製造零件編號A9A26927
TWD1,392.00
單位
2 NO/NC Acti 9 DIN Rail Mount 2 A dc, 6 A ac 24 → 130 V dc, 240 → 415 V ac DP Screw -35°C +70°C -35 → +70 °C iSD - -