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 Width External Dimensions
RS庫存編號 482-4434
製造零件編號1SCA022353R4970
BrandABB
TWD362.00
單位
1 1NO - - - - - - - - - - - -
RS庫存編號 818-277
製造零件編號072896 & NHI11-PKZ0
BrandEaton
TWD458.00
單位
2 NO/NC - Side Mount 2 A dc, 3.5 A ac 220 V dc, 500 V ac DPST Screw - - - - - -
RS庫存編號 608-8775
製造零件編號GV7AC01
TWD1,392.00
單位
- - - - - - - - - - - GV7A - -
RS庫存編號 400-1473
製造零件編號LAD8N20
TWD556.00
單位
- 2NO - Side - - - Screw Clamp - - - LAD8 - -
RS庫存編號 706-0911
製造零件編號3RH2911-1HA20
BrandSiemens
TWD264.00
單位
2 2NO Sirius Innovation Snap-On 6 A ac, 10 A dc 250 V dc, 690 V ac DPST Screw -25°C +60°C -25 → +60 °C 3RH2 - -
RS庫存編號 394-9914
製造零件編號LADN20
TWD462.00
單位
2 2NO TeSys Front Mount 10 A - DP Screw - - - LADN - -
RS庫存編號 394-9879
製造零件編號LADN40
TWD526.00
單位
4 4NO TeSys Front Mount 10 A - 4P Screw - - - LADN - -
RS庫存編號 124-3131
製造零件編號5ST3030
BrandSiemens
TWD1,507.00
單位
- - Sentron - - - - - - - - 5ST3 - -
RS庫存編號 333-546
製造零件編號78819020 & HI11-P1/P3Z(RS333-546)
BrandEaton
TWD452.00
單位
2 NO/NC - Side Mount 10 A - - Screw - +50°C - - - -
RS庫存編號 244-0107
製造零件編號082882 & NHI-E-11-PKZ0
BrandEaton
TWD410.00
單位
2 NO/NC - Front Mount 1 A ac, 2 A dc 24 V dc, 240 V ac DPST Screw - - - - - -
RS庫存編號 373-2211
製造零件編號YM-50
TWD176.00
單位
- - - - - - - - - - - YM 45 mm 50 x 45 x 30mm
RS庫存編號 395-0100
製造零件編號GVAN20
TWD1,125.00
單位
2 2NO - Side Mount - 240 V dc, 690 V ac DP Screw - - - GVAN - -
RS庫存編號 751-5714
製造零件編號3RT1916-2FK21
BrandSiemens
TWD4,809.00
單位
2 NO/NC Sirius Classic DIN Rail Mount - - - Screw -25°C +60°C -25 → +60 °C 3RT1 - -
RS庫存編號 445-8043
製造零件編號1SBN010040R1122 - CA5-22M
BrandABB
TWD1,212.00
單位
4 2NO/2NC - Front Mount 6 A 24 V dc, 230 V ac 4P Screw - - - CA5 - -
RS庫存編號 392-8967
製造零件編號3RH1921-1CA10
BrandSiemens
TWD136.00
單位
1 NO Sirius Classic Snap-On - - SP Screw - - - 3RH1 - -
RS庫存編號 122-1054
製造零件編號BFB-11 EN
BrandWEG
TWD329.00
單位
2 1NO/1NC - Front Mount 10 A 690 V ac DPST Screw - - -25 → +55 °C BFB - -
RS庫存編號 776-2963
製造零件編號A9N26929
TWD3,104.00
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 492-1692
製造零件編號082884 & NHI-E-10-PKZ0
BrandEaton
TWD299.00
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 394-9885
製造零件編號LADN31
TWD632.00
單位
4 3NO/NC TeSys Front Mount 10 A - 4P Screw -5°C +60°C - LADN - -
RS庫存編號 395-0352
製造零件編號GV2AF3
TWD95.00
單位
- - - - - - - - - - - GV2A - -