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 Number of Timing Ranges External Dimensions
RS Stock No. 394-9908
Mfr. Part No.LADN22
PHP996.97
Each
units
4 2NO/2NC TeSys Front Mount 10 A 600 V ac 4P Screw -5°C +60°C - LADN - -
RS Stock No. 395-0144
Mfr. Part No.GVAE11
PHP472.39
Each
units
2 NO/NC TeSys Front Mount 2.5 A 60 V dc, 240 V ac DP Screw - - - GVAE - -
RS Stock No. 395-0122
Mfr. Part No.GVAN11
PHP568.25
Each
units
2 NO/NC TeSys Side Mount 6 A 240 V dc, 690 V ac DP Screw - - - GVAN - -
RS Stock No. 791-2824
Mfr. Part No.A9A26924
PHP1,642.74
Each
units
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 Stock No. 608-8781
Mfr. Part No.GV7AE11
PHP1,594.40
Each
units
1 NO/NC - - - 250 V dc, 690 V ac SPDT Screw - - - GV7A - -
RS Stock No. 394-9936
Mfr. Part No.LADN11
PHP618.58
Each
units
2 NO/NC TeSys Front Mount 10 A - DP Screw - - - LADN - -
RS Stock No. 394-9885
Mfr. Part No.LADN31
PHP1,007.65
Each
units
4 3NO/NC TeSys Front Mount 10 A - 4P Screw -5°C +60°C - LADN - -
RS Stock No. 395-0352
Mfr. Part No.GV2AF3
PHP262.52
Each
units
- - - - - - - - - - - GV2A - -
RS Stock No. 400-1445
Mfr. Part No.LADS2
PHP5,283.88
Each
units
2 NO/NC TeSys Front Mount 10 A 690 V - Screw -5°C +60°C -5 → +60 °C D - -
RS Stock No. 493-9110
PHP746.84
Each
units
2 NO/NC TeSys U Series - 5 A 24 → 250 V ac/dc - - - - - - - -
RS Stock No. 791-2828
Mfr. Part No.A9A26929
PHP1,970.50
Each
units
4 NO/NC + NO/NC Acti 9 DIN Rail Mount 2 A dc, 6 A ac 24 → 130 V dc, 240 → 415 V ac 4P Screw -35°C +70°C -35 → +70 °C iOF - -
RS Stock No. 395-0172
Mfr. Part No.GVAD0110
PHP1,102.93
Each
units
2 NO/NC - Side Mount - 240 V dc, 690 V ac DP Screw - - - GVAD - -
RS Stock No. 395-0627
Mfr. Part No.GVAE1
PHP353.31
Each
units
2 NO/NC - Front Mount - 60 V dc, 240 V ac DP Screw - - - GVAE - -
RS Stock No. 759-027
Mfr. Part No.LA1KN11
PHP563.31
Each
units
2 NO/NC TeSys Clip On 10 A 600 V ac DP Screw - - - LA1K - -
RS Stock No. 394-9914
Mfr. Part No.LADN20
PHP721.06
Each
units
2 2NO TeSys Front Mount 10 A - DP Screw - - - LADN - -
RS Stock No. 394-9920
Mfr. Part No.LADN13
PHP1,522.09
Each
units
4 NO/3NC - Front Mount - - 4P Screw - - - LADN - -
RS Stock No. 395-0150
Mfr. Part No.GVAD1010
PHP1,612.54
Each
units
2 2NO - Side Mount - 240 V dc, 690 V ac DP Screw - - - GVAD - -
RS Stock No. 394-9879
Mfr. Part No.LADN40
PHP997.83
Each
units
4 4NO TeSys Front Mount 10 A - 4P Screw - - - LADN - -
RS Stock No. 400-1467
Mfr. Part No.LAD8N11
PHP836.70
Each
units
- - - - - - - - - - - LAD8 - -
RS Stock No. 776-2963
Mfr. Part No.A9N26929
PHP4,973.42
Each
units
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 - -