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 CAD Drawing Series Number of Timing Ranges
RS stock no. 394-9885
Mfr. Part No.LADN31
R 457.90
Each
units
4 3NO/NC TeSys Front Mount 10 A - 4P Screw -5°C +60°C - - LADN -
RS stock no. 791-2824
Mfr. Part No.A9A26924
R 589.37
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. 395-0144
Mfr. Part No.GVAE11
R 248.33
Each
units
2 NO/NC TeSys Front Mount 2.5 A 60 V dc, 240 V ac DP Screw - - - - GVAE -
RS stock no. 400-1445
Mfr. Part No.LADS2
R 1,738.34
Each
units
2 NO/NC TeSys Front Mount 10 A 690 V - Screw -5°C +60°C -5 → +60 °C - D -
RS stock no. 394-9908
Mfr. Part No.LADN22
R 457.90
Each
units
4 2NO/2NC TeSys Front Mount 10 A 600 V ac 4P Screw -5°C +60°C - - LADN -
RS stock no. 394-9879
Mfr. Part No.LADN40
R 457.90
Each
units
4 4NO TeSys Front Mount 10 A - 4P Screw - - - - LADN -
RS stock no. 394-9936
Mfr. Part No.LADN11
R 267.71
Each
units
2 NO/NC TeSys Front Mount 10 A - DP Screw - - - - LADN -
RS stock no. 395-0122
Mfr. Part No.GVAN11
R 287.09
Each
units
2 NO/NC TeSys Side Mount 6 A 240 V dc, 690 V ac DP Screw - - - - GVAN -
RS stock no. 791-2837
Mfr. Part No.A9A26927
R 600.47
Each
units
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 -
RS stock no. 791-2828
Mfr. Part No.A9A26929
R 771.42
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. 400-1401
Mfr. Part No.GVAM11
R 344.03
Each
units
1 NO/NC - Side Mount - - SPDT Screw - - - - GVAM -
RS stock no. 395-0100
Mfr. Part No.GVAN20
R 287.09
Each
units
2 2NO - Side Mount - 240 V dc, 690 V ac DP Screw - - - - GVAN -
RS stock no. 776-2957
Mfr. Part No.A9N26924
R 476.66
Each
units
1 CO - DIN Rail Mount 6 (ac) A, 6 (dc) A 130 V dc, 415 V ac SPDT Clamp -35°C +70°C -35 → +70 °C 3D CAD Model - -
RS stock no. 395-0352
Mfr. Part No.GV2AF3
R 84.54
Each
units
- - - - - - - - - - - - GV2A -
RS stock no. 776-2963
Mfr. Part No.A9N26929
R 864.80
Each
units
2 CO - DIN Rail Mount 6 (ac) A, 6 (dc) A 130 V dc, 415 V ac DPDT Clamp -37°C +70°C -37 → +70 °C 3D CAD Model - -
RS stock no. 776-2944
Mfr. Part No.A9A26500
R 860.87
Each
units
- - - - - - - - - - - 3D CAD Model - -
RS stock no. 400-1467
Mfr. Part No.LAD8N11
R 239.56
Each
units
- - - - - - - - - - - - LAD8 -
RS stock no. 394-9970
Mfr. Part No.LADN02
R 267.71
Each
units
2 2NC - Front Mount - - DP Screw - - - - LADN -
RS stock no. 395-0188
Mfr. Part No.GVAD0101
R 432.46
Each
units
2 2NC - Side Mount - 240 V dc, 690 V ac DP Screw - - - - GVAD -
RS stock no. 257-3746
Mfr. Part No.VZ20
R 274.98
Each
units
2 2NO - - 12 A - DP - - - - - VZ20 -