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 Prix 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 External Dimensions
N° de stock RS 246-5061
Référence fabricant3RV1901-1A
MarqueSiemens
14,30 €
Each
Unité
2 NO/NC Sirius Classic Side Mount 2 A 24 V ac DP Screw - +60°C Maximum of +60 °C - 3RV1 -
N° de stock RS 735-2715
Référence fabricant3SB1400-0A
MarqueSiemens
15,66 €
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Unité
2 NO/NC - Front Mount 10 A 220 V dc, 400 V ac DPST Screw -25°C +70°C -25 → +70 °C - - -
N° de stock RS 746-0796
Référence fabricant3RH2911-1GA22
MarqueSiemens
14,49 €
Each
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4 2NO/2NC Sirius Innovation Snap Front 10 A 600 V dc, 690 V ac 4P Screw - - -25 +60 °C - 3RH2 -
N° de stock RS 392-8967
Référence fabricant3RH1921-1CA10
MarqueSiemens
4,69 €
Each
Unité
1 NO Sirius Classic Snap-On - - SP Screw - - - - 3RH1 -
N° de stock RS 706-0885
Référence fabricant3RH2911-1FA40
MarqueSiemens
14,49 €
Each
Unité
4 4NO Sirius Innovation Snap-On 6 A dc, 10 A ac 250 V dc, 690 V ac 4PST Screw -25°C +60°C -25 +60 °C - 3RH2 -
N° de stock RS 392-8973
Référence fabricant3RH1921-1CA01
MarqueSiemens
4,69 €
Each
Unité
1 NC Sirius Classic Snap-On - - SP Screw - - - - 3RH1 -
N° de stock RS 706-1888
Référence fabricant3RV2901-1A
MarqueSiemens
10,17 €
Each
Unité
2 NO/NC Sirius Innovation Plug In 2 A dc, 10 A ac 250 V dc, 690 V ac DP Screw -20°C +60°C -20 +60 °C - 3RV2 -
N° de stock RS 243-7454
Référence fabricant3RH1911-1AA10
MarqueSiemens
4,60 €
Each
Unité
1 NO Sirius Classic Snap-On 6 A - SP Screw - - - - 3RH1 -
N° de stock RS 246-4490
Référence fabricant3RH1921-1FA40
MarqueSiemens
10,96 €
Each
Unité
4 4NO Sirius Classic Front Mount 6 A - 4P Screw - - - - 3RH1 -
N° de stock RS 243-7533
Référence fabricant3RH1911-1FA22
MarqueSiemens
18,30 €
Each
Unité
4 2NO/2NC Sirius Classic Snap-On 6 A - 4P Screw - - - - 3RH1 -
N° de stock RS 246-4513
Référence fabricant3RH1921-1FA04
MarqueSiemens
10,96 €
Each
Unité
4 4NC Sirius Classic Front Mount 6 A - 4P Screw - - - - 3RH1 -
N° de stock RS 122-9427
Référence fabricant3RH2921-2DA11
MarqueSiemens
12,96 €
Each
Unité
2 NO/NC Sirius Innovation Snap-On 10 A 690 V SPST Cage Clamp -25°C +60°C -25 +60 °C - 3RH29 -
N° de stock RS 746-0705
Référence fabricant3RH1921-1HA22
MarqueSiemens
19,14 €
Each
Unité
4 2NO/2NC Sirius Classic Snap Front - - 4P Screw - - - - 3RH1 -
N° de stock RS 874-4537
Référence fabricant3VA9988-0AA12
MarqueSiemens
22,05 €
Each
Unité
3 4NO/2NC Sentron Side Mount 6 A - - Screw - - - - 3VA -
N° de stock RS 521-4579
Référence fabricant5ST3010
MarqueSiemens
18,36 €
Each
Unité
2 NO/NC Sentron DIN Rail Mount 6 A 230 V ac DP Screw -5°C +40°C -5 → +40 °C - 5ST3 -
N° de stock RS 706-1897
Référence fabricant3RV2901-1E
MarqueSiemens
10,17 €
Each
Unité
2 NO/NC Sirius Innovation Plug In 1 A dc, 2.5 A ac 60 V dc, 230 V ac DP Screw -20°C +60°C -20 → +60 °C - 3RV2 -
N° de stock RS 751-5751
Référence fabricant3RT1926-2FJ31
MarqueSiemens
92,68 €
Each
Unité
2 NO/NC Sirius Classic - 20 mA - - Screw -25°C +60°C -25 +60 °C - 3RT1 -
N° de stock RS 706-1891
Référence fabricant3RV2901-1F
MarqueSiemens
10,17 €
Each
Unité
2 2NO Sirius Innovation Plug In 1 A dc, 2.5 A ac 60 V dc, 230 V ac DP Screw -20°C +60°C -20 +60 °C - - -
N° de stock RS 314-292
Référence fabricant3TX4001-2A
MarqueSiemens
5,89 €
Each
Unité
1 NC - Plug In 6 A - SP - - - - - 3TX4 -
N° de stock RS 246-4507
Référence fabricant3RH1921-1FA22
MarqueSiemens
10,96 €
Each
Unité
4 2NO/2NC - Front Mount 6 A - 4P Screw - - - - 3RH1 -