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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Omschrijving Prijs 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
RS-stocknr. 326-712
Fabrikantnummer11DILE
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Fabrikantnummer3RH1921-1FA22
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4 2NO/2NC - Front Mount 6 A - 4P Screw - - - - 3RH1 -
RS-stocknr. 706-1891
Fabrikantnummer3RV2901-1F
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10,17 €
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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 - - -
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FabrikantnummerA9N26923
40,09 €
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- - - - - - - - - - - 3D CAD Model - -
RS-stocknr. 874-4537
Fabrikantnummer3VA9988-0AA12
FabrikantSiemens
22,05 €
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Aantal stuks
3 4NO/2NC Sentron Side Mount 6 A - - Screw - - - - 3VA -
RS-stocknr. 706-1897
Fabrikantnummer3RV2901-1E
FabrikantSiemens
10,17 €
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Aantal stuks
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 -
RS-stocknr. 187-560
FabrikantnummerVZN05
8,61 €
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Aantal stuks
1 NO - - - - SP - - - - - VZN0 -
RS-stocknr. 319-691
FabrikantnummerK0 H010/A11-VE
FabrikantKraus & Naimer
9,71 €
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Aantal stuks
2 NO/NC - - 25 A, 32 A - DP - - - - - - -
RS-stocknr. 326-633
Fabrikantnummer22DILEM
FabrikantEaton
14,74 €
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4 2NO/2NC - Front Mount 2.5 A dc, 4 A ac 220 V dc, 500 V ac 4PST Screw - - - - - -
RS-stocknr. 521-4579
Fabrikantnummer5ST3010
FabrikantSiemens
18,36 €
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Aantal stuks
2 NO/NC Sentron DIN Rail Mount 6 A 230 V ac DP Screw -5°C +40°C -5 → +40 °C - 5ST3 -
RS-stocknr. 493-0696
FabrikantnummerDILA-XHI40
FabrikantEaton
13,90 €
Each
Aantal stuks
4 4NO - Front Mount 4 A ac, 10 A dc 220 V dc, 500 V ac 4PST Screw - - - - DILA -
RS-stocknr. 791-2852
FabrikantnummerA9C15419
140,70 €
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Aantal stuks
- - Acti 9 DIN Rail Mount - 12 → 48 V ac - Screw -5°C +50°C -5 → +50 °C - iATET -
RS-stocknr. 493-0668
FabrikantnummerDILA-XHI11
FabrikantEaton
8,12 €
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Aantal stuks
2 NO/NC - Front Mount 4 A ac, 10 A dc 220 V dc, 500 V ac DPST Screw - - - - DILA -
RS-stocknr. 238-1064
Fabrikantnummer100-FA11
FabrikantAllen Bradley
12,40 €
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2 NO/NC - Front Mount 10 A - DPST Screw - - - - 100F -
RS-stocknr. 493-9110
12,84 €
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Aantal stuks
2 NO/NC TeSys U Series - 5 A 24 → 250 V ac/dc - - - - - - - -
RS-stocknr. 435-421
Fabrikantnummer2CCS800900R0021
FabrikantABB
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2 2NO/2NC - DIN Rail Mount 4 A dc, 6 A ac 250 V dc, 400 V ac DPDT Screw -25°C +60°C -25 +60 °C - S800 -
RS-stocknr. 122-0780
FabrikantnummerACBF-11
FabrikantWEG
9,23 €
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Aantal stuks
2 NO/NC - Front Mount 2.5 A 250 V ac DPST Screw - - -20 → +70 °C - ACBF -
RS-stocknr. 363-5766
FabrikantnummerLA1KN223
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4 2NO/2NC - Clip On 10 A 600 V ac 4P Cage Clamp - - - - LA1K -
RS-stocknr. 121-6867
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1 NO - DIN Rail Mount - - - Screw -25°C +60°C -25 +60 °C - HRS -
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