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 Number of Timing Ranges
RS-stocknr. 392-9061
Fabrikantnummer3RV1901-2A
FabrikantSiemens
€ 11,40
Each
Aantal stuks
2 NO/NC Sirius Classic Side Mount - - DP Cage Clamp - - - - 3RV1 -
RS-stocknr. 751-5751
Fabrikantnummer3RT1926-2FJ31
FabrikantSiemens
€ 92,00
Each
Aantal stuks
2 NO/NC Sirius Classic - 20 mA - - Screw -25°C +60°C -25 → +60 °C - 3RT1 -
RS-stocknr. 122-0949
FabrikantnummerBFCA-13
FabrikantWEG
€ 12,24
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Aantal stuks
4 NO/3NC - Front Mount 10 A 690 V ac 4PST Screw - - -25 → +55 °C - BFCA -
RS-stocknr. 445-8273
FabrikantnummerCAF6-20M
FabrikantABB
€ 8,00
Each
Aantal stuks
2 2NO - Front Mount - 240 V dc, 500 V ac DP Screw - - - - CAF6 -
RS-stocknr. 121-6866
FabrikantRS PRO
€ 4,96
Each
Aantal stuks
1 NC - DIN Rail Mount - - - Screw -25°C +60°C -25 → +60 °C - HSV -
RS-stocknr. 326-712
Fabrikantnummer11DILE
FabrikantEaton
€ 8,86
Each
Aantal stuks
2 NO/NC - Front Mount 2.5 A dc, 4 A ac 220 V dc, 500 V ac DPST Screw - - - - - -
RS-stocknr. 189-3881
Fabrikantnummer40DILE
FabrikantEaton
€ 14,85
Each
Aantal stuks
4 4NO - Front Mount 2.5 A dc, 4 A ac 220 V dc, 500 V ac 4PST Screw - - - - - -
RS-stocknr. 209-5921
FabrikantnummerM5735317
FabrikantMETCASE
€ 147,28
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Aantal stuks
- - - - - - - - - - - - Mettec -
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Are you looking to add an additional auxiliary contact to your control circuit, to provide further safety? Schneider Electric offers the latest in Auxiliary Contact components and technology.Specifically, the LADN TeSys series of Auxiliary Contactor brings reliability to your circuit ...