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. 521-4579
Fabrikantnummer5ST3010
FabrikantSiemens
€ 19,90
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2 NO/NC Sentron DIN Rail Mount 6 A 230 V ac DP Screw -5°C +40°C -5 → +40 °C - 5ST3 -
RS-stocknr. 121-6872
FabrikantRS PRO
€ 13,67
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- - - DIN Rail Mount - - - Screw -25°C +60°C -25 → +60 °C - AR -
RS-stocknr. 257-3752
FabrikantnummerVZ7
€ 13,65
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Aantal stuks
2 NO/NC - - - - DP - - - - - VZ7 -
RS-stocknr. 706-0970
Fabrikantnummer3RH2911-2HA10
FabrikantSiemens
€ 7,39
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1 NO Sirius Innovation Snap-On 6 A dc, 10 A ac 250 V dc, 690 V ac SPST Cage Clamp -25°C +60°C -25 → +60 °C - 3RH2 -
RS-stocknr. 122-9424
Fabrikantnummer3RH2911-2FA22
FabrikantSiemens
€ 15,60
Each
Aantal stuks
4 2NO/2NC Sirius Innovation Snap-On 10 A 690 V DP Cage Clamp -25°C +60°C -25 → +60 °C - 3RH2 -
RS-stocknr. 454-8152
FabrikantnummerNZM1-XHIV
FabrikantEaton
€ 38,48
Each
Aantal stuks
2 2NO - - 3 A dc, 4 A ac 220 V dc, 500 V ac DP Screw - - - - NZM1 -
RS-stocknr. 502-244
Fabrikantnummer100-KFA20E
FabrikantAllen Bradley
€ 7,93
Each
Aantal stuks
2 2NO - Snap-On - - DPST Screw - - - - 100K -
RS-stocknr. 257-3695
FabrikantnummerVZ0
€ 11,90
Each
Aantal stuks
1 - - Side Mount 20 A 690 V ac SP Screw -20°C +50°C -20 → +50 °C - VZ0 -
RS-stocknr. 243-7511
Fabrikantnummer3RH1911-1FA20
FabrikantSiemens
€ 8,20
Each
Aantal stuks
2 2NO Sirius Classic Snap-On 6 A - DP Screw - - - - 3RH1 -
RS-stocknr. 122-0781
FabrikantnummerACBS-11
FabrikantWEG
€ 9,34
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Aantal stuks
2 NO/NC - Side Mount 10 A 690 V ac DPST Screw - - -20 → +70 °C - ACBS -
RS-stocknr. 219-1439
FabrikantnummerHI11-P1/P3E-SOND
FabrikantEaton
€ 10,69
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Aantal stuks
- - - - 10 A - - - - - - - - -
RS-stocknr. 746-0711
Fabrikantnummer3RH1921-1LA11
FabrikantSiemens
€ 14,50
Each
Aantal stuks
2 NO/NC Sirius Classic Snap Front - - DP Screw - - - - 3RH1 -
RS-stocknr. 124-3128
Fabrikantnummer5ST3020
FabrikantSiemens
€ 30,80
Each
Aantal stuks
- - Sentron - - - - - - - - - 5ST3 -
RS-stocknr. 238-1036
Fabrikantnummer100-FA20
FabrikantAllen Bradley
€ 8,90
Each
Aantal stuks
2 2NO - Front Mount 10 A - DPST Screw - - - - 100F -
RS-stocknr. 608-8775
FabrikantnummerGV7AC01
€ 39,65
Each
Aantal stuks
- - - - - - - - - - - - GV7A -
RS-stocknr. 482-4434
Fabrikantnummer1SCA022353R4970
FabrikantABB
€ 8,20
Each
Aantal stuks
1 NO - - - - - - - - - - - -
RS-stocknr. 122-0780
FabrikantnummerACBF-11
FabrikantWEG
€ 9,23
Each
Aantal stuks
2 NO/NC - Front Mount 2.5 A 250 V ac DPST Screw - - -20 → +70 °C - ACBF -
RS-stocknr. 351-5583
Fabrikantnummer140M-C-ASA11
FabrikantAllen Bradley
€ 13,00
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Aantal stuks
2 NO/NC - Side Mount - - DPST Screw - - - - 140 -
RS-stocknr. 392-8995
Fabrikantnummer3RH1921-2CA01
FabrikantSiemens
€ 5,06
Each
Aantal stuks
1 NC Sirius Classic Snap-On - - SP Cage Clamp - - - - 3RH1 -
RS-stocknr. 460-1506
FabrikantnummerGHS2701916R0003 - S2-H02
FabrikantABB
€ 19,60
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Aantal stuks
2 2NC - Side Mount 4 A dc, 6 A ac 24 V dc, 230 V ac DP - - - - - HSMS -
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