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. 351-5583
Fabrikantnummer140M-C-ASA11
FabrikantAllen Bradley
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11,22 €
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2 NO/NC - Side Mount 2 A dc, 3.5 A ac 220 V dc, 500 V ac DPST Screw - - - - - -
RS-stocknr. 488-6448
FabrikantnummerS2C-S/H6R
FabrikantABB
22,70 €
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Aantal stuks
2 NO/NC - Side Mount 1.5 A dc, 6 A ac 110 V dc, 240 V ac DP Screw - - - - S2C -
RS-stocknr. 791-2828
FabrikantnummerA9A26929
39,30 €
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Aantal stuks
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-stocknr. 706-1888
Fabrikantnummer3RV2901-1A
FabrikantSiemens
10,17 €
Each
Aantal stuks
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 -
RS-stocknr. 382-131
FabrikantnummerLADN403
18,15 €
Each
Aantal stuks
4 4NO - Snap-On 10 A 690 V ac 4P Spring Clamp -40°C +70°C -40 +70 °C - LADN -
RS-stocknr. 513-0229
FabrikantnummerDILM150-XHI22
FabrikantEaton
13,76 €
Each
Aantal stuks
4 2NO/2NC - Front Mount 4 A ac, 10 A dc 220 V dc, 500 V ac 4PST Screw - - - - DILM -
RS-stocknr. 706-0885
Fabrikantnummer3RH2911-1FA40
FabrikantSiemens
14,49 €
Each
Aantal stuks
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 -
RS-stocknr. 257-3752
FabrikantnummerVZ7
13,65 €
Each
Aantal stuks
2 NO/NC - - - - DP - - - - - VZ7 -
RS-stocknr. 392-8973
Fabrikantnummer3RH1921-1CA01
FabrikantSiemens
4,69 €
Each
Aantal stuks
1 NC Sirius Classic Snap-On - - SP Screw - - - - 3RH1 -
RS-stocknr. 395-0166
FabrikantnummerGVAD1001
17,15 €
Each
Aantal stuks
2 NO/NC - Side Mount - 240 V dc, 690 V ac DP Screw - - - - GVAD -
RS-stocknr. 609-4398
FabrikantnummerVZN11
10,35 €
Each
Aantal stuks
- - - Side Mount 16 A - - - - - - - VZN1 -
RS-stocknr. 759-033
FabrikantnummerLA1KN02
9,34 €
Each
Aantal stuks
2 2NC - Clip On 10 A 600 V ac DP Screw - - - - LA1K -
RS-stocknr. 711-6379
FabrikantnummerCA4-22U
FabrikantABB
16,80 €
Each
Aantal stuks
4 2NO/2NC - Front Mount 6 A 600 V dc, 690 V ac 4P Screw - - - - CA4 -
RS-stocknr. 400-1467
FabrikantnummerLAD8N11
11,80 €
Each
Aantal stuks
- - - - - - - - - - - - LAD8 -
RS-stocknr. 219-1439
FabrikantnummerHI11-P1/P3E-SOND
FabrikantEaton
10,69 €
Each
Aantal stuks
2 NO/NC - Side Mount 10 A - - - - +50°C - - - -
RS-stocknr. 333-546
FabrikantnummerHI11-P1/P3-Z/SOND
FabrikantEaton
12,89 €
Each
Aantal stuks
2 NO/NC - Side Mount 10 A - - Screw - +50°C - - - -
RS-stocknr. 488-7384
Fabrikantnummer2CDS200912R0001
FabrikantABB
15,80 €
Each
Aantal stuks
2 NO/NC - Side Mount - - DP Screw - - - - - -
RS-stocknr. 215-0747
Fabrikantnummer29450
FabrikantMerlin Gerin
42,53 €
Each
Aantal stuks
1 NO/NC - - 6 A 250 V dc, 690 V ac SPDT Screw - - - - Multi 9 -
RS-stocknr. 394-9936
FabrikantnummerLADN11
10,20 €
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2 NO/NC TeSys Front Mount 10 A - DP Screw - - - - LADN -
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