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 Width
RS-stocknr. 178-8011
Fabrikantnummer139580 & DILA-XHIR22
FabrikantEaton
€ 38,46
Each
Aantal stuks
4 2NO/2NC - Front Mount 4 A ac, 10 A dc 220 V dc, 500 V ac 4P Screw -25°C +60°C -25 → +60 °C - DILA -
RS-stocknr. 178-8041
Fabrikantnummer072895 & NHI12-PKZ0
FabrikantEaton
€ 18,19
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Aantal stuks
3 1NO/2NC - Side Mount 2 A dc, 3.5 A ac 250 V dc, 500 V ac 3P Screw -25°C +55°C -25 → +55 °C - NHI12 -
Nieuw
RS-stocknr. 211-2623
FabrikantnummerLADN22P
€ 14,75
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- 2 NO + 2 NC TeSys DIN - 690 V - - - - - - LADN -
RS-stocknr. 136-3681
Fabrikantnummer3RH2911-1LA20
FabrikantSiemens
€ 9,45
Each
Aantal stuks
2 1NO/1NC Sirius Innovation Snap-On 10 A 600 V dc, 690 V ac DPST Screw -25°C +60°C -25 → +60 °C - 3RH29 -
Nieuw
RS-stocknr. 213-2392
Fabrikantnummer5ST3021-2
FabrikantSiemens
€ 35,80
Each
Aantal stuks
2 2NO SENTRON DIN - - - - - - - - 5ST3 -
RS-stocknr. 706-0992
Fabrikantnummer3RH2911-2HA22
FabrikantSiemens
€ 14,49
Each
Aantal stuks
4 2NO/2NC Sirius Innovation Snap-On 6 A ac, 10 A dc 250 V dc, 690 V ac 4PST Cage Clamp -25°C +60°C -25 → +60 °C - 3RH2 -
RS-stocknr. 711-6363
Fabrikantnummer1SBN010140R1131 CA4-31M
FabrikantABB
€ 20,24
Each
Aantal stuks
4 3NO/1NC - Front Mount 6 A 600 V dc, 690 V ac 4P Screw - - - - CA4 -
RS-stocknr. 513-0207
Fabrikantnummer277948 & DILM150-XHI40
FabrikantEaton
€ 14,19
Each
Aantal stuks
4 4NO - Front Mount 4 A ac, 10 A dc 220 V dc, 500 V ac 4PST Screw - - - - DILM -
RS-stocknr. 502-171
Fabrikantnummer100-KFC11
FabrikantAllen Bradley
€ 9,38
Each
Aantal stuks
2 1NO/1NC - Snap-On 12 A - DPST Screw - - - - 100K -
RS-stocknr. 759-011
FabrikantnummerLA1KN20
€ 9,23
Each
Aantal stuks
2 2NO - Clip On 10 A 600 V ac DP Screw - - - - LA1K -
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RS-stocknr. 213-1025
Fabrikantnummer3TY2781-2D
FabrikantSiemens
€ 64,90
Each
Aantal stuks
4 2NO+2NC SIRIUS Snap-On 10 A 690 V - - - - - - - -
RS-stocknr. 178-8008
Fabrikantnummer276420 & DILA-XHI02
FabrikantEaton
€ 7,58
Each
Aantal stuks
2 2NC - Surface Mount 4 A ac, 10 A dc 220 V dc, 500 V ac DP Screw -25°C +60°C -25 → +60 °C - DILA -
Nieuw
RS-stocknr. 211-2621
FabrikantnummerLADN206
€ 9,46
Each
Aantal stuks
- 2 NO TeSys DIN - 690 V - - - - - - LADN -
RS-stocknr. 502-452
Fabrikantnummer100-KFC22
FabrikantAllen Bradley
€ 18,40
Each
Aantal stuks
4 2NO/2NC - Snap-On 12 A - 4PST Screw - - - - 100K -
RS-stocknr. 706-0927
Fabrikantnummer3RH2911-1HA30
FabrikantSiemens
€ 11,70
Each
Aantal stuks
3 3NO Sirius Innovation Snap-On 6 A dc, 10 A ac 250 V dc, 690 V ac 3PST Screw -25°C +60°C -25 → +60 °C - - -
RS-stocknr. 351-5612
Fabrikantnummer140M-C-AFAR10A10
FabrikantAllen Bradley
€ 17,40
Each
Aantal stuks
2 1NO/1NC - Front Mount - - DPST Screw - - - - 140 -
RS-stocknr. 122-0948
FabrikantnummerBFCA-11
FabrikantWEG
€ 7,54
Each
Aantal stuks
2 1NO/1NC - Front Mount 10 A 690 V ac DPST Screw - - -25 → +55 °C - BFCA -
RS-stocknr. 382-191
FabrikantnummerLA1KN317
€ 14,39
Each
Aantal stuks
4 3NO/1NC - Clip On - - 4P Screw - - - - LA1K -
RS-stocknr. 513-0190
Fabrikantnummer277947 & DILM150-XHI02
FabrikantEaton
€ 7,75
Each
Aantal stuks
2 2NC - Front Mount 4 A ac, 10 A dc 220 V dc, 500 V ac DPST Screw - - - - DILM -
RS-stocknr. 243-7454
Fabrikantnummer3RH1911-1AA10
FabrikantSiemens
€ 4,60
Each
Aantal stuks
1 1NO Sirius Classic Snap-On 6 A - SP Screw - - - - 3RH1 -