Auxiliary Contacts

Auxiliary contacts, also known as auxiliary contactors are electromechanical devices used in conjunction with primary switching equipment such as contactors, circuit breakers, switches, and relays. These secondary switching devices are physically connected to the main switching equipment and work at the same time. The add-on accessories are available in a range of contact configurations and mounting styles to suit a wide range of industrial control applications.RS Components offer an extensive range of high-quality auxiliary contact blocks from industry-leading brands including Schneider Electric, Siemens, ABB, Lovato, Eaton, and of course RS Pro.

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. Auxiliary contacts are available in a variety of mounting styles such as a front mount or DIN rail mount and a range of terminal types including screw terminals, screw clamp terminals, and cage clamp terminals making it easy to find the right contact for the application.

What are auxiliary contacts used for?

One common usage of auxiliary contacts is in push-button controllers, where they can be built into the start button. They are a common component in relay logic circuits solid-state electronics, electric motors, motor control schemes, and other industrial control applications.

What are the different types of contact blocks?

There are two types of contact, contacts that are closed in a non-activated state and those that are open. They will be described as N/C (normally closed) and N/O (normally open).NC contacts are used as interlocks. NO contacts are used for switching on other components such as status indication lamps.


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Omschrijving Prijs Number of Contacts Normal State Configuration Range Mounting Style Contact Current Rating Contact Voltage Rating Series Pole and Throw Configuration Terminal Type Minimum Operating Temperature Maximum Operating Temperature Operating Temperature Range CAD Drawing
RS-stocknr. 394-9908
FabrikantnummerLADN22
17,20 €
Each
Aantal stuks
4 2NC + 2NO TeSys Front Mount 10 A 600 V ac LADN 4P Screw -5°C +60°C - -
RS-stocknr. 759-055
FabrikantnummerLA1KN22
14,10 €
Each
Aantal stuks
4 2NC + 2NO TeSys Front Mount 10 A 600 V ac LA1K 4P Screw - - -25 → 50 °C -
RS-stocknr. 395-0122
FabrikantnummerGVAN11
11,49 €
Each
Aantal stuks
2 1NC + 1NO TeSys Side Mount 6 A 240 V dc, 690 V ac GVAN DP Screw - - - -
RS-stocknr. 395-0144
FabrikantnummerGVAE11
11,24 €
Each
Aantal stuks
2 1NC + 1NO TeSys Front Mount 2.5 A 60 V dc, 240 V ac GVAE DP Screw - - - -
RS-stocknr. 791-2824
FabrikantnummerA9A26924
28,93 €
Each
Aantal stuks
1 1CO Acti 9 DIN Rail Mount 2 A dc, 6 A ac 24 → 130 V dc, 240 → 415 V ac iOF SPCO Screw -35°C +70°C -35 → +70 °C -
RS-stocknr. 684-3594
Fabrikantnummer0916605
FabrikantPhoenix Contact
12,05 €
Each
Aantal stuks
- - CLIPLINE - - - UT 6-TMC M 2A - Screw - - - -
RS-stocknr. 818-283
Fabrikantnummer072894 & NHI21-PKZ0
FabrikantEaton
15,35 €
Each
Aantal stuks
3 2NC + 2NO - Side Mount 2 A dc, 3.5 A ac 220 V dc, 500 V ac - 3PST Screw - - - -
RS-stocknr. 326-734
Fabrikantnummer010288 & 22DILE
FabrikantEaton
15,00 €
Each
Aantal stuks
4 2NC + 2NO - Front Mount 2.5 A dc, 4 A ac 220 V dc, 500 V ac DILE 4PST Screw - - - -
RS-stocknr. 394-9885
FabrikantnummerLADN31
17,20 €
Each
Aantal stuks
4 1NC + 3NO TeSys Front Mount 10 A - LADN 4P Screw -5°C +60°C - -
RS-stocknr. 395-0138
FabrikantnummerGVAE20
11,24 €
Each
Aantal stuks
2 2NO - Front Mount - 60 V dc, 240 V ac GVAE DP Screw - - - -
RS-stocknr. 394-9879
FabrikantnummerLADN40
17,20 €
Each
Aantal stuks
4 4NO TeSys Front Mount 10 A - LADN 4P Screw - - - -
RS-stocknr. 493-0680
Fabrikantnummer276426 & DILA-XHI22
FabrikantEaton
12,90 €
Each
Aantal stuks
4 2NC + 2NO - Front Mount 4 A ac, 10 A dc 220 V dc, 500 V ac DILA 4PST Screw - - - -
RS-stocknr. 746-0796
Fabrikantnummer3RH2911-1GA22
FabrikantSiemens
14,49 €
Each
Aantal stuks
4 2NC + 2NO Sirius Innovation Snap-On 10 A 600 V dc, 690 V ac 3RH2 4P Screw - - -25 → +60 °C -
RS-stocknr. 392-8967
Fabrikantnummer3RH1921-1CA10
FabrikantSiemens
4,69 €
Each
Aantal stuks
1 1NO Sirius Classic Snap-On - - 3RH1 SP Screw - - - -
RS-stocknr. 244-0107
Fabrikantnummer082882 & NHI-E-11-PKZ0
FabrikantEaton
10,20 €
Each
Aantal stuks
2 1NC + 1NO - Front Mount 1 A ac, 2 A dc 24 V dc, 240 V ac - DPST Screw - - - -
RS-stocknr. 395-0172
FabrikantnummerGVAD0110
16,62 €
Each
Aantal stuks
2 1NC + 1NO - Side Mount - 240 V dc, 690 V ac GVAD DP Screw - - - -
RS-stocknr. 272-870
FabrikantnummerGVAED011
14,00 €
Each
Aantal stuks
2 1NC + 1NO - Front Mount - - GVAE DP - - - - -
RS-stocknr. 488-6448
Fabrikantnummer2CDS200922R0001 S2C-S/H6R
FabrikantABB
29,46 €
Each
Aantal stuks
2 1NC + 1NO - Side Mount 1.5 A dc, 6 A ac 110 V dc, 240 V ac S2C DP Screw - - - -
RS-stocknr. 493-0624
Fabrikantnummer277376 & DILM32-XHI11
FabrikantEaton
7,70 €
Each
Aantal stuks
2 1NC + 1NO - Front Mount 4 A ac, 10 A dc 220 V dc, 500 V ac DILM DPST Screw -25°C +60°C -25 → +60 °C -
RS-stocknr. 818-277
Fabrikantnummer072896 & NHI11-PKZ0
FabrikantEaton
9,64 €
Each
Aantal stuks
2 1NC + 1NO - Side Mount 2 A dc, 3.5 A ac 220 V dc, 500 V ac - DPST Screw - - - -