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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Beskrivning Pris 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 Accessory Type
RS-artikelnummer 121-6868
VarumärkeRS PRO
88,30 kr
Each
Enheter
1 1NC - DIN Rail Mount - - HRS - Screw -25°C +60°C -25 → +60 °C -
RS-artikelnummer 331-3696
VarumärkeRS PRO
81,69 kr
Each
Enheter
2 1NC + 1NO - DIN Rail Mount - 240 V ac - DP - - - - -
RS-artikelnummer 466-295
VarumärkeRS PRO
56,29 kr
Each
Enheter
1 1NC + 1NO - Panel Mount 63 A - - SPDT - - - - -
RS-artikelnummer 121-6870
VarumärkeRS PRO
209,33 kr
Each
Enheter
- - - DIN Rail Mount - - UR - Screw -25°C +60°C -25 → +60 °C -
RS-artikelnummer 121-6871
VarumärkeRS PRO
209,33 kr
Each
Enheter
- - - DIN Rail Mount - - AR - Screw -25°C +60°C -25 → +60 °C -
RS-artikelnummer 121-6875
VarumärkeRS PRO
58,12 kr
Each
Enheter
- - - DIN Rail Mount - - MSK - Screw -25°C +60°C -25 → +60 °C -
RS-artikelnummer 121-6866
VarumärkeRS PRO
75,93 kr
Each
Enheter
1 1NC - DIN Rail Mount - - HSV - Screw -25°C +60°C -25 → +60 °C -
RS-artikelnummer 121-6867
VarumärkeRS PRO
88,30 kr
Each
Enheter
1 1NO - DIN Rail Mount - - HRS - Screw -25°C +60°C -25 → +60 °C -
RS-artikelnummer 121-6872
VarumärkeRS PRO
209,33 kr
Each
Enheter
- - - DIN Rail Mount - - AR - Screw -25°C +60°C -25 → +60 °C -
RS-artikelnummer 121-6865
VarumärkeRS PRO
63,88 kr
Each
Enheter
1 1NO - DIN Rail Mount - - HSV - Screw -25°C +60°C -25 → +60 °C -
RS-artikelnummer 121-6869
VarumärkeRS PRO
209,33 kr
Each
Enheter
- - - DIN Rail Mount - - UR - Screw -25°C +60°C -25 → +60 °C -
RS-artikelnummer 121-6874
VarumärkeRS PRO
50,97 kr
Each
Enheter
- - - DIN Rail Mount - - MSK - Screw -25°C +60°C -25 → +60 °C -
RS-artikelnummer 395-0144
Tillv. art.nrGVAE11
VarumärkeSchneider Electric
114,79 kr
Each
Enheter
2 1NC + 1NO TeSys Front Mount 2.5 A 60 V dc, 240 V ac GVAE DP Screw - - - -
RS-artikelnummer 238-1115
Tillv. art.nr100-SB10
VarumärkeAllen Bradley
95,12 kr
Each
Enheter
1 1NO - Side Mount 10 A - 100S SPST Screw - - - -
RS-artikelnummer 238-1086
Tillv. art.nr100-FA31
VarumärkeAllen Bradley
301,15 kr
Each
Enheter
4 1NC + 3NO - Front Mount 10 A - 100F 4PST Screw -25°C +60°C -25 → +60 °C -
RS-artikelnummer 745-0698
Tillv. art.nr3RH1921-1DA11
VarumärkeSiemens
179,16 kr
Each
Enheter
- - Sirius Classic - - - 3RH1 - - - - - Auxiliary Switch Block
RS-artikelnummer 800-7286
Tillv. art.nr1SFN010820R1011 CAL19-11
VarumärkeABB
159,53 kr
Each
Enheter
4 2NC + 2NO - Side Mount 6 A 690 V ac CAL19 DP Screw - - - -
RS-artikelnummer 392-8967
Tillv. art.nr3RH1921-1CA10
VarumärkeSiemens
68,57 kr
Each
Enheter
1 1NO Sirius Classic Snap-On - - 3RH1 SP Screw - - - -
RS-artikelnummer 759-005
Tillv. art.nrLA7K0064
VarumärkeSchneider Electric
129,85 kr
Each
Enheter
- - - - - - - - - - - - -
RS-artikelnummer 791-2824
Tillv. art.nrA9A26924
VarumärkeSchneider Electric
408,50 kr
Each
Enheter
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 -