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.

The auxiliary component is typically available in a variety of mounting styles such as front mount or DIN rail mount and a range of terminal types including screw terminals and cage clamps 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.


...
Read more Read less

Filters

Viewing 1 - 20 of 61 products
Results per page
Description Price 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 Priced to Clear Series External Width
RS Stock No. 482-4434
Mfr. Part No.OA1G10 1SCA022353R4970
BrandABB
£8.23
Each
Units
1 1NO - - - - - - - - - - - -
RS Stock No. 488-6448
Mfr. Part No.2CDS200922R0001 S2C-S/H6R
BrandABB
£25.05
Each
Units
2 1NO/1NC - Side Mount 1.5 A dc, 6 A ac 110 V dc, 240 V ac DP Screw - - - - S2C -
RS Stock No. 445-8021
Mfr. Part No.1SBN010010R1001
BrandABB
£4.77
Each
Units
1 1NC - Front Mount - - SP Screw - - - - CA5 -
RS Stock No. 488-7384
Mfr. Part No.2CDS200912R0001 S2C-H6R
BrandABB
£21.05
Each
Units
2 1NO/1NC - Side Mount - - DP Screw - - - - - -
RS Stock No. 711-6329
Mfr. Part No.1SBN010110R1001 CA4-01
BrandABB
£4.74
Each
Units
1 1NC - Front Mount 6 A 600 V dc, 690 V ac SP Screw - - - - CA4 -
RS Stock No. 711-6310
Mfr. Part No.1SBN010120R1011 CAL4-11
BrandABB
£10.76
Each
Units
2 1NO/1NC - Side Mount 6 A 600 V dc, 690 V ac DP Screw -40°C +70°C -40 → +70 °C - CAL4-11 -
RS Stock No. 445-8043
Mfr. Part No.1SBN010040R1122 - CA5-22M
BrandABB
£27.88
Each
Units
4 2NO/2NC - Front Mount 6 A 24 V dc, 230 V ac 4P Screw - - - - CA5 -
RS Stock No. 711-6317
Mfr. Part No.1SBN010110R1010 CA4-10
BrandABB
£4.74
Each
Units
1 1NO - Front Mount 6 A 600 V dc, 690 V ac SP Screw - - - - CA4 -
RS Stock No. 445-0421
Mfr. Part No.1SAM201902R1001 HK1-11
BrandABB
£10.75
Each
Units
2 1NO/1NC - Side Mount 2 A dc, 6 A ac 220 V dc, 400 V ac DP - - - - - HK1 -
RS Stock No. 456-0253
Mfr. Part No.1SBN010020R1011
BrandABB
£13.39
Each
Units
2 1NO/1NC - Side Mount - - DP Screw - - - - CAL5 -
RS Stock No. 711-6354
Mfr. Part No.1SBN010140R1022 CA4-22E
BrandABB
£16.95
Each
Units
4 2NO/2NC - Front Mount 6 A 600 V dc, 690 V ac 4P Screw - - - - CA4 -
RS Stock No. 445-0415
Mfr. Part No.1SAM201901R1001 HKF1-11
BrandABB
£10.26
Each
Units
2 1NO/1NC - Front Mount 1 A dc, 3 A ac 220 V dc, 230 V ac DP - - - - - HK1 -
RS Stock No. 467-5490
Mfr. Part No.1SDA051370R1 AUX-C T1-T2-T3 1Q 1SY
BrandABB
£67.02
Each
Units
1 1CO - - - - SPDT - - - - - TMAX -
RS Stock No. 512-9516
Mfr. Part No.OA3G01 1SCA022456R7410
BrandABB
£8.17
Each
Units
1 NC - Snap-On - - SP - - - - - - -
RS Stock No. 800-7295
Mfr. Part No.1SFN010820R3311 CAL19-11B
BrandABB
£21.83
Each
Units
4 2NO/2NC - Side Mount 6 A 690 V ac DP Screw - - - - CAL19 -
RS Stock No. 800-7286
Mfr. Part No.1SFN010820R1011 CAL19-11
BrandABB
£21.83
Each
Units
4 2NO/2NC - Side Mount 6 A 690 V ac DP Screw - - - - CAL19 -
RS Stock No. 435-421
Mfr. Part No.2CCS800900R0021 S800-AUX/ALT
BrandABB
£41.47
Each
Units
2 2NO/2NC - DIN Rail Mount 4 A dc, 6 A ac 250 V dc, 400 V ac DPDT Screw -25°C +60°C -25 → +60 °C - S800 -
RS Stock No. 445-8166
Mfr. Part No.GJL1201330R0003 - CAF6-11M
BrandABB
£7.63
Each
Units
2 1NO/1NC - Front Mount - 240 V dc, 500 V ac DP Screw - - - - B6 -
RS Stock No. 831-9191
Mfr. Part No.1SDA066423R1 AUX 1Q 24Vdc XT1...XT4
BrandABB
£25.39
Each
Units
1 1CO - - - 24 V dc - - - - - - XT1 -
RS Stock No. 711-6339
Mfr. Part No.1SBN010151R1011 CAT4-11E
BrandABB
£10.23
Each
Units
2 1NO/1NC - Front Mount 6 A 600 V dc, 690 V ac DP Screw - - - - CAT4 -