Auxiliary Contacts

pContacts are the conductive pieces of material that form part of an electrically controlled switch. a href="/web/c/relays/general-purpose-relay-accessories/auxiliary-contact-blocks/" target="_self"Auxiliary contacts/a form part of a contactor, which is a type of switch that can be controlled remotely. /ppContactors 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./pph2How do auxiliary contacts work?/h2/ppAuxiliary 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. /ppAlternatively, they can be used as a standalone hardware control unit./pph2What are auxiliary contacts used for?/h2/ppOne common usage of auxiliary contacts is in push button controllers, where they can be built in to the start button./p

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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 Series Number of Timing Ranges External Dimensions
RS Stock No. 122-1069
Mfr. Part No.BLB-11 EN
BrandWEG
HK$85.35
Each
units
2 NO/NC - Side Mount 10 A 690 V ac DPST Screw - - -25 → +55 °C BLB - -
RS Stock No. 209-5628
Mfr. Part No.M5723107
BrandMETCASE
HK$625.09
Each
units
- - - - - - - - - - - - - -
RS Stock No. 392-8951
Mfr. Part No.3RH1921-2CA10
BrandSiemens
HK$32.99
Each
units
1 NO Sirius Classic Snap-On - - SP Cage Clamp - - - 3RH1 - -
RS Stock No. 711-6326
Mfr. Part No.1SBN010110T1010
BrandABB
HK$40.97
Each
units
- 1NO AF Range - 6 A 600 V dc, 690 V ac - Screw - - - CA4 - -
RS Stock No. 122-1056
Mfr. Part No.BFB-04 EN
BrandWEG
HK$114.66
Each
units
4 4NC - Front Mount 10 A 690 V ac 4PST Screw - - -25 → +55 °C BFB - -
RS Stock No. 124-3129
Mfr. Part No.5ST3021
BrandSiemens
HK$236.93
Each
units
- - Sentron - - - - - - - - 5ST3 - -
RS Stock No. 706-0961
Mfr. Part No.3RH2911-2HA03
BrandSiemens
HK$86.10
Each
units
3 3NC Sirius Innovation Snap-On 6 A dc, 10 A ac 250 V dc, 690 V ac 3PST Cage Clamp -25°C +60°C -25 → +60 °C - - -
RS Stock No. 493-0680
Mfr. Part No.DILA-XHI22
BrandEaton
HK$106.27
Each
units
4 2NO/2NC - Front Mount 4 A ac, 10 A dc 220 V dc, 500 V ac 4PST Screw - - - DILA - -
RS Stock No. 326-611
Mfr. Part No.02DILEM
BrandEaton
HK$72.60
Each
units
2 2NC - Front Mount 2.5 A dc, 4 A ac 220 V dc, 500 V ac DPST Screw - - - - - -
RS Stock No. 189-3881
Mfr. Part No.40DILE
BrandEaton
HK$116.50
Each
units
4 4NO - Front Mount 2.5 A dc, 4 A ac 220 V dc, 500 V ac 4PST Screw - - - - - -
RS Stock No. 746-0709
Mfr. Part No.3RH1921-1HA31
BrandSiemens
HK$98.26
Each
units
4 3NO/NC Sirius Classic Snap Front - - 4P Screw - - - 3RH1 - -
RS Stock No. 122-0941
Mfr. Part No.BFC4-13
BrandWEG
HK$98.28
Each
units
4 NO/3NC - Front Mount 10 A 690 V ac 4PST Screw - - -25 → +55 °C BFC4 - -
RS Stock No. 178-8043
Mfr. Part No.NHI-E-10-PKZ0-C
BrandEaton
HK$86.90
Each
units
1 NO - Front Fastening 1 (AC) A, 2 (DC) A 250 V dc, 440 V ac 1P Spring Clamp -25°C +55°C -25 → +55 °C NHI - -
RS Stock No. 714-1795
Mfr. Part No.SSP25/RS
HK$69.16
Each
units
- - - Side Mount 25 A 690 V - Screw - - - - - -
RS Stock No. 209-5527
Mfr. Part No.M5720104
BrandMETCASE
HK$652.13
Each
units
- - - - - - - - - - - Mettec - 200 x 130 x 85mm
RS Stock No. 395-0352
Mfr. Part No.GV2AF3
HK$42.39
Each
units
- - - - - - - - - - - GV2A - -
RS Stock No. 706-0876
Mfr. Part No.3RH2911-1FA04
BrandSiemens
HK$98.09
Each
units
4 4NC 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 Stock No. 209-5634
Mfr. Part No.M5723127
BrandMETCASE
HK$541.56
Each
units
- - - - - - - - - - - - - -
RS Stock No. 419-2692
Mfr. Part No.3RH1911-2NF11
BrandSiemens
HK$258.30
Each
units
2 NO/NC - Snap-On 300 mA 60 V ac/dc DP Cage Clamp - - - 3RH1 - -
RS Stock No. 445-8021
Mfr. Part No.1SBN010010R1001
BrandABB
HK$39.52
Each
units
1 NC - Front Mount - - SP Screw - - - CA5 - -