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
New
RS Stock No. 192-1128
Mfr. Part No.1SBN010010R1010
BrandABB
HK$66.11
Each
units
1 1NO - Front Mount 6 A 24 V - Screw - - - - - -
RS Stock No. 373-2277
Mfr. Part No.YM-200
HK$114.73
Each
units
- - - - - - - - - - - - - -
RS Stock No. 392-7324
Mfr. Part No.3RH1921-2FA40
BrandSiemens
HK$98.32
Each
units
4 4NO Sirius Classic Snap-On - - 4P Cage Clamp - - - 3RH1 - -
New
RS Stock No. 192-0814
Mfr. Part No.66427
BrandABB
HK$1,120.75
Each
units
3 CO - DIN Rail Mount - 250 V ac/dc SPDT - - - - - - -
RS Stock No. 711-6382
Mfr. Part No.CA4-40U
BrandABB
HK$132.34
Each
units
4 4NO - Front Mount 6 A 600 V dc, 690 V ac 4P Screw - - - CA4 - -
RS Stock No. 122-1052
Mfr. Part No.BFB-20 EN
BrandWEG
HK$68.11
Each
units
2 2NO - Front Mount 10 A 690 V ac DPST Screw - - -25 → +55 °C BFB - -
RS Stock No. 121-6868
BrandRS PRO
HK$37.61
Each
units
1 NC - DIN Rail Mount - - - Screw -25°C +60°C -25 → +60 °C HRS - -
RS Stock No. 746-0702
Mfr. Part No.3RH1921-1HA13
BrandSiemens
HK$98.26
Each
units
4 NO/3NC Sirius Classic Snap Front - - 4P Screw - - - 3RH1 - -
RS Stock No. 714-1773
Mfr. Part No.SAUX2EB
HK$127.58
Each
units
2 - - Side Mount - - DP Screw - - - - - -
RS Stock No. 706-0920
Mfr. Part No.3RH2911-1HA21
BrandSiemens
HK$83.58
Each
units
3 2NO/NC Sirius Innovation Snap-On 6 A ac, 10 A dc 250 V dc, 690 V ac 3PST Screw -25°C +60°C -25 → +60 °C - - -
RS Stock No. 745-0689
Mfr. Part No.3RH1911-1MA20
BrandSiemens
HK$385.00
Each
units
2 2NO Sirius Classic Front Mount 10 A 600 V ac - Cage Clamp -25°C +60°C -25 → +60 °C 3RH1 - -
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