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.

What are auxiliary contacts used for?

One common usage of auxiliary contacts is in push button controllers, where they can be built in to the start button.


...
顯示內容 隱藏內容

篩選條件

正在檢視 481 - 495,共 495 項產品
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 Series Number of Timing Ranges External Dimensions
RS庫存編號 706-0866
製造零件編號3RH2911-1BA10
BrandSiemens
HK$48.09
單位
1 NO Sirius Innovation Snap-On 6 A ac, 10 A dc 250 V dc, 690 V ac SPST Screw -25°C +60°C -25 → +60 °C 3RH2 - -
RS庫存編號 187-560
製造零件編號VZN05
HK$67.70
單位
1 NO - - - - SP - - - - VZN0 - -
RS庫存編號 257-3724
製造零件編號VZ3
HK$159.00
單位
1 - - Side Mount 50 A 690 V ac SP Screw -20°C +50°C -20 → +50 °C VZ3 - -
RS庫存編號 706-0961
製造零件編號3RH2911-2HA03
BrandSiemens
HK$86.10
單位
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庫存編號 711-6351
製造零件編號CA4-04E
BrandABB
HK$132.34
單位
4 4NC - Front Mount 6 A 600 V dc, 690 V ac 4P Screw - - - CA4 - -
RS庫存編號 373-2211
製造零件編號YM-50
HK$39.81
單位
- - - - - - - - - - - YM - 50 x 45 x 30mm
RS庫存編號 833-5758
製造零件編號KT3AS
BrandABB
HK$739.72
單位
- - - Panel Mount - 250 V ac/dc DPDT Screw - - - KT3 - -
RS庫存編號 392-8951
製造零件編號3RH1921-2CA10
BrandSiemens
HK$32.99
單位
1 NO Sirius Classic Snap-On - - SP Cage Clamp - - - 3RH1 - -
RS庫存編號 706-0920
製造零件編號3RH2911-1HA21
BrandSiemens
HK$83.58
單位
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庫存編號 706-0958
製造零件編號3RH2911-2FB11
BrandSiemens
HK$129.15
單位
2 NO/NC Sirius Innovation Snap-On 6 A ac, 10 A dc 250 V dc, 690 V ac DPST Cage Clamp -25°C +60°C -25 → +60 °C - - -
RS庫存編號 445-0421
製造零件編號1SAM201902R1001
BrandABB
HK$80.10
單位
2 NO/NC - Side Mount 2 A dc, 6 A ac 220 V dc, 400 V ac DP - - - - HK1 - -
RS庫存編號 209-5892
製造零件編號M5725314
BrandMETCASE
HK$1,215.66
單位
- - - - - - - - - - - Mettec - 250 x 263 x 150mm
RS庫存編號 706-0917
製造零件編號3RH2911-1HA13
BrandSiemens
HK$112.20
單位
4 NO/3NC 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庫存編號 209-5870
製造零件編號M5735217
BrandMETCASE
HK$1,223.41
單位
- - - - - - - - - - - Mettec - 350 x 263 x 120mm
RS庫存編號 326-734
製造零件編號22DILE
BrandEaton
HK$115.68
單位
4 2NO/2NC - Front Mount 2.5 A dc, 4 A ac 220 V dc, 500 V ac 4PST Screw - - - - - -