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.


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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 External Dimensions External Length
RS庫存編號 482-4434
製造零件編號1SCA022353R4970
BrandABB
TWD351.00
單位
1 NO - - - - - - - - - - - -
RS庫存編號 818-277
製造零件編號NHI11-PKZ0
BrandEaton
TWD362.00
單位
2 NO/NC - Side Mount 2 A dc, 3.5 A ac 220 V dc, 500 V ac DPST Screw - - - - - -
RS庫存編號 373-2255
製造零件編號YM-150
TWD591.00
單位
- - - - - - - - - - - - - -
RS庫存編號 608-8775
製造零件編號GV7AC01
TWD897.00
單位
- - - - - - - - - - - GV7A - -
RS庫存編號 400-1473
製造零件編號LAD8N20
TWD555.00
單位
- 2NO - Side - - - Screw Clamp - - - LAD8 - -
RS庫存編號 373-2261
製造零件編號YM-180
TWD461.00
單位
- - - - - - - - - - - - - -
RS庫存編號 124-3131
製造零件編號5ST3030
BrandSiemens
TWD1,727.00
單位
- - Sentron - - - - - - - - 5ST3 - -
RS庫存編號 373-2277
製造零件編號YM-200
TWD512.00
單位
- - - - - - - - - - - - - -
RS庫存編號 706-0911
製造零件編號3RH2911-1HA20
BrandSiemens
TWD264.00
單位
2 2NO Sirius Innovation Snap-On 6 A ac, 10 A dc 250 V dc, 690 V ac DPST Screw -25°C +60°C -25 +60 °C 3RH2 - -
RS庫存編號 394-9914
製造零件編號LADN20
TWD362.00
單位
2 2NO TeSys Front Mount 10 A - DP Screw - - - LADN - -
RS庫存編號 333-546
製造零件編號HI11-P1/P3-Z/SOND
BrandEaton
TWD452.00
單位
2 NO/NC - Side Mount 10 A - - Screw - +50°C - - - -
RS庫存編號 373-2233
製造零件編號YM-100
TWD386.00
單位
- - - - - - - - - - - - - -
RS庫存編號 394-9879
製造零件編號LADN40
TWD596.00
單位
4 4NO TeSys Front Mount 10 A - 4P Screw - - - LADN - -
RS庫存編號 373-2227
製造零件編號YM-80
TWD326.00
單位
- - - - - - - - - - - - - -
RS庫存編號 373-2211
製造零件編號YM-50
TWD178.00
單位
- - - - - - - - - - - YM 50 x 45 x 30mm 50 mm
RS庫存編號 395-0100
製造零件編號GVAN20
TWD1,180.00
單位
2 2NO - Side Mount - 240 V dc, 690 V ac DP Screw - - - GVAN - -
RS庫存編號 445-8043
製造零件編號1SBN010040R1122 - CA5-22M
BrandABB
TWD1,228.00
單位
4 2NO/2NC - Front Mount 6 A 24 V dc, 230 V ac 4P Screw - - - CA5 - -
RS庫存編號 244-0107
製造零件編號NHI-E-11-PKZ0
BrandEaton
TWD404.00
單位
2 NO/NC - Front Mount 1 A ac, 2 A dc 24 V dc, 240 V ac DPST Screw - - - - - -
RS庫存編號 373-2249
製造零件編號YM-130
TWD455.00
單位
- - - - - - - - - - - - - -
RS庫存編號 751-5714
製造零件編號3RT1916-2FK21
BrandSiemens
TWD2,495.00
單位
2 NO/NC Sirius Classic DIN Rail Mount - - - Screw -25°C +60°C -25 +60 °C 3RT1 - -