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Electrical contacts

Electrical contacts are the conductive tips inside a contactor, relay or switch that actually carry the current, and the first thing to erode every time the device makes or breaks a load. Service shops rebuild with them when a contactor still has a sound frame and coil but pitted tips, when arcing has begun to weld a set closed, or when a critical starter needs a contact kit on the shelf before it fails.
 
As an authorized electrical distributor for multiple manufacturers, we stock contact kits and replacement contacts across competing lines, in a full range of sizes and current ratings, so you can match the contactor or relay the kit has to fit, compare kits brand to brand, and rebuild a starter for a fraction of a replacement. Same-day shipping on in-stock items ordered before 2pm local time.
371 items
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Siemens 3RH29111HA11 SIRIUS Auxiliary Switch Block
SKU #:2254597
Part Number #:3RH29111HA11
Fast Delivery Est.Nov 9 - Nov 13
Ships Same Day
280 In Stock
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$21.53 / EA
Typical price:$52.50 / EA
Siemens 3RH29111HA12 SIRIUS Auxiliary Switch Block
SKU #:2246027
Part Number #:3RH29111HA12
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$29.83 / EA
Typical price:$72.00 / EA
Siemens 3RH29111HA13 SIRIUS Auxiliary Switch Block
SKU #:2303003
Part Number #:3RH29111HA13
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$36.46 / EA
Typical price:$88.00 / EA
Siemens 3RH29111HA20 SIRIUS Auxiliary Switch Block
SKU #:2289721
Part Number #:3RH29111HA20
Price:
$21.74 / EA
Typical price:$52.50 / EA
Siemens 3RH29111HA21 SIRIUS Auxiliary Switch Block
SKU #:2278447
Part Number #:3RH29111HA21
Price:
$29.83 / EA
Typical price:$72.00 / EA
Siemens 3RH29111HA22 SIRIUS Auxiliary Switch Block
SKU #:2254598
Part Number #:3RH29111HA22
Fast Delivery Est.Nov 9 - Nov 13
Ships Same Day
26 In Stock
Price:
$36.46 / EA
Typical price:$88.00 / EA
Siemens 3RH29111HA30 SIRIUS Auxiliary Switch Block
SKU #:2270484
Part Number #:3RH29111HA30
Fast Delivery Est.Nov 9 - Nov 13
Ships Same Day
11 In Stock
Price:
$29.83 / EA
Typical price:$72.00 / EA
Siemens 3RH29111HA31 SIRIUS Auxiliary Switch Block
SKU #:2263135
Part Number #:3RH29111HA31
Fast Delivery Est.Nov 9 - Nov 13
Ships Same Day
Only 1 left in stock order soon
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$36.46 / EA
Typical price:$88.00 / EA
Siemens 3RH29111LA11 SIRIUS Auxiliary Switch Block
SKU #:2228145
Part Number #:3RH29111LA11
Fast Delivery Est.Nov 9 - Nov 13
Ships Same Day
Only 9 left in stock order soon
Price:
$25.47 / EA
Typical price:$61.50 / EA
Siemens 3RH29111LA20 SIRIUS Auxiliary Switch Block
SKU #:2222937
Part Number #:3RH29111LA20
Price:
$25.47 / EA
Typical price:$61.50 / EA
Siemens 3RH29111MA11 SIRIUS Auxiliary Switch Block
SKU #:2229532
Part Number #:3RH29111MA11
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$25.47 / EA
Typical price:$61.50 / EA
Siemens 3RH29111MA20 SIRIUS Auxiliary Switch Block
SKU #:2307721
Part Number #:3RH29111MA20
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$25.47 / EA
Typical price:$61.50 / EA
Siemens 3RH29111NF02 SIRIUS Auxiliary Switch Block
SKU #:2272321
Part Number #:3RH29111NF02
Amperage Rating: 0.3 A
Dimensions: 37.5 mm H x 36 mm W x 43.7 mm D
Environmental Conditions: -55 to 80 deg C Storage Temperature
Price:
$87.83 / EA
Typical price:$212.00 / EA
Siemens 3RH29111NF11 SIRIUS Auxiliary Switch Block
SKU #:2272129
Part Number #:3RH29111NF11
Price:
$87.83 / EA
Typical price:$212.00 / EA
Siemens 3RH29111NF20 SIRIUS Auxiliary Switch Block
SKU #:2281311
Part Number #:3RH29111NF20
Price:
$87.83 / EA
Typical price:$212.00 / EA
Siemens 3RH29111XA220MA0 Sirius Auxiliary Switch Block
SKU #:2399671
Part Number #:3RH29111XA220MA0
Mounting type: Front/Snap-On
Price:
$36.46 / EA
Typical price:$88.00 / EA
Siemens 3RH29111XA310MA0 SIRIUS Auxiliary Switch Block
SKU #:2301344
Part Number #:3RH29111XA310MA0
Amperage Rating: 1/3/10 A
Operating Cycles: 10000000 Mechanical/200000 Electrical
Suitable For Use With: 3RH/3RT Screw Terminal Power Contactor and Contactor Relays
Price:
$36.46 / EA
Typical price:$88.00 / EA
Siemens 3RH29111XA400MA0 Sirius Auxiliary Switch Block
SKU #:2386369
Part Number #:3RH29111XA400MA0
Price:
$36.46 / EA
Typical price:$88.00 / EA
Siemens 3RH29111YA210MA0
SKU #:2464890
Part Number #:3RH29111YA210MA0
Number of Contacts: 2NO-1NC
Price:
$29.83 / EA
Typical price:$72.00 / EA
Siemens 3RH29112DA02 Sirius Auxiliary Switch Block
SKU #:2398072
Part Number #:3RH29112DA02
Amperage Rating: 1/3/10 A
Number of Contacts: 2NC
Operating Cycles: 10000000 Mechanical/200000 Electrical
Price:
$33.76 / EA
Typical price:$81.50 / EA
Siemens 3RH29112DA11 SIRIUS Auxiliary Switch Block
SKU #:2358319
Part Number #:3RH29112DA11
Price:
$33.76 / EA
Typical price:$81.50 / EA
Siemens 3RH29112DA20 SIRIUS Auxiliary Switch Block
SKU #:2345802
Part Number #:3RH29112DA20
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$33.76 / EA
Typical price:$81.50 / EA
Siemens 3RH29112FA04 SIRIUS Auxiliary Switch Block
SKU #:2294060
Part Number #:3RH29112FA04
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$37.49 / EA
Typical price:$90.50 / EA
Siemens 3RH29112FA22 SIRIUS Auxiliary Switch Block
SKU #:2269642
Part Number #:3RH29112FA22
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$37.49 / EA
Typical price:$90.50 / EA
Siemens 3RH29112FA40 SIRIUS Auxiliary Switch Block
SKU #:2269695
Part Number #:3RH29112FA40
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$37.49 / EA
Typical price:$90.50 / EA
Siemens 3RH29112FC22 SIRIUS Auxiliary Switch Block
SKU #:2322565
Part Number #:3RH29112FC22
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$59.24 / EA
Typical price:$143.00 / EA
Siemens 3RH29112GA04
SKU #:2453020
Part Number #:3RH29112GA04
Dimensions: 41.5 mm H x 36 mm W x 47.7 mm D
Suitable For Use With: Size S00 Contactor
Price:
$37.49 / EA
Typical price:$90.50 / EA
Siemens 3RH29112GA22 SIRIUS Auxiliary Switch Block
SKU #:2309236
Part Number #:3RH29112GA22
Price:
$37.49 / EA
Typical price:$90.50 / EA
Siemens 3RH29112GA31 SIRIUS Auxiliary Switch Block
SKU #:2382131
Part Number #:3RH29112GA31
Price:
$37.49 / EA
Typical price:$90.50 / EA
Siemens 3RH29112GA40 Sirius Auxiliary Switch Block
SKU #:2404202
Part Number #:3RH29112GA40
Dimensions: 41.5 mm H x 36 mm W x 47.7 mm D
Suitable For Use With: 3RH2140, 3RH2440 Contactor Relay
Mounting type: Front/Snap-On
Price:
$37.49 / EA
Typical price:$90.50 / EA
Siemens 3RH29112HA01 SIRIUS Auxiliary Switch Block
SKU #:2365682
Part Number #:3RH29112HA01
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$17.81 / EA
Typical price:$43.00 / EA
Siemens 3RH29112HA02 SIRIUS Auxiliary Switch Block
SKU #:2233823
Part Number #:3RH29112HA02
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$22.37 / EA
Typical price:$54.00 / EA
Siemens 3RH29111HA11 SIRIUS Auxiliary Switch Block
SKU #:2254597
Part Number #:3RH29111HA11
Fast Delivery Est.Nov 9 - Nov 13
Ships Same Day
280 In Stock
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$21.53 / EA
Typical price:$52.50 / EA
Siemens 3RH29111HA12 SIRIUS Auxiliary Switch Block
SKU #:2246027
Part Number #:3RH29111HA12
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$29.83 / EA
Typical price:$72.00 / EA
Siemens 3RH29111HA13 SIRIUS Auxiliary Switch Block
SKU #:2303003
Part Number #:3RH29111HA13
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$36.46 / EA
Typical price:$88.00 / EA
Siemens 3RH29111HA20 SIRIUS Auxiliary Switch Block
SKU #:2289721
Part Number #:3RH29111HA20
Price:
$21.74 / EA
Typical price:$52.50 / EA
Siemens 3RH29111HA21 SIRIUS Auxiliary Switch Block
SKU #:2278447
Part Number #:3RH29111HA21
Price:
$29.83 / EA
Typical price:$72.00 / EA
Siemens 3RH29111HA22 SIRIUS Auxiliary Switch Block
SKU #:2254598
Part Number #:3RH29111HA22
Fast Delivery Est.Nov 9 - Nov 13
Ships Same Day
26 In Stock
Price:
$36.46 / EA
Typical price:$88.00 / EA
Siemens 3RH29111HA30 SIRIUS Auxiliary Switch Block
SKU #:2270484
Part Number #:3RH29111HA30
Fast Delivery Est.Nov 9 - Nov 13
Ships Same Day
11 In Stock
Price:
$29.83 / EA
Typical price:$72.00 / EA
Siemens 3RH29111HA31 SIRIUS Auxiliary Switch Block
SKU #:2263135
Part Number #:3RH29111HA31
Fast Delivery Est.Nov 9 - Nov 13
Ships Same Day
Only 1 left in stock order soon
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$36.46 / EA
Typical price:$88.00 / EA
Siemens 3RH29111LA11 SIRIUS Auxiliary Switch Block
SKU #:2228145
Part Number #:3RH29111LA11
Fast Delivery Est.Nov 9 - Nov 13
Ships Same Day
Only 9 left in stock order soon
Price:
$25.47 / EA
Typical price:$61.50 / EA
Siemens 3RH29111LA20 SIRIUS Auxiliary Switch Block
SKU #:2222937
Part Number #:3RH29111LA20
Price:
$25.47 / EA
Typical price:$61.50 / EA
Siemens 3RH29111MA11 SIRIUS Auxiliary Switch Block
SKU #:2229532
Part Number #:3RH29111MA11
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$25.47 / EA
Typical price:$61.50 / EA
Siemens 3RH29111MA20 SIRIUS Auxiliary Switch Block
SKU #:2307721
Part Number #:3RH29111MA20
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$25.47 / EA
Typical price:$61.50 / EA
Siemens 3RH29111NF02 SIRIUS Auxiliary Switch Block
SKU #:2272321
Part Number #:3RH29111NF02
Amperage Rating: 0.3 A
Dimensions: 37.5 mm H x 36 mm W x 43.7 mm D
Environmental Conditions: -55 to 80 deg C Storage Temperature
Price:
$87.83 / EA
Typical price:$212.00 / EA
Siemens 3RH29111NF11 SIRIUS Auxiliary Switch Block
SKU #:2272129
Part Number #:3RH29111NF11
Price:
$87.83 / EA
Typical price:$212.00 / EA
Siemens 3RH29111NF20 SIRIUS Auxiliary Switch Block
SKU #:2281311
Part Number #:3RH29111NF20
Price:
$87.83 / EA
Typical price:$212.00 / EA
Siemens 3RH29111XA220MA0 Sirius Auxiliary Switch Block
SKU #:2399671
Part Number #:3RH29111XA220MA0
Mounting type: Front/Snap-On
Price:
$36.46 / EA
Typical price:$88.00 / EA
Siemens 3RH29111XA310MA0 SIRIUS Auxiliary Switch Block
SKU #:2301344
Part Number #:3RH29111XA310MA0
Amperage Rating: 1/3/10 A
Operating Cycles: 10000000 Mechanical/200000 Electrical
Suitable For Use With: 3RH/3RT Screw Terminal Power Contactor and Contactor Relays
Price:
$36.46 / EA
Typical price:$88.00 / EA
Siemens 3RH29111XA400MA0 Sirius Auxiliary Switch Block
SKU #:2386369
Part Number #:3RH29111XA400MA0
Price:
$36.46 / EA
Typical price:$88.00 / EA
Siemens 3RH29111YA210MA0
SKU #:2464890
Part Number #:3RH29111YA210MA0
Number of Contacts: 2NO-1NC
Price:
$29.83 / EA
Typical price:$72.00 / EA
Siemens 3RH29112DA02 Sirius Auxiliary Switch Block
SKU #:2398072
Part Number #:3RH29112DA02
Amperage Rating: 1/3/10 A
Number of Contacts: 2NC
Operating Cycles: 10000000 Mechanical/200000 Electrical
Price:
$33.76 / EA
Typical price:$81.50 / EA
Siemens 3RH29112DA11 SIRIUS Auxiliary Switch Block
SKU #:2358319
Part Number #:3RH29112DA11
Price:
$33.76 / EA
Typical price:$81.50 / EA
Siemens 3RH29112DA20 SIRIUS Auxiliary Switch Block
SKU #:2345802
Part Number #:3RH29112DA20
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$33.76 / EA
Typical price:$81.50 / EA
Siemens 3RH29112FA04 SIRIUS Auxiliary Switch Block
SKU #:2294060
Part Number #:3RH29112FA04
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$37.49 / EA
Typical price:$90.50 / EA
Siemens 3RH29112FA22 SIRIUS Auxiliary Switch Block
SKU #:2269642
Part Number #:3RH29112FA22
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$37.49 / EA
Typical price:$90.50 / EA
Siemens 3RH29112FA40 SIRIUS Auxiliary Switch Block
SKU #:2269695
Part Number #:3RH29112FA40
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$37.49 / EA
Typical price:$90.50 / EA
Siemens 3RH29112FC22 SIRIUS Auxiliary Switch Block
SKU #:2322565
Part Number #:3RH29112FC22
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$59.24 / EA
Typical price:$143.00 / EA
Siemens 3RH29112GA04
SKU #:2453020
Part Number #:3RH29112GA04
Dimensions: 41.5 mm H x 36 mm W x 47.7 mm D
Suitable For Use With: Size S00 Contactor
Price:
$37.49 / EA
Typical price:$90.50 / EA
Siemens 3RH29112GA22 SIRIUS Auxiliary Switch Block
SKU #:2309236
Part Number #:3RH29112GA22
Price:
$37.49 / EA
Typical price:$90.50 / EA
Siemens 3RH29112GA31 SIRIUS Auxiliary Switch Block
SKU #:2382131
Part Number #:3RH29112GA31
Price:
$37.49 / EA
Typical price:$90.50 / EA
Siemens 3RH29112GA40 Sirius Auxiliary Switch Block
SKU #:2404202
Part Number #:3RH29112GA40
Dimensions: 41.5 mm H x 36 mm W x 47.7 mm D
Suitable For Use With: 3RH2140, 3RH2440 Contactor Relay
Mounting type: Front/Snap-On
Price:
$37.49 / EA
Typical price:$90.50 / EA
Siemens 3RH29112HA01 SIRIUS Auxiliary Switch Block
SKU #:2365682
Part Number #:3RH29112HA01
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$17.81 / EA
Typical price:$43.00 / EA
Siemens 3RH29112HA02 SIRIUS Auxiliary Switch Block
SKU #:2233823
Part Number #:3RH29112HA02
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$22.37 / EA
Typical price:$54.00 / EA