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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 3RH1921-1KA20 SIRIUS Auxiliary Switch Block
SKU #:2197035
Part Number #:3RH1921-1KA20
Size: Size S3 to S12
Price:
$27.43 / EA
Typical price:$64.00 / EA
Siemens 3RH1921-1XA22-0MA0 SIRIUS Auxiliary Switch Block
SKU #:2334658
Part Number #:3RH1921-1XA22-0MA0
Dimensions: 38 mm H x 44 mm W x 51 mm D
Environmental Conditions: -55 to 80 Storage Temperature
Number of Contacts: 4
Price:
$35.57 / EA
Typical price:$83.00 / EA
Siemens 3RH1921-2CA01 Auxiliary Switch Block
SKU #:45019
Part Number #:3RH1921-2CA01
Amperage Rating: 0.26/1 A
Price:
$10.46 / EA
Typical price:$24.40 / EA
Siemens 3RH1921-2CA10 Auxiliary Switch Block
SKU #:45020
Part Number #:3RH1921-2CA10
Price:
$10.46 / EA
Typical price:$24.40 / EA
Siemens 3RH1921-2DA11 SIRIUS Auxiliary Switch Block
SKU #:867499
Part Number #:3RH1921-2DA11
Price:
$27.43 / EA
Typical price:$64.00 / EA
Siemens 3RH1921-2DE11 SIRIUS Auxiliary Switch Block
SKU #:1935352
Part Number #:3RH1921-2DE11
Suitable For Use With: 3RT1 Contactor Relay, Power Contactor
Type: Lateral Electronic
Price:
$79.29 / EA
Typical price:$185.00 / EA
Siemens 3RH1921-2EA02 SIRIUS Auxiliary Switch Block
SKU #:993788
Part Number #:3RH1921-2EA02
Price:
$27.43 / EA
Typical price:$64.00 / EA
Siemens 3RH1921-2EA20 SIRIUS Auxiliary Switch Block
SKU #:2162645
Part Number #:3RH1921-2EA20
Size: Size S0
Price:
$27.43 / EA
Typical price:$64.00 / EA
Siemens 3RH1921-2JA11 SIRIUS Auxiliary Switch Block
SKU #:2188300
Part Number #:3RH1921-2JA11
Amperage Rating: 1/0.26 A
Dimensions: 72.5 mm H x 10 mm W x 71 mm D
Environmental Conditions: -55 to 80 deg C
Price:
$27.43 / EA
Typical price:$64.00 / EA
Siemens 3RH1921-2XA22-0MA0 Auxiliary Switch Block
SKU #:2411654
Part Number #:3RH1921-2XA22-0MA0
Dimensions: 40 mm H x 44 mm W x 51 mm D
Size: S0 to S12
Suitable For Use With: 3RT1 4-Pole Contactor Relay and Power Contactor
Price:
$35.57 / EA
Typical price:$83.00 / EA
Siemens 3RH29111AA01 SIRIUS Auxiliary Switch Block
SKU #:2231499
Part Number #:3RH29111AA01
Fast Delivery Est.Nov 9 - Nov 13
Ships Same Day
68 In Stock
Dimensions: 27.5 mm H x 23.6 mm W x 38.6 mm D
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$17.81 / EA
Typical price:$43.00 / EA
Siemens 3RH29111AA10 SIRIUS Auxiliary Switch Block
SKU #:2268131
Part Number #:3RH29111AA10
Dimensions: 27.5 mm H x 23.6 mm W x 38.6 mm D
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$17.81 / EA
Typical price:$43.00 / EA
Siemens 3RH29111BA01 SIRIUS Auxiliary Switch Block
SKU #:2222680
Part Number #:3RH29111BA01
Dimensions: 27.5 mm H x 23.6 mm W x 38.6 mm D
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$17.81 / EA
Typical price:$43.00 / EA
Siemens 3RH29111BA10 SIRIUS Auxiliary Switch Block
SKU #:2228178
Part Number #:3RH29111BA10
Dimensions: 27.5 mm H x 23.6 mm W x 38.6 mm D
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$17.81 / EA
Typical price:$43.00 / EA
Siemens 3RH29111DA02 SIRIUS Auxiliary Switch Block
SKU #:2293284
Part Number #:3RH29111DA02
Dimensions: 57.4 mm H x 10 mm W x 66 mm D
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$32.73 / EA
Typical price:$79.00 / EA
Siemens 3RH29111DA11 SIRIUS Auxiliary Switch Block
SKU #:2222492
Part Number #:3RH29111DA11
Dimensions: 57.4 mm H x 10 mm W x 66 mm D
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$32.73 / EA
Typical price:$79.00 / EA
Siemens 3RH29111DA20 SIRIUS Auxiliary Switch Block
SKU #:2222939
Part Number #:3RH29111DA20
Dimensions: 57.4 mm H x 10 mm W x 66 mm D
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$32.73 / EA
Typical price:$79.00 / EA
Siemens 3RH29111FA04 SIRIUS Auxiliary Switch Block
SKU #:2314841
Part Number #:3RH29111FA04
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$36.46 / EA
Typical price:$88.00 / EA
Siemens 3RH29111FA22 SIRIUS Auxiliary Switch Block
SKU #:2263529
Part Number #:3RH29111FA22
Fast Delivery Est.Nov 9 - Nov 13
Ships Same Day
40 In Stock
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$35.36 / EA
Typical price:$88.00 / EA
Siemens 3RH29111FA40 SIRIUS Auxiliary Switch Block
SKU #:2239343
Part Number #:3RH29111FA40
Fast Delivery Est.Nov 9 - Nov 13
Ships Same Day
Only 3 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 3RH29111FB11 SIRIUS Auxiliary Switch Block
SKU #:2312634
Part Number #:3RH29111FB11
Price:
$43.09 / EA
Typical price:$104.00 / EA
Siemens 3RH29111FB22 SIRIUS Auxiliary Switch Block
SKU #:2376932
Part Number #:3RH29111FB22
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$64.63 / EA
Typical price:$156.00 / EA
Siemens 3RH29111FC22 SIRIUS Auxiliary Switch Block
SKU #:2313519
Part Number #:3RH29111FC22
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$58.41 / EA
Typical price:$141.00 / EA
Siemens 3RH29111GA04 SIRIUS Auxiliary Switch Block
SKU #:2274543
Part Number #:3RH29111GA04
Price:
$36.46 / EA
Typical price:$88.00 / EA
Siemens 3RH29111GA13 SIRIUS Auxiliary Switch Block
SKU #:2313892
Part Number #:3RH29111GA13
Price:
$36.46 / EA
Typical price:$88.00 / EA
Siemens 3RH29111GA22 SIRIUS Auxiliary Switch Block
SKU #:2274915
Part Number #:3RH29111GA22
Fast Delivery Est.Nov 9 - Nov 13
Ships Same Day
Only 6 left in stock order soon
Price:
$36.46 / EA
Typical price:$88.00 / EA
Siemens 3RH29111GA31 SIRIUS Auxiliary Switch Block
SKU #:2274101
Part Number #:3RH29111GA31
Price:
$36.46 / EA
Typical price:$88.00 / EA
Siemens 3RH29111GA40 SIRIUS Auxiliary Switch Block
SKU #:2271551
Part Number #:3RH29111GA40
Price:
$36.46 / EA
Typical price:$88.00 / EA
Siemens 3RH29111HA01 SIRIUS Auxiliary Switch Block
SKU #:2228183
Part Number #:3RH29111HA01
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$17.19 / EA
Typical price:$41.50 / EA
Siemens 3RH29111HA02 SIRIUS Auxiliary Switch Block
SKU #:2275677
Part Number #:3RH29111HA02
Price:
$21.74 / EA
Typical price:$52.50 / EA
Siemens 3RH29111HA03 Auxiliary Switch Block
SKU #:2400749
Part Number #:3RH29111HA03
Dimensions: 36 mm W x 43.7 mm D x 37.5 mm H
Environmental Conditions: -55 to 80 deg C
Number of Contacts: 3NC
Price:
$29.83 / EA
Typical price:$72.00 / EA
Siemens 3RH29111HA10 SIRIUS Auxiliary Switch Block
SKU #:2284551
Part Number #:3RH29111HA10
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$17.19 / EA
Typical price:$41.50 / EA
Siemens 3RH1921-1KA20 SIRIUS Auxiliary Switch Block
SKU #:2197035
Part Number #:3RH1921-1KA20
Size: Size S3 to S12
Price:
$27.43 / EA
Typical price:$64.00 / EA
Siemens 3RH1921-1XA22-0MA0 SIRIUS Auxiliary Switch Block
SKU #:2334658
Part Number #:3RH1921-1XA22-0MA0
Dimensions: 38 mm H x 44 mm W x 51 mm D
Environmental Conditions: -55 to 80 Storage Temperature
Number of Contacts: 4
Price:
$35.57 / EA
Typical price:$83.00 / EA
Siemens 3RH1921-2CA01 Auxiliary Switch Block
SKU #:45019
Part Number #:3RH1921-2CA01
Amperage Rating: 0.26/1 A
Price:
$10.46 / EA
Typical price:$24.40 / EA
Siemens 3RH1921-2CA10 Auxiliary Switch Block
SKU #:45020
Part Number #:3RH1921-2CA10
Price:
$10.46 / EA
Typical price:$24.40 / EA
Siemens 3RH1921-2DA11 SIRIUS Auxiliary Switch Block
SKU #:867499
Part Number #:3RH1921-2DA11
Price:
$27.43 / EA
Typical price:$64.00 / EA
Siemens 3RH1921-2DE11 SIRIUS Auxiliary Switch Block
SKU #:1935352
Part Number #:3RH1921-2DE11
Suitable For Use With: 3RT1 Contactor Relay, Power Contactor
Type: Lateral Electronic
Price:
$79.29 / EA
Typical price:$185.00 / EA
Siemens 3RH1921-2EA02 SIRIUS Auxiliary Switch Block
SKU #:993788
Part Number #:3RH1921-2EA02
Price:
$27.43 / EA
Typical price:$64.00 / EA
Siemens 3RH1921-2EA20 SIRIUS Auxiliary Switch Block
SKU #:2162645
Part Number #:3RH1921-2EA20
Size: Size S0
Price:
$27.43 / EA
Typical price:$64.00 / EA
Siemens 3RH1921-2JA11 SIRIUS Auxiliary Switch Block
SKU #:2188300
Part Number #:3RH1921-2JA11
Amperage Rating: 1/0.26 A
Dimensions: 72.5 mm H x 10 mm W x 71 mm D
Environmental Conditions: -55 to 80 deg C
Price:
$27.43 / EA
Typical price:$64.00 / EA
Siemens 3RH1921-2XA22-0MA0 Auxiliary Switch Block
SKU #:2411654
Part Number #:3RH1921-2XA22-0MA0
Dimensions: 40 mm H x 44 mm W x 51 mm D
Size: S0 to S12
Suitable For Use With: 3RT1 4-Pole Contactor Relay and Power Contactor
Price:
$35.57 / EA
Typical price:$83.00 / EA
Siemens 3RH29111AA01 SIRIUS Auxiliary Switch Block
SKU #:2231499
Part Number #:3RH29111AA01
Fast Delivery Est.Nov 9 - Nov 13
Ships Same Day
68 In Stock
Dimensions: 27.5 mm H x 23.6 mm W x 38.6 mm D
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$17.81 / EA
Typical price:$43.00 / EA
Siemens 3RH29111AA10 SIRIUS Auxiliary Switch Block
SKU #:2268131
Part Number #:3RH29111AA10
Dimensions: 27.5 mm H x 23.6 mm W x 38.6 mm D
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$17.81 / EA
Typical price:$43.00 / EA
Siemens 3RH29111BA01 SIRIUS Auxiliary Switch Block
SKU #:2222680
Part Number #:3RH29111BA01
Dimensions: 27.5 mm H x 23.6 mm W x 38.6 mm D
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$17.81 / EA
Typical price:$43.00 / EA
Siemens 3RH29111BA10 SIRIUS Auxiliary Switch Block
SKU #:2228178
Part Number #:3RH29111BA10
Dimensions: 27.5 mm H x 23.6 mm W x 38.6 mm D
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$17.81 / EA
Typical price:$43.00 / EA
Siemens 3RH29111DA02 SIRIUS Auxiliary Switch Block
SKU #:2293284
Part Number #:3RH29111DA02
Dimensions: 57.4 mm H x 10 mm W x 66 mm D
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$32.73 / EA
Typical price:$79.00 / EA
Siemens 3RH29111DA11 SIRIUS Auxiliary Switch Block
SKU #:2222492
Part Number #:3RH29111DA11
Dimensions: 57.4 mm H x 10 mm W x 66 mm D
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$32.73 / EA
Typical price:$79.00 / EA
Siemens 3RH29111DA20 SIRIUS Auxiliary Switch Block
SKU #:2222939
Part Number #:3RH29111DA20
Dimensions: 57.4 mm H x 10 mm W x 66 mm D
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$32.73 / EA
Typical price:$79.00 / EA
Siemens 3RH29111FA04 SIRIUS Auxiliary Switch Block
SKU #:2314841
Part Number #:3RH29111FA04
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$36.46 / EA
Typical price:$88.00 / EA
Siemens 3RH29111FA22 SIRIUS Auxiliary Switch Block
SKU #:2263529
Part Number #:3RH29111FA22
Fast Delivery Est.Nov 9 - Nov 13
Ships Same Day
40 In Stock
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$35.36 / EA
Typical price:$88.00 / EA
Siemens 3RH29111FA40 SIRIUS Auxiliary Switch Block
SKU #:2239343
Part Number #:3RH29111FA40
Fast Delivery Est.Nov 9 - Nov 13
Ships Same Day
Only 3 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 3RH29111FB11 SIRIUS Auxiliary Switch Block
SKU #:2312634
Part Number #:3RH29111FB11
Price:
$43.09 / EA
Typical price:$104.00 / EA
Siemens 3RH29111FB22 SIRIUS Auxiliary Switch Block
SKU #:2376932
Part Number #:3RH29111FB22
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$64.63 / EA
Typical price:$156.00 / EA
Siemens 3RH29111FC22 SIRIUS Auxiliary Switch Block
SKU #:2313519
Part Number #:3RH29111FC22
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$58.41 / EA
Typical price:$141.00 / EA
Siemens 3RH29111GA04 SIRIUS Auxiliary Switch Block
SKU #:2274543
Part Number #:3RH29111GA04
Price:
$36.46 / EA
Typical price:$88.00 / EA
Siemens 3RH29111GA13 SIRIUS Auxiliary Switch Block
SKU #:2313892
Part Number #:3RH29111GA13
Price:
$36.46 / EA
Typical price:$88.00 / EA
Siemens 3RH29111GA22 SIRIUS Auxiliary Switch Block
SKU #:2274915
Part Number #:3RH29111GA22
Fast Delivery Est.Nov 9 - Nov 13
Ships Same Day
Only 6 left in stock order soon
Price:
$36.46 / EA
Typical price:$88.00 / EA
Siemens 3RH29111GA31 SIRIUS Auxiliary Switch Block
SKU #:2274101
Part Number #:3RH29111GA31
Price:
$36.46 / EA
Typical price:$88.00 / EA
Siemens 3RH29111GA40 SIRIUS Auxiliary Switch Block
SKU #:2271551
Part Number #:3RH29111GA40
Price:
$36.46 / EA
Typical price:$88.00 / EA
Siemens 3RH29111HA01 SIRIUS Auxiliary Switch Block
SKU #:2228183
Part Number #:3RH29111HA01
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$17.19 / EA
Typical price:$41.50 / EA
Siemens 3RH29111HA02 SIRIUS Auxiliary Switch Block
SKU #:2275677
Part Number #:3RH29111HA02
Price:
$21.74 / EA
Typical price:$52.50 / EA
Siemens 3RH29111HA03 Auxiliary Switch Block
SKU #:2400749
Part Number #:3RH29111HA03
Dimensions: 36 mm W x 43.7 mm D x 37.5 mm H
Environmental Conditions: -55 to 80 deg C
Number of Contacts: 3NC
Price:
$29.83 / EA
Typical price:$72.00 / EA
Siemens 3RH29111HA10 SIRIUS Auxiliary Switch Block
SKU #:2284551
Part Number #:3RH29111HA10
Suitable For Use With: 3RH Contactor Relay, 3RT Contactor, Power Contactor
Price:
$17.19 / EA
Typical price:$41.50 / EA