Pole Contactor

What is an Electrical Contactor?

What exactly is an electrical contactor?
Can a three pole contactor be used in a single phase circuit?

A contactor is an electrical component for switching on and off the power by creating an open circuit.
There is a coil of fine copper wire surrounding a ferrous material (iron) plunger which. When a current is applied to the coil the resulting electromagnetic force pushes the plunger in or out, causing the contactors to open or close.
Depending on what voltage the coil of the contactor is you can use a three phase contactor on a single phase circuit.
Check that the voltage rating for the contacts and the coil as they may be different.

34003 New No Box Allen Bradley F 20323 Contactor Cross Bar Size 2 3 Pole
34003 New No Box Allen Bradley F 20323 Contactor Cross Bar Size 2 3 Pole
$45.89
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SIEMENS IEC CONTACTOR 3RT10331AK60 120VOLT 3 POLE 28 AMP NIB
SIEMENS IEC CONTACTOR 3RT10331AK60 120VOLT 3 POLE 28 AMP NIB
$80.00
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ITE A133E BROKEN3 POLE 100 AMP LIGHTING CONTACTOR 120 VOLT COIL SEE PICS
ITE A133E BROKEN3 POLE 100 AMP LIGHTING CONTACTOR 120 VOLT COIL SEE PICS
$99.00
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SQUARE D 8910 DPA43 V02 Y244 Contactor 3 POLE 40A 600VAC 8910 DPA43V02 208 240V
SQUARE D 8910 DPA43 V02 Y244 Contactor 3 POLE 40A 600VAC 8910 DPA43V02 208 240V
$29.99
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Honeywell R4214 R 1053 3 Pole Contactor 40 Amp
Honeywell R4214 R 1053 3 Pole Contactor 40 Amp
$29.99
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Furnas Siemens 42BF35AJ Definite Purpose Contactor 24V Coil 30 Amp 3 Pole
Furnas Siemens 42BF35AJ Definite Purpose Contactor 24V Coil 30 Amp 3 Pole
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Furnas L38 568 Siemens 42BF35AF 42BF35AFBBT 3 Pole Contactor 120V Coil
Furnas L38 568 Siemens 42BF35AF 42BF35AFBBT 3 Pole Contactor 120V Coil
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NEW P 8 7737 LENNOX Contactor PRODUCTS UNLIMITED 3100 30T808 25 A 3 Pole 120V
NEW P 8 7737 LENNOX Contactor PRODUCTS UNLIMITED 3100 30T808 25 A 3 Pole 120V
$25.00
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Sprecher Schuh CA7 60 00 600V 90A 50HP Three Pole Motor Control Switch Contactor
Sprecher Schuh CA7 60 00 600V 90A 50HP Three Pole Motor Control Switch Contactor
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Siemens 45EG20AF Contactor 30Amp 2Pole 120VAC NEW
Siemens 45EG20AF Contactor 30Amp 2Pole 120VAC NEW
$28.80
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Siemens Sirius 3RT1033 1B0 Coil Contactor Starter 3 Pole +3RH1921 1FA40 Block
Siemens Sirius 3RT1033 1B0 Coil Contactor Starter 3 Pole +3RH1921 1FA40 Block
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Fuji Electric Co SC 03 G 24vdc Coil Contactor 3 Pole 600v 20a 5hp Starter
Fuji Electric Co SC 03 G 24vdc Coil Contactor 3 Pole 600v 20a 5hp Starter
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Grainger Dayton 6GNZ6 Contactor 1 pole 40 amp 110 120 VAC coil W 60
Grainger Dayton 6GNZ6 Contactor 1 pole 40 amp 110 120 VAC coil W 60
$12.89
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HONEYWELL R8234B 1030 CONTACTOR LESS COIL 60 AMP 3 POLE NEW
HONEYWELL R8234B 1030 CONTACTOR LESS COIL 60 AMP 3 POLE NEW
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Allen Bradley 3 Pole Contactor 100 C1210 Ser A  Overload 193 ED1CB Ser B
Allen Bradley 3 Pole Contactor 100 C1210 Ser A Overload 193 ED1CB Ser B
$95.00
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Siemens 42CF35A3P Furnas Definite Purpose Class 42 40A 3 Pole Terminal Contactor
Siemens 42CF35A3P Furnas Definite Purpose Class 42 40A 3 Pole Terminal Contactor
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RDP8 20100 WARD LEONARD DP CONTACTOR 535 AMPS 600VDC 2POLE
RDP8 20100 WARD LEONARD DP CONTACTOR 535 AMPS 600VDC 2POLE
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RDP8 20100 WARD LEONARD DP CONTACTOR 535 AMPS 600VDC 2POLE 500 amp
RDP8 20100 WARD LEONARD DP CONTACTOR 535 AMPS 600VDC 2POLE 500 amp
$1,249.00
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Honeywell R8212 R 1007 3 Pole Contactor 24V Coil
Honeywell R8212 R 1007 3 Pole Contactor 24V Coil
$23.70
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Square D 8910DPA33V02 3 Pole Contactor NIB
Square D 8910DPA33V02 3 Pole Contactor NIB
$54.95
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A B Allen Bradley 100 A18NZ3 3 Pole Contactor 24VDC Coil 18 Amp w Contact Block
A B Allen Bradley 100 A18NZ3 3 Pole Contactor 24VDC Coil 18 Amp w Contact Block
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1 NEMA SIZE 5 CONTACTOR 3POLE 600 VOLT very clean
1 NEMA SIZE 5 CONTACTOR 3POLE 600 VOLT very clean
$89.00
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1605212 Contact Kit Size 1 Type N 3 Pole Starter Contactor Set Incomplete
1605212 Contact Kit Size 1 Type N 3 Pole Starter Contactor Set Incomplete
$34.95
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FURNAS ELECTRIC 42BF35AJACW X13070304200 CONTACTOR 30A 240V 3 POLE UNIT
FURNAS ELECTRIC 42BF35AJACW X13070304200 CONTACTOR 30A 240V 3 POLE UNIT
$40.00
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NEW 8903LO20V03 SQUARE D Open E H Lighting Contactor 2 Pole 600 VAC 20 Amp
NEW 8903LO20V03 SQUARE D Open E H Lighting Contactor 2 Pole 600 VAC 20 Amp
$150.00
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Allen Bradley 100 C16D 10 Contactor 24Vdc Coil 32 Amp 3 Pole 1 NO Contact
Allen Bradley 100 C16D 10 Contactor 24Vdc Coil 32 Amp 3 Pole 1 NO Contact
$22.50
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Potter Brumfield 24VDC P25P42D22P1 24 Contactor Relay 3 Pole 30A 133 OHMs New
Potter Brumfield 24VDC P25P42D22P1 24 Contactor Relay 3 Pole 30A 133 OHMs New
$24.88
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Furnas Definite Purpose Contactor 4 pole 24 volt
Furnas Definite Purpose Contactor 4 pole 24 volt
$35.00
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Furnas Definite Purpose Contactor 1 pole 120 volt coil
Furnas Definite Purpose Contactor 1 pole 120 volt coil
$22.00
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OK25FC ABB 4 Pole 25 Amp 300 Volt Contactor
OK25FC ABB 4 Pole 25 Amp 300 Volt Contactor
$105.00
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Eaton Cutler Hammer ECL04C4A8A 120 volt 8 pole lighting contactor
Eaton Cutler Hammer ECL04C4A8A 120 volt 8 pole lighting contactor
$800.00
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SQUARE D CL 8910 TY DP 32V09 Y240 SER A USE 2 POLES ABOVE 480V CONTACTOR P 2 5
SQUARE D CL 8910 TY DP 32V09 Y240 SER A USE 2 POLES ABOVE 480V CONTACTOR P 2 5
$32.99
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GOOD USED TELEMECANIQUE CONTACTOR LC1 D1201 LC1D1201 3POLE 12A COIL 120V 60HZ
GOOD USED TELEMECANIQUE CONTACTOR LC1 D1201 LC1D1201 3POLE 12A COIL 120V 60HZ
$19.95
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ALLEN BRADLEY 702BOD92 3 POLE 30 AMP CONTACTOR
ALLEN BRADLEY 702BOD92 3 POLE 30 AMP CONTACTOR
$14.00
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ALLEN BRADLEY 4 POLE CONTACTOR 24VDC COIL
ALLEN BRADLEY 4 POLE CONTACTOR 24VDC COIL
$14.00
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Eaton ECC03C4A2A 2 Pole Lighting Contactor in Nema 4X Steel Enclosure STR2247
Eaton ECC03C4A2A 2 Pole Lighting Contactor in Nema 4X Steel Enclosure STR2247
$495.00
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ALLEN BRADLEY 4 POLE CONTACTOR 24 VDC COIL 10 AMPS
ALLEN BRADLEY 4 POLE CONTACTOR 24 VDC COIL 10 AMPS
$9.00
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ALLEN BRADLEY 100 A18NZ 3 CONTACTOR 4 POLE 120V COIL DIN RAIL MOUNT
ALLEN BRADLEY 100 A18NZ 3 CONTACTOR 4 POLE 120V COIL DIN RAIL MOUNT
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Siemens Furnas 3RT1036 3AK60 Contactor 3 pole
Siemens Furnas 3RT1036 3AK60 Contactor 3 pole
$159.00
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CJX2 09 660V 20A 32A 3 Poles 3P NC DIN Rail AC Contactor 220V Coil
CJX2 09 660V 20A 32A 3 Poles 3P NC DIN Rail AC Contactor 220V Coil
$20.75
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NEW ALLEN BRADLEY 702L C0D92 SERIES K 60 AMP 2 POLE 600 VAC CONTACTOR
NEW ALLEN BRADLEY 702L C0D92 SERIES K 60 AMP 2 POLE 600 VAC CONTACTOR
$249.88
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SIEMENS 3RT1035 1AF00 3 POLE CONTACTOR
SIEMENS 3RT1035 1AF00 3 POLE CONTACTOR
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Square D Size 5 Contactor Class 8502 Type SGO2S1 480 volt coil 600 v 3 pole
Square D Size 5 Contactor Class 8502 Type SGO2S1 480 volt coil 600 v 3 pole
$500.00
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Square D Lighting Contactor 30 Amps 3 Pole
Square D Lighting Contactor 30 Amps 3 Pole
$80.00
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JZC4 40 220 240VAC 50 60Hz Coil 20A 3P Three Pole 4NO AC Contactor
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Eaton C25BNB240A 45GG20AF 40A 120V 2 Pole Contactor New
Eaton C25BNB240A 45GG20AF 40A 120V 2 Pole Contactor New
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Telemecanique LC1D80004 Contactor 125 Amps 600 Volts 3 Phase 4 Poles New
Telemecanique LC1D80004 Contactor 125 Amps 600 Volts 3 Phase 4 Poles New
$109.99
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TELEMECANIQUE LP1 D1810 CONTACTOR 18AMP 3POLE DC
TELEMECANIQUE LP1 D1810 CONTACTOR 18AMP 3POLE DC
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SIEMENS 20AMP CONTACTOR 45CG20AF 120VCOIL 2POLE
SIEMENS 20AMP CONTACTOR 45CG20AF 120VCOIL 2POLE
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ASEA EH50P 110 A 600V  2 Pole Contactor 120V Coil Used
ASEA EH50P 110 A 600V 2 Pole Contactor 120V Coil Used
$175.00
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NIB Cutler Hammer ECL03B1T3A Lighting Contactor 20 Amp 24 Volt 3 Pole NEMA 1
NIB Cutler Hammer ECL03B1T3A Lighting Contactor 20 Amp 24 Volt 3 Pole NEMA 1
$299.99
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NEW Cutler Hammer 25FNF350T 24 Volt 3 Pole 50 Ampmp Contactor
NEW Cutler Hammer 25FNF350T 24 Volt 3 Pole 50 Ampmp Contactor
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SQUARE D LIGHTING CONTACTOR CAT8903SMO10 120VCOIL 30A 2POLE 3PH
SQUARE D LIGHTING CONTACTOR CAT8903SMO10 120VCOIL 30A 2POLE 3PH
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SQUARE D LIGHTING CONTACTOR CAT8903SPO13 120VCOIL 60A 3POLE 3PH
SQUARE D LIGHTING CONTACTOR CAT8903SPO13 120VCOIL 60A 3POLE 3PH
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SIEMENS 3TF 3TF46 AC MOTOR CONTACTOR 3 Pole W 3UA58 00 2C 60 DAY WARRANTY
SIEMENS 3TF 3TF46 AC MOTOR CONTACTOR 3 Pole W 3UA58 00 2C 60 DAY WARRANTY
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Siemens Allis CXL003 Contactor 3 Pole 18A 600VAC NEMA Size 0 Mod E
Siemens Allis CXL003 Contactor 3 Pole 18A 600VAC NEMA Size 0 Mod E
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ASCO 920 Remote Control Switch Contactor 926 3 Pole 60 Amp 600V 600CY
ASCO 920 Remote Control Switch Contactor 926 3 Pole 60 Amp 600V 600CY
$300.00
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NEW General Electric CR463LC0ACA 11 Pole 11NO 24V Lighting Contactor CR460
NEW General Electric CR463LC0ACA 11 Pole 11NO 24V Lighting Contactor CR460
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NIB Siemens Furnas 42BF25AF 4 Pole 120V 30 Amp Definite Purpose Contactor
NIB Siemens Furnas 42BF25AF 4 Pole 120V 30 Amp Definite Purpose Contactor
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Cutler Hammer C10GN2 Double Pole Nema Size 5 Contactor W 120 Volt Coil
Cutler Hammer C10GN2 Double Pole Nema Size 5 Contactor W 120 Volt Coil
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ARROW HART Contactor 208 240V 4 Pole 40 50 Amp ACC440U10
ARROW HART Contactor 208 240V 4 Pole 40 50 Amp ACC440U10
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Cutler Hammer C25DND325 Contactor 25A 120V 3 Pole Ser C1
Cutler Hammer C25DND325 Contactor 25A 120V 3 Pole Ser C1
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GE General Electric Machine Tool Relay CR2810A14AC 4 Pole 600V 10A Contactor
GE General Electric Machine Tool Relay CR2810A14AC 4 Pole 600V 10A Contactor
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ABB EH 450 600V 60947 4 1 3 POLE CONTACTOR
ABB EH 450 600V 60947 4 1 3 POLE CONTACTOR
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NEW General Electric CR463LC0ADA 11 Pole 11NO 28V Lighting Contactor CR460
NEW General Electric CR463LC0ADA 11 Pole 11NO 28V Lighting Contactor CR460
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NEW IN BOX SIEMENS 3RT10261AC20 CONTACTOR 3 POLE
NEW IN BOX SIEMENS 3RT10261AC20 CONTACTOR 3 POLE
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GE General Electric CR2810A14DE 6 Pole 600V 10A Contactor
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Motor starter Contactor w overload Allen Bradley 4 pole 100 A09ND3 Series B
Motor starter Contactor w overload Allen Bradley 4 pole 100 A09ND3 Series B
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Motor starter Contactor Allen Bradley 4 pole 100 A09ND3 Series C
Motor starter Contactor Allen Bradley 4 pole 100 A09ND3 Series C
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GE General Electric CR2810A14BL 8 Pole 600V 10A Contactor
GE General Electric CR2810A14BL 8 Pole 600V 10A Contactor
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NEW General Electric CR463LC0AJA 11 Pole 11NO 120V Lighting Contactor CR460
NEW General Electric CR463LC0AJA 11 Pole 11NO 120V Lighting Contactor CR460
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NEW  AEG Dual Contactor Cat E NR 910 301  600V  3Ph  3 Pole  ZM 307
NEW AEG Dual Contactor Cat E NR 910 301 600V 3Ph 3 Pole ZM 307
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CUTLER HAMMER CE15TN3 A1 420A 600V CONTACTOR 3 POLE 120V COIL
CUTLER HAMMER CE15TN3 A1 420A 600V CONTACTOR 3 POLE 120V COIL
$950.00
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NEW General Electric CR463LC0ALA 11 Pole 11NO 208V Lighting Contactor CR460
NEW General Electric CR463LC0ALA 11 Pole 11NO 208V Lighting Contactor CR460
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Crouse Hinds Arrow Hart ACC630U20 75 amp 3 Pole Contactor Type E
Crouse Hinds Arrow Hart ACC630U20 75 amp 3 Pole Contactor Type E
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ALLEN BRADLEY SIZE 5 270A 2 POLE 110 120V COIL WELDING CONTACTOR 100W B300ND2
ALLEN BRADLEY SIZE 5 270A 2 POLE 110 120V COIL WELDING CONTACTOR 100W B300ND2
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