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.

35mm DIN Rail Mounted 3P 3 Poles 24V Coil 12A AC Contactor CJX1 12
35mm DIN Rail Mounted 3P 3 Poles 24V Coil 12A AC Contactor CJX1 12
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35mm DIN Rail Mounted 3P 3 Poles 380V Coil 9A AC Contactor CJX1 9
35mm DIN Rail Mounted 3P 3 Poles 380V Coil 9A AC Contactor CJX1 9
$26.05
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CUTLER HAMMER C25DNF340T DEFINITE PURPOSE CONTACTOR 24V AC 50 60HZ 3 POLES
CUTLER HAMMER C25DNF340T DEFINITE PURPOSE CONTACTOR 24V AC 50 60HZ 3 POLES
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CJX2 5011 AC Contactor 80 Amp 3 Phase 3 Pole NO 220V 50 60Hz Coil
CJX2 5011 AC Contactor 80 Amp 3 Phase 3 Pole NO 220V 50 60Hz Coil
$49.19
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SQUARE D DEFINITE PURPOSE CONTACTOR 3 POLE 8910DPA33V14 New in Box
SQUARE D DEFINITE PURPOSE CONTACTOR 3 POLE 8910DPA33V14 New in Box
$20.00
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GENERAL ELECTRIC CL04D301M Three pole contactors 24VDC coil
GENERAL ELECTRIC CL04D301M Three pole contactors 24VDC coil
$15.00
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NEW GE ENCLOSED 8 POLE LIGHTING CONTACTOR 463M80CJA10A0
NEW GE ENCLOSED 8 POLE LIGHTING CONTACTOR 463M80CJA10A0
$499.99
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1 pc Siemens Furnas DP Contactor 42BF35AF 30 Amp 600V 3 Pole
1 pc Siemens Furnas DP Contactor 42BF35AF 30 Amp 600V 3 Pole
$19.99
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36V 50 60Hz Coil 3 Poles DIN Rail Mounting CJX2 8011 Type 1NO+1NC AC Contactor
36V 50 60Hz Coil 3 Poles DIN Rail Mounting CJX2 8011 Type 1NO+1NC AC Contactor
$64.37
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Totaline P282 0323 Contactor 2Pole 30Amp 208 240V  NEW
Totaline P282 0323 Contactor 2Pole 30Amp 208 240V NEW
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Arrow Hart C302U10 Magnetic Contactor 30 40Amp 50 60Hz 2Pole  NEW
Arrow Hart C302U10 Magnetic Contactor 30 40Amp 50 60Hz 2Pole NEW
$49.99
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LC1D32Q7V 32 Amp 3 Phase AC Contactor 3 Pole 380 Volts 50 60Hz Coil
LC1D32Q7V 32 Amp 3 Phase AC Contactor 3 Pole 380 Volts 50 60Hz Coil
$20.29
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Eaton XTMC9A10RD 12VDC 3Pole 20AMP Contactor DILEM 10 G QTY 1
Eaton XTMC9A10RD 12VDC 3Pole 20AMP Contactor DILEM 10 G QTY 1
$21.95
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NEW SQUARE D 8903 SPG1 8903SPG1 60 AMP 3 POLE W AUX CONTACT LIGHTING CONTACTOR
NEW SQUARE D 8903 SPG1 8903SPG1 60 AMP 3 POLE W AUX CONTACT LIGHTING CONTACTOR
$199.99
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Square D 3 Pole Lighting Contactor Class 8903 Type MG 2 30 amp ID7020 3 1
Square D 3 Pole Lighting Contactor Class 8903 Type MG 2 30 amp ID7020 3 1
$50.00
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CR353AB2BH1 GE Contactor Definite Purpose 25 Amp 2 Pole New In Box
CR353AB2BH1 GE Contactor Definite Purpose 25 Amp 2 Pole New In Box
$60.00
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New Allen Bradley 702 AOD 92 Contactor 20AMP 3 Pole
New Allen Bradley 702 AOD 92 Contactor 20AMP 3 Pole
$155.00
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Square D 4 Pole Lighting Contactor 8903LG40V02 NIB
Square D 4 Pole Lighting Contactor 8903LG40V02 NIB
$225.00
Time Remaining: 9h 54m

Allen Bradley 100 A60N3 Ser C CONTACTOR 60AMP 3POLE
Allen Bradley 100 A60N3 Ser C CONTACTOR 60AMP 3POLE
$127.99
Time Remaining: 10h 4m
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8536SBO2S Square D SQD Nema Size 0 Contactor 120V Coil 3 Pole 600V
8536SBO2S Square D SQD Nema Size 0 Contactor 120V Coil 3 Pole 600V
$119.99
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50 60Hz Coil Frequency 3 Poles 2NO 2NC Motor Control AC Contactor 660V 315A
50 60Hz Coil Frequency 3 Poles 2NO 2NC Motor Control AC Contactor 660V 315A
$27.21
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45AF35AG Furnas 3 Pole 25A Definite Purpose Contactor 24VAC Coil
45AF35AG Furnas 3 Pole 25A Definite Purpose Contactor 24VAC Coil
$20.00
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45CA20AJ335R Furnas 2 Pole 20A Definite Purpose Contactor 24VAC Coil
45CA20AJ335R Furnas 2 Pole 20A Definite Purpose Contactor 24VAC Coil
$15.00
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GENERAL ELECTRIC 24VDC DUAL COIL 100A 2 POLE CONTACTOR 254C4B
GENERAL ELECTRIC 24VDC DUAL COIL 100A 2 POLE CONTACTOR 254C4B
$99.99
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MDI 235NO 120A 235NO120A Mercury Contactor 35 Amp A 2 Pole 35A 600Volt
MDI 235NO 120A 235NO120A Mercury Contactor 35 Amp A 2 Pole 35A 600Volt
$20.00
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C10DNE2B Cutler Hammer NIB 2 Pole Contactor 240VAC Coil
C10DNE2B Cutler Hammer NIB 2 Pole Contactor 240VAC Coil
$125.00
Time Remaining: 10h 55m
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Cutler Hammer C30DN3 Ac Lightning Contactor 60A 120V 3 Pole Unit
Cutler Hammer C30DN3 Ac Lightning Contactor 60A 120V 3 Pole Unit
$49.99
Time Remaining: 10h 59m
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New Square D Telemecanique LC1D40AT7 3 pole 40 amp 440V Contactor
New Square D Telemecanique LC1D40AT7 3 pole 40 amp 440V Contactor
$115.00
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ABB AE26 30 Contactor 24VDC COIL 40 AMP 3 POLE
ABB AE26 30 Contactor 24VDC COIL 40 AMP 3 POLE
$15.00
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SIEMENS DEFINITE PURPOSE CONTACTOR 42CF35AJRA 3 POLE 120 VOLT NIB
SIEMENS DEFINITE PURPOSE CONTACTOR 42CF35AJRA 3 POLE 120 VOLT NIB
$37.99
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Contactor Normally Open 60A 4 Pole 120V coil 40 Amp Lighting or Heater 40A
Contactor Normally Open 60A 4 Pole 120V coil 40 Amp Lighting or Heater 40A
$69.99
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CUTLER HAMMER EATON ECL03C1A9A LIGHTING CONTACTOR 9 POLE
CUTLER HAMMER EATON ECL03C1A9A LIGHTING CONTACTOR 9 POLE
$295.00
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POTTER  BRUMFIELD P30P42D12P1 24 CONTACTOR 3 POLE 600V 40A USED
POTTER BRUMFIELD P30P42D12P1 24 CONTACTOR 3 POLE 600V 40A USED
$20.00
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CJX2 0910 Motor Control AC Contactor AC 3 4KW 9A 3P Three Pole 220V Coil
CJX2 0910 Motor Control AC Contactor AC 3 4KW 9A 3P Three Pole 220V Coil
$21.09
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WESTINGHOUSE CONTACTOR STARTER SIZE SZ 3 5P 5 POLE NR 350 1623183
WESTINGHOUSE CONTACTOR STARTER SIZE SZ 3 5P 5 POLE NR 350 1623183
$325.00
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SQUARE D DP22V02 2 POLE 120V PURPOSE CONTACTOR
SQUARE D DP22V02 2 POLE 120V PURPOSE CONTACTOR
$10.00
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Westinghouse A200MICAC Contactor Style 765A840G01 110V 27A 3 Pole Unit
Westinghouse A200MICAC Contactor Style 765A840G01 110V 27A 3 Pole Unit
$34.99
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COPELAND 912 3040 01 DEFINITE PURPOSE CONTACTOR 3 POLE 120VAC COIL 40 AMP
COPELAND 912 3040 01 DEFINITE PURPOSE CONTACTOR 3 POLE 120VAC COIL 40 AMP
$50.00
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WESTINGHOUSE CONTACTOR STARTER SIZE SZ 3 3P 3 POLE NR 330 1623159
WESTINGHOUSE CONTACTOR STARTER SIZE SZ 3 3P 3 POLE NR 330 1623159
$170.00
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NEW IN BOX ALLEN BRADLEY SIZE 3 CONTACTOR 4 POLE 500 DOD940 SERIES A
NEW IN BOX ALLEN BRADLEY SIZE 3 CONTACTOR 4 POLE 500 DOD940 SERIES A
$250.00
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220V Coil Motor Controler AC Contactor 3 Pole 2NO+2NC 660V 20A CJX19 22
220V Coil Motor Controler AC Contactor 3 Pole 2NO+2NC 660V 20A CJX19 22
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New Cerus B Series Contactor MRC 9 120VAC 9 amp 120 Volt 3 Pole with Aux
New Cerus B Series Contactor MRC 9 120VAC 9 amp 120 Volt 3 Pole with Aux
$27.00
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Cutler Hammer XTCE012B10A Contactor 3Pole 12A 110 120V 50 60Hz  NEW
Cutler Hammer XTCE012B10A Contactor 3Pole 12A 110 120V 50 60Hz NEW
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Eaton XTCE018C10A Contactor 1NO 3 Pole 120VAC 18A  NEW
Eaton XTCE018C10A Contactor 1NO 3 Pole 120VAC 18A NEW
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NEW FURNAS MAGNETIC CONTACTOR 3 POLE 42CE35AF106 NOS
NEW FURNAS MAGNETIC CONTACTOR 3 POLE 42CE35AF106 NOS
$99.00
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MOELLER 250VAC 05A 3 POLE CONTACTOR W AUX CONTACT DIL EM 10 G W 22 DIL EM
MOELLER 250VAC 05A 3 POLE CONTACTOR W AUX CONTACT DIL EM 10 G W 22 DIL EM
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Square D 8502 PD210E Contactor 4 Pole 24VAC 50 60Hz  WOW
Square D 8502 PD210E Contactor 4 Pole 24VAC 50 60Hz WOW
$19.99
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New Cerus B Series Contactor MRC 9 208VAC 9 amp 208 Volt 3 Pole with Aux
New Cerus B Series Contactor MRC 9 208VAC 9 amp 208 Volt 3 Pole with Aux
$27.00
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General Electric GE DC Contactor 2 pole 50 amp
General Electric GE DC Contactor 2 pole 50 amp
$790.00
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New Cerus B Series Contactor MRC 9 240VAC 9 amp 240 Volt 3 Pole with Aux
New Cerus B Series Contactor MRC 9 240VAC 9 amp 240 Volt 3 Pole with Aux
$27.00
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FUJI ELECTRIC SH 4G 24VDC CONTACTOR 4 POLES 4NO 5A 120VAC USED
FUJI ELECTRIC SH 4G 24VDC CONTACTOR 4 POLES 4NO 5A 120VAC USED
$79.95
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SQUARE D 2 POLE MG 10 LIGHTING CONTACTOR STR1050
SQUARE D 2 POLE MG 10 LIGHTING CONTACTOR STR1050
$75.00
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Siemens 3TB4817 0G 3pole breaking 600VAC sz 3 contactor w 220V
Siemens 3TB4817 0G 3pole breaking 600VAC sz 3 contactor w 220V
$109.99
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Eaton 3 Pole Cutler Hammer Define Purpose Contactor C25DNY61
Eaton 3 Pole Cutler Hammer Define Purpose Contactor C25DNY61
$19.99
Time Remaining: 14h 2m

8502 SAO12V02 Square D Magnetic NEMA Rated Contactor 3 Pole Coil 110 120V New
8502 SAO12V02 Square D Magnetic NEMA Rated Contactor 3 Pole Coil 110 120V New
$130.00
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New Cerus B Series Contactor MRC 9 24VAC 9 amp 24 Volt 3 Pole with Aux
New Cerus B Series Contactor MRC 9 24VAC 9 amp 24 Volt 3 Pole with Aux
$27.00
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New Cerus B Series Contactor MRC 9 480VAC 9 amp 480 Volt 3 Pole with Aux
New Cerus B Series Contactor MRC 9 480VAC 9 amp 480 Volt 3 Pole with Aux
$27.00
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General Electric CR460XP32 30a Lighting Contactor Power Pole Kit
General Electric CR460XP32 30a Lighting Contactor Power Pole Kit
$18.99
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Siemens 3TB42 17 OB Contactor 225 Amp 3 Pole 24VDC
Siemens 3TB42 17 OB Contactor 225 Amp 3 Pole 24VDC
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Lot of 6 Allen Bradley 100 A12ND3 Series A contactor 12 amp 3 pole 100A12ND3
Lot of 6 Allen Bradley 100 A12ND3 Series A contactor 12 amp 3 pole 100A12ND3
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Allen Bradley 100 C09D10 Ser A 3 Pole Contactor New
Allen Bradley 100 C09D10 Ser A 3 Pole Contactor New
$46.74
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ABB 3 POLE CONTACTOR 24 V AE75           YG 92
ABB 3 POLE CONTACTOR 24 V AE75 YG 92
$85.50
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New Cerus B Series Contactor MRC 12 120VAC 12 amp 120 Volt 3 Pole with Aux
New Cerus B Series Contactor MRC 12 120VAC 12 amp 120 Volt 3 Pole with Aux
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New Cerus B Series Contactor MRC 12 24VAC 12 amp 24 Volt 3 Pole with Aux
New Cerus B Series Contactor MRC 12 24VAC 12 amp 24 Volt 3 Pole with Aux
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Cutler Hammer CE15DN3AB Contactor 3 Pole 18A 600V  WOW
Cutler Hammer CE15DN3AB Contactor 3 Pole 18A 600V WOW
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Siemens Contactor 24VDC 3Pole 80A 3TB4617 0B  NEW
Siemens Contactor 24VDC 3Pole 80A 3TB4617 0B NEW
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New Cerus B Series Contactor MRC 12 240VAC 12 amp 240 Volt 3 Pole with Aux
New Cerus B Series Contactor MRC 12 240VAC 12 amp 240 Volt 3 Pole with Aux
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New Cerus B Series Contactor MRC 12 208VAC 12 amp 208 Volt 3 Pole with Aux
New Cerus B Series Contactor MRC 12 208VAC 12 amp 208 Volt 3 Pole with Aux
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Cutler Hammer AE16ANS0 7 Amp 600 Volt 3 Pole Contactor
Cutler Hammer AE16ANS0 7 Amp 600 Volt 3 Pole Contactor
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Cutler Hammer C80EH141 Contactor 1 Pole Nema 3 600VDC  WOW
Cutler Hammer C80EH141 Contactor 1 Pole Nema 3 600VDC WOW
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SQUARE D 24VAC COIL 2 POLE DEFINITE PURPOSE CONTACTOR 8910DPA62V14 MADE IN USA
SQUARE D 24VAC COIL 2 POLE DEFINITE PURPOSE CONTACTOR 8910DPA62V14 MADE IN USA
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New Cerus B Series Contactor MRC 12 277VAC 12 amp 277 Volt 3 Pole with Aux
New Cerus B Series Contactor MRC 12 277VAC 12 amp 277 Volt 3 Pole with Aux
$30.00
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Klockner Moeller 4 Pole Contactor Starter DIL R 53D 120 VAC Coil Used
Klockner Moeller 4 Pole Contactor Starter DIL R 53D 120 VAC Coil Used
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New Cerus B Series Contactor MRC 12 480VAC 12 amp 480 Volt 3 Pole with Aux
New Cerus B Series Contactor MRC 12 480VAC 12 amp 480 Volt 3 Pole with Aux
$30.00
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Klockner Moeller 4 Pole Contactor Starter DIL R 53D With Aux Contacts
Klockner Moeller 4 Pole Contactor Starter DIL R 53D With Aux Contacts
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Siemens 3 Pole Contactor Starter 3TF2031 OAK6 With Aux Contacts 120 VAC Coil
Siemens 3 Pole Contactor Starter 3TF2031 OAK6 With Aux Contacts 120 VAC Coil
$25.00
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