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.

HONEYWELL R4212G 1323 30 AMP 3 POLE CONTACTOR NIB
HONEYWELL R4212G 1323 30 AMP 3 POLE CONTACTOR NIB
$15.99
Time Remaining: 1h 11m
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Eaton C25CNB130T Definite Purpose contactor 30A 600V 1 pole 24VAC Brand new
Eaton C25CNB130T Definite Purpose contactor 30A 600V 1 pole 24VAC Brand new
$12.00
Time Remaining: 1h 29m
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GE Definite Purpose Contactor 40 AMP 2 POLES CR353AD2BA1
GE Definite Purpose Contactor 40 AMP 2 POLES CR353AD2BA1
$50.00
Time Remaining: 1h 40m
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Joslyn Clark DP5C503 50amp Contactor 1pole 3Pole
Joslyn Clark DP5C503 50amp Contactor 1pole 3Pole
$19.99
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GENERAL ELECTRIC CR161FBG520A1AH DPCONTACTOR 30AMP 3POLE 110 120V 50 60HZ NIB
GENERAL ELECTRIC CR161FBG520A1AH DPCONTACTOR 30AMP 3POLE 110 120V 50 60HZ NIB
$35.40
Time Remaining: 1h 49m
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AC Contactor CJX2 2501 1NC 3 Pole Coil 25A Motor Starter 690V 40A
AC Contactor CJX2 2501 1NC 3 Pole Coil 25A Motor Starter 690V 40A
$19.81
Time Remaining: 2h 50m
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CJX1 12A Motor Control 24V 50Hz 29V 60Hz Coil 3 Pole 2NO 2NC AC Contactor
CJX1 12A Motor Control 24V 50Hz 29V 60Hz Coil 3 Pole 2NO 2NC AC Contactor
$23.73
Time Remaining: 3h 20m
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Siemens Sirius 3RT1024 1B0 Coil Contactor Starter 3 Pole +3RH1921 1FA40 Block
Siemens Sirius 3RT1024 1B0 Coil Contactor Starter 3 Pole +3RH1921 1FA40 Block
$9.99
Time Remaining: 3h 54m
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1PCS CJX2 1810 3 Pole + NO AC Contactor 32 Amp 660V Contact Coil 220V 50 60Hz
1PCS CJX2 1810 3 Pole + NO AC Contactor 32 Amp 660V Contact Coil 220V 50 60Hz
$19.39
Time Remaining: 3h 55m
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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
$11.99
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AC 690V 20A Contactor Motor Control Starter 3 Phase Pole Relay Black CJX2 1210
AC 690V 20A Contactor Motor Control Starter 3 Phase Pole Relay Black CJX2 1210
$12.20
Time Remaining: 4h 32m
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702 BOD93 Allen Bradley 4 Pole Size 1 Contactor 120V Coil
702 BOD93 Allen Bradley 4 Pole Size 1 Contactor 120V Coil
$35.00
Time Remaining: 5h 24m
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ASEA EH6 40E 4P POLE AC 110 120V AC 10A AMP CONTACTOR B333809
ASEA EH6 40E 4P POLE AC 110 120V AC 10A AMP CONTACTOR B333809
$10.46
Time Remaining: 6h 22m
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AEG LS375K11 POWER CONTACTOR 3 POLE 375KW 230VAC 50HzLS375 COIL 910 304 520
AEG LS375K11 POWER CONTACTOR 3 POLE 375KW 230VAC 50HzLS375 COIL 910 304 520
$1,150.00
Time Remaining: 7h 30m
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Allen Bradley 100 A09ND3 9 Amp Contactor 3 pole
Allen Bradley 100 A09ND3 9 Amp Contactor 3 pole
$85.00
Time Remaining: 8h 31m
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ABB B40C 1 3P POLE AUXILIARY 1NO 1NC 120V AC 40HP 65A AMP AC CONTACTOR B404115
ABB B40C 1 3P POLE AUXILIARY 1NO 1NC 120V AC 40HP 65A AMP AC CONTACTOR B404115
$82.20
Time Remaining: 8h 51m
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JOSLYN CLARK DP3C404 120 CONTACTOR 40 AMP 4 POLE
JOSLYN CLARK DP3C404 120 CONTACTOR 40 AMP 4 POLE
$63.00
Time Remaining: 8h 57m
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ARROW HART ACC 330 UM 10 3 POLE Magnetic Contactor
ARROW HART ACC 330 UM 10 3 POLE Magnetic Contactor
$19.00
Time Remaining: 9h 1m
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Dayton 6GNX1 Definite Purpose Motor Contactor 2 Pole 110 120V Coil FLM 277 50A
Dayton 6GNX1 Definite Purpose Motor Contactor 2 Pole 110 120V Coil FLM 277 50A
$44.99
Time Remaining: 12h 38m
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Dayton 6GNP8 Definite Purpose Contactor 2 Pole 208 220 240VAC Coil
Dayton 6GNP8 Definite Purpose Contactor 2 Pole 208 220 240VAC Coil
$14.99
Time Remaining: 12h 39m
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Ward Leonard Contactor Contact Kit 5M49 1Pole
Ward Leonard Contactor Contact Kit 5M49 1Pole
$59.99
Time Remaining: 12h 46m
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Allen Bradley 702AOA92 Ser K CONTACTOR 3POLE 600VAC SIZE 0 18A 220 240V
Allen Bradley 702AOA92 Ser K CONTACTOR 3POLE 600VAC SIZE 0 18A 220 240V
$99.99
Time Remaining: 13h 22m
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Allen Bradley 702AOD91 Ser K CONTACTOR 18AMP 1POLE 120V 60HZ 110V 50HZ NEMA0
Allen Bradley 702AOD91 Ser K CONTACTOR 18AMP 1POLE 120V 60HZ 110V 50HZ NEMA0
$89.99
Time Remaining: 13h 24m
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Allen Bradley 702AOD93 Ser K CONTACTOR 3POLE 120V 18A 50 60Hz
Allen Bradley 702AOD93 Ser K CONTACTOR 3POLE 120V 18A 50 60Hz
$39.99
Time Remaining: 13h 27m
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Furnas 40FF15BAD4 70 90 Amp 2 Pole Contactor 120V Coil NEW
Furnas 40FF15BAD4 70 90 Amp 2 Pole Contactor 120V Coil NEW
$195.00
Time Remaining: 13h 34m
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SIEMENS MAGNETIC CONTACTOR 75 AMP 600V 3 POLE SIZE 3 120V COIL 3TF48 3UA58 00 2V
SIEMENS MAGNETIC CONTACTOR 75 AMP 600V 3 POLE SIZE 3 120V COIL 3TF48 3UA58 00 2V
$180.00
Time Remaining: 13h 46m
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Moeller Motor starter w Contactor PKZM0 10 10Amp 3 pole
Moeller Motor starter w Contactor PKZM0 10 10Amp 3 pole
$75.00
Time Remaining: 14h 8m
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OEM Allen Bradley 100 C30B10 Starter Contactor 440 480V 3 Pole + 1 Aux NEW
OEM Allen Bradley 100 C30B10 Starter Contactor 440 480V 3 Pole + 1 Aux NEW
$105.00
Time Remaining: 14h 20m
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IEC Contactor 24VAC 18 Amps NEMA 1 Nonreversing 3 Pole Start Stop Pushbutton 1NO
IEC Contactor 24VAC 18 Amps NEMA 1 Nonreversing 3 Pole Start Stop Pushbutton 1NO
$60.00
Time Remaining: 14h 41m
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IEC Contactor 240VAC 40 Amps Open 3 Poles Nonreversing 1NC 1NO 50 60 Hz NEW
IEC Contactor 240VAC 40 Amps Open 3 Poles Nonreversing 1NC 1NO 50 60 Hz NEW
$47.00
Time Remaining: 14h 41m
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IEC Contactor 120VAC 9 Amps Open 3 Poles Reversing 1NO 50 60 Hz NEW
IEC Contactor 120VAC 9 Amps Open 3 Poles Reversing 1NO 50 60 Hz NEW
$55.00
Time Remaining: 14h 41m
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IEC Contactor 24VAC 32 Amps Open 3 Poles Nonreversing 1NO 50 60 Hz NEW
IEC Contactor 24VAC 32 Amps Open 3 Poles Nonreversing 1NO 50 60 Hz NEW
$45.00
Time Remaining: 14h 41m
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IEC Contactor 240VAC 50A Open 3 Poles Nonreversing 1NC 1NO 50 60 Hz NEW
IEC Contactor 240VAC 50A Open 3 Poles Nonreversing 1NC 1NO 50 60 Hz NEW
$65.00
Time Remaining: 14h 41m
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Allen Bradley 500 AOD Size 0 Contactor 3 Pole Used 9 1
Allen Bradley 500 AOD Size 0 Contactor 3 Pole Used 9 1
$35.00
Time Remaining: 14h 42m
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Allen Bradley 500 A092 Ser B NEMA Size 0 2 Poles Contactor
Allen Bradley 500 A092 Ser B NEMA Size 0 2 Poles Contactor
$68.75
Time Remaining: 14h 49m
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X12 1 USED TELEMECANIQUE LC1 D12 10 CONTACTOR 120V 12A 3 POLE
X12 1 USED TELEMECANIQUE LC1 D12 10 CONTACTOR 120V 12A 3 POLE
$32.99
Time Remaining: 15h 8m
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Joslyn Clark Contactor 110A 500VDC 5DP3 5051 11 2 Pole Used
Joslyn Clark Contactor 110A 500VDC 5DP3 5051 11 2 Pole Used
$150.00
Time Remaining: 15h 9m
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C350C PACKARD Magnetic Contactor 3 Pole 50 Amp Coil 208 240V
C350C PACKARD Magnetic Contactor 3 Pole 50 Amp Coil 208 240V
$42.50
Time Remaining: 15h 29m
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New Square D 8903LO4O Lighting Contactor 4 Pole 20 Amp 120 V 60 Hz
New Square D 8903LO4O Lighting Contactor 4 Pole 20 Amp 120 V 60 Hz
$200.00
Time Remaining: 15h 41m
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Used Sprecher + Schuh Contactor CA6 300 EI NEMA 4 340 A 600 VAC 3 Pole
Used Sprecher + Schuh Contactor CA6 300 EI NEMA 4 340 A 600 VAC 3 Pole
$699.00
Time Remaining: 15h 55m
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SQUARE D SIZE 0 CONTACTOR CAT 8536SBO2H20S 600V 3POLE 120VCOIL
SQUARE D SIZE 0 CONTACTOR CAT 8536SBO2H20S 600V 3POLE 120VCOIL
$19.99
Time Remaining: 16h 2m
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ABB ASEA EFLG280 G20R 280 amp 2 pole 500V 150 hp max DC contactor New old stock
ABB ASEA EFLG280 G20R 280 amp 2 pole 500V 150 hp max DC contactor New old stock
$899.99
Time Remaining: 16h 7m
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Honeywell DP3090B1005 Definite Purpose Contactor 3 Pole
Honeywell DP3090B1005 Definite Purpose Contactor 3 Pole
$229.00
Time Remaining: 16h 13m
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New Cerus Non Reversing Contactor MRC 18 480VAC 3 pole 18 amp 480 volt coil
New Cerus Non Reversing Contactor MRC 18 480VAC 3 pole 18 amp 480 volt coil
$46.88
Time Remaining: 16h 18m
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AEG SP 77 3 pole Motor Contactor 110 Amp 3 phase
AEG SP 77 3 pole Motor Contactor 110 Amp 3 phase
$25.00
Time Remaining: 16h 19m

GENERAL ELECTRIC CR353AC4AH1 30A 4 Pole Contactor 24VAC Coil
GENERAL ELECTRIC CR353AC4AH1 30A 4 Pole Contactor 24VAC Coil
$22.65
Time Remaining: 16h 26m
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New Cerus MRC 9 208VAC Non Reversing Contactor 3 pole 9 amp 208 volt
New Cerus MRC 9 208VAC Non Reversing Contactor 3 pole 9 amp 208 volt
$21.55
Time Remaining: 16h 28m
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ABB A9 30 01 4 Pole Contactor 26 Amp USED
ABB A9 30 01 4 Pole Contactor 26 Amp USED
$28.99
Time Remaining: 16h 29m
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New Cerus Non Reversing Contactors MRC 9 220VAC 3 pole 9 amp 220 volt coil
New Cerus Non Reversing Contactors MRC 9 220VAC 3 pole 9 amp 220 volt coil
$21.55
Time Remaining: 16h 31m
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GE LDR01AB REVERSING CONTACTOR IEC SIZE C 3 POLE 25 AMP12 VDC COIL NNB
GE LDR01AB REVERSING CONTACTOR IEC SIZE C 3 POLE 25 AMP12 VDC COIL NNB
$149.99
Time Remaining: 16h 32m
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SQUARE D 3 POLE REVERSING MINI CONTACTOR TESYS LC2K1201F7
SQUARE D 3 POLE REVERSING MINI CONTACTOR TESYS LC2K1201F7
$30.00
Time Remaining: 16h 35m

New Non Reversing Contactor MRC 9 240VAC Cerus 3 pole 9 amp 240 volt Coil
New Non Reversing Contactor MRC 9 240VAC Cerus 3 pole 9 amp 240 volt Coil
$21.55
Time Remaining: 16h 35m
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GENERAL ELECTRIC CR453AB3CAA CONTACTORS 25 AMP 3 POLES LOT OF 2 NEW
GENERAL ELECTRIC CR453AB3CAA CONTACTORS 25 AMP 3 POLES LOT OF 2 NEW
$25.50
Time Remaining: 16h 50m
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New Cerus Non Reversing Contactor 3 pole 9 amp 24 volt coil MRC 9 24VAC
New Cerus Non Reversing Contactor 3 pole 9 amp 24 volt coil MRC 9 24VAC
$21.55
Time Remaining: 17h 2m
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New Cerus Non Reversing Contactor MRC 9 277VAC 3 pole 9 amp 277 volt coil
New Cerus Non Reversing Contactor MRC 9 277VAC 3 pole 9 amp 277 volt coil
$21.55
Time Remaining: 17h 9m
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Allen Bradley 100S D140D22C 3 Pole 220 Amp 600 Vac Contactor 56 136V Coil
Allen Bradley 100S D140D22C 3 Pole 220 Amp 600 Vac Contactor 56 136V Coil
$87.50
Time Remaining: 17h 15m
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Reversing Contactor 3 Pole 9A AC3 20A AC1 Solder Pins for Circuit Board
Reversing Contactor 3 Pole 9A AC3 20A AC1 Solder Pins for Circuit Board
$165.99
Time Remaining: 17h 16m
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Square D DPA13 Class 8910 Contactor 3 Pole 25A 600V  WOW
Square D DPA13 Class 8910 Contactor 3 Pole 25A 600V WOW
$29.99
Time Remaining: 17h 25m
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Furnas 42AF15AF Definite Purpose Contactor 3 Pole 600V 240V Coil
Furnas 42AF15AF Definite Purpose Contactor 3 Pole 600V 240V Coil
$20.00
Time Remaining: 17h 29m
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1 pc Siemens Furnas DP Contactor 42AF15AF 25 Amp 600V 2 Pole New
1 pc Siemens Furnas DP Contactor 42AF15AF 25 Amp 600V 2 Pole New
$17.95
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Furnas 42CE25AJ106 Definite Magnetic Contactor FL 40 RES 50 Amp 4 Pole 24V Coil
Furnas 42CE25AJ106 Definite Magnetic Contactor FL 40 RES 50 Amp 4 Pole 24V Coil
$49.00
Time Remaining: 17h 52m
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New Cerus Non Reversing Contactor MRC 32 48VAC 3 pole 32 amp 48 volt coil
New Cerus Non Reversing Contactor MRC 32 48VAC 3 pole 32 amp 48 volt coil
$62.67
Time Remaining: 17h 55m
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1 pc Square D DP Contactor 8910DPA33 30 Amp 600V 3 Pole New
1 pc Square D DP Contactor 8910DPA33 30 Amp 600V 3 Pole New
$24.00
Time Remaining: 17h 57m
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SQUARE D ENCL 30A 8 POLE LIGHTING CONTACTOR CAT 8903LXO80 120VCOIL 600V
SQUARE D ENCL 30A 8 POLE LIGHTING CONTACTOR CAT 8903LXO80 120VCOIL 600V
$449.99
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NEW AC Contactor Motor Starter Relay 3 Phase Pole 18A Up To 14HP 120 240V Coil
NEW AC Contactor Motor Starter Relay 3 Phase Pole 18A Up To 14HP 120 240V Coil
$24.99
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CUTLER HAMMER CE15AN4 B1 CONTACTOR SIZE A 7AMP 4POLE 120VAC USED
CUTLER HAMMER CE15AN4 B1 CONTACTOR SIZE A 7AMP 4POLE 120VAC USED
$40.00
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SIEMENS 24VDC COIL 600V 2 POLE 32A DC CONTACTOR 3TC44 17 0A
SIEMENS 24VDC COIL 600V 2 POLE 32A DC CONTACTOR 3TC44 17 0A
$14.99
Time Remaining: 18h 19m
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Mars 780 Definite Purpose Contactor 3 Pole 30A Ind 40A Res 24VAC 61430
Mars 780 Definite Purpose Contactor 3 Pole 30A Ind 40A Res 24VAC 61430
$17.00
Time Remaining: 18h 23m
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New Cerus Non Reversing Contactor 3 pole 50 amp 24 volt Coil MRC 50L 24VAC
New Cerus Non Reversing Contactor 3 pole 50 amp 24 volt Coil MRC 50L 24VAC
$109.04
Time Remaining: 18h 27m
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New Non Reversing Contactor MRC 50L 48VAC 3 pole 50 amp 48 volt Coil Cerus
New Non Reversing Contactor MRC 50L 48VAC 3 pole 50 amp 48 volt Coil Cerus
$109.04
Time Remaining: 18h 30m
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JOSLYN CLARK A77 288520A 31 3PH 3P POLE 75A AMP 120V AC CONTACTOR 600V B205915
JOSLYN CLARK A77 288520A 31 3PH 3P POLE 75A AMP 120V AC CONTACTOR 600V B205915
$11.77
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EATON CUTLER HAMMER A201K3BA Size 3 A200 110 120V 2 Pole Contactor
EATON CUTLER HAMMER A201K3BA Size 3 A200 110 120V 2 Pole Contactor
$500.00
Time Remaining: 18h 36m
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Elmwood Sensors 30 B0 20 2Pole Contactor 2each
Elmwood Sensors 30 B0 20 2Pole Contactor 2each
$34.99
Time Remaining: 18h 51m
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NEW Potter  Brumfield P31E Series 3 Pole 40 Amp Magnetic Contactor 240 480 600
NEW Potter Brumfield P31E Series 3 Pole 40 Amp Magnetic Contactor 240 480 600
$49.95
Time Remaining: 18h 51m
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Sprecher+Schuh Contactor CA7 9C 10 24VDC 3 Pole Sprecher Schuh
Sprecher+Schuh Contactor CA7 9C 10 24VDC 3 Pole Sprecher Schuh
$20.00
Time Remaining: 18h 55m
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Square D 8910DPA23V14 Definite Purpose Contactor 3 Pole
Square D 8910DPA23V14 Definite Purpose Contactor 3 Pole
$42.00
Time Remaining: 18h 56m
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