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.

8903S0011 Latching lighting contactor 100A 120V coil 3 POLE
8903S0011 Latching lighting contactor 100A 120V coil 3 POLE
$480.00
Time Remaining: 2h 18m
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Mars 685744 18001 GE Magnetic Line Contactor 24V Coil Voltage 30A 2Pole Kit NO4
Mars 685744 18001 GE Magnetic Line Contactor 24V Coil Voltage 30A 2Pole Kit NO4
$51.99
Time Remaining: 3h 11m
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Telemecanique Contactor 75HP  480V 3pole  LC1D1210
Telemecanique Contactor 75HP 480V 3pole LC1D1210
$50.00
Time Remaining: 4h 15m
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GENERAL ELECTRIC CR353CB2AA1 DEFINITE PURPOSE 2P POLE 35A AMP CONTACTOR B269382
GENERAL ELECTRIC CR353CB2AA1 DEFINITE PURPOSE 2P POLE 35A AMP CONTACTOR B269382
$41.00
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CUTLER HAMMER CONTACTOR 120 AMP 600 VAC 3 POLE MODEL C832JN6 SER B1
CUTLER HAMMER CONTACTOR 120 AMP 600 VAC 3 POLE MODEL C832JN6 SER B1
$150.00
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Cutler Hammer C25DND330 Contactor 30 Amp 3 Pole
Cutler Hammer C25DND330 Contactor 30 Amp 3 Pole
$49.99
Time Remaining: 10h 8m
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NEW Contactor 40A 3 Poles 240V
NEW Contactor 40A 3 Poles 240V
$20.80
Time Remaining: 10h 18m
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NEW Contactor 40A 3 Poles 24V
NEW Contactor 40A 3 Poles 24V
$20.80
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NEW Contactor 30A 3 Poles 240V
NEW Contactor 30A 3 Poles 240V
$19.30
Time Remaining: 10h 25m
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NEW Contactor 30A 3 Poles 24V
NEW Contactor 30A 3 Poles 24V
$19.30
Time Remaining: 10h 28m
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2 General Electric CR353AD3BH1AB Definite Purpose Contactor 40 Amp 3 Poles NEW
2 General Electric CR353AD3BH1AB Definite Purpose Contactor 40 Amp 3 Poles NEW
$145.00
Time Remaining: 10h 31m
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CJX2 09 AC Contactor AC380 Volt Coil Relay 3 Phase Pole Ui 660V Ith 20A
CJX2 09 AC Contactor AC380 Volt Coil Relay 3 Phase Pole Ui 660V Ith 20A
$19.18
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NEW FURNAS 45EA20AJ536R DEFINITE PURPOSE 2 POLE CONTACTOR SERIES B
NEW FURNAS 45EA20AJ536R DEFINITE PURPOSE 2 POLE CONTACTOR SERIES B
$99.99
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CK96BE300 General Electric GE Contactor 110 127V Coil 3 Pole 310 Amp 600V
CK96BE300 General Electric GE Contactor 110 127V Coil 3 Pole 310 Amp 600V
$814.99
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SIEMENS 3TB4417 0A 3P POLE 115V AC 20HP 45A AMP SIZE 1 AC CONTACTOR B396622
SIEMENS 3TB4417 0A 3P POLE 115V AC 20HP 45A AMP SIZE 1 AC CONTACTOR B396622
$32.00
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Elmwood Sensors 30 DO 30 24 volt coil contactor 25 amp 3 pole 30DO30
Elmwood Sensors 30 DO 30 24 volt coil contactor 25 amp 3 pole 30DO30
$24.99
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SIEMENS 24VDC COIL 3 POLE CONTACTOR 3RT1044 1BB40 NIB
SIEMENS 24VDC COIL 3 POLE CONTACTOR 3RT1044 1BB40 NIB
$140.50
Time Remaining: 11h 49m
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Allen Bradley 400 DP40ND3 M 40A 120V 50 60HZ 3 Pole Definite Purpose Contactor
Allen Bradley 400 DP40ND3 M 40A 120V 50 60HZ 3 Pole Definite Purpose Contactor
$21.99
Time Remaining: 11h 59m
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Siemens Reversing Magnetic Contactor REV 3TF4822 120V 3 Pole 75Hp 600v 120v Coil
Siemens Reversing Magnetic Contactor REV 3TF4822 120V 3 Pole 75Hp 600v 120v Coil
$575.00
Time Remaining: 12h 4m
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ARROW HART 60A CONTACTOR CAT ACC630U30 240VCOIL 3POLE NIB
ARROW HART 60A CONTACTOR CAT ACC630U30 240VCOIL 3POLE NIB
$139.99
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Siemens Reversing Magnetic Contactor REV 3TF5022 120V 3 Pole 125Hp 600v 120vcoil
Siemens Reversing Magnetic Contactor REV 3TF5022 120V 3 Pole 125Hp 600v 120vcoil
$700.00
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Siemens Reversing Magnetic Contactor REV 3TF5222 120V 3 Pole 150Hp 600v 120vcoil
Siemens Reversing Magnetic Contactor REV 3TF5222 120V 3 Pole 150Hp 600v 120vcoil
$950.00
Time Remaining: 12h 14m
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Unused Siemens 3RT1023 1AK60 Contactor 9 Amp 3 Pole 120 Volt
Unused Siemens 3RT1023 1AK60 Contactor 9 Amp 3 Pole 120 Volt
$49.60
Time Remaining: 12h 17m
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Allen Bradley 3 Pole Mini Contactor 100 K05DJ01 NEW
Allen Bradley 3 Pole Mini Contactor 100 K05DJ01 NEW
$39.99
Time Remaining: 12h 19m
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ABB 480VAC COIL 600A 3 POLE CONTACTOR EH 550C ASL SK 827 605 AS
ABB 480VAC COIL 600A 3 POLE CONTACTOR EH 550C ASL SK 827 605 AS
$799.99
Time Remaining: 12h 20m
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Square D Contactor LC1 F115 600VAC Max 3ph 3 poles USED
Square D Contactor LC1 F115 600VAC Max 3ph 3 poles USED
$99.00
Time Remaining: 12h 24m
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Siemens 3TB46 170A Contactor 3 Pole 600VAC
Siemens 3TB46 170A Contactor 3 Pole 600VAC
$87.99
Time Remaining: 12h 33m
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ABB CONTACTOR CAT EK100C4P 170A 600VAC 24V COIL 4POLE
ABB CONTACTOR CAT EK100C4P 170A 600VAC 24V COIL 4POLE
$599.99
Time Remaining: 12h 34m
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New In Box Allen Bradley 100 C16KJ10 Contactor 3 Pole 24V
New In Box Allen Bradley 100 C16KJ10 Contactor 3 Pole 24V
$59.98
Time Remaining: 12h 53m
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NEW ALLEN BRADLEY 500 DOD920 1PH 2 POLE SIZE 3 120V AC 15HP 90A CONTACTOR
NEW ALLEN BRADLEY 500 DOD920 1PH 2 POLE SIZE 3 120V AC 15HP 90A CONTACTOR
$259.99
Time Remaining: 12h 58m
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Siemens 3TF41 10 0BB4 12A 3 Pole 24VDC 1NO Contactor
Siemens 3TF41 10 0BB4 12A 3 Pole 24VDC 1NO Contactor
$24.50
Time Remaining: 13h 4m
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Allen Bradley 4 Pole Contactor 100 C90D400
Allen Bradley 4 Pole Contactor 100 C90D400
$179.95
Time Remaining: 13h 19m
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SIEMENS 2 POLE 24VDC COIL DC CONTACTOR 3TC4417 0A
SIEMENS 2 POLE 24VDC COIL DC CONTACTOR 3TC4417 0A
$19.99
Time Remaining: 13h 25m
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NEW IN BOX ALLEN BRADLEY CONTACTOR 100 C09D10 SER A 3 MAIN POLES 1 NO AUX CONT
NEW IN BOX ALLEN BRADLEY CONTACTOR 100 C09D10 SER A 3 MAIN POLES 1 NO AUX CONT
$58.00
Time Remaining: 13h 25m
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NEW ALLEN BRADLEY 500 AOD93 500A0D93 AC CONTACTOR SIZE 0 3 POLE NEW IN BOX
NEW ALLEN BRADLEY 500 AOD93 500A0D93 AC CONTACTOR SIZE 0 3 POLE NEW IN BOX
$129.99
Time Remaining: 13h 32m
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Allen Bradley 702BOA93 Ser K CONTACTOR SIZE1 3POLE 240VAC
Allen Bradley 702BOA93 Ser K CONTACTOR SIZE1 3POLE 240VAC
$59.99
Time Remaining: 13h 54m
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ABB EH Series Contactor 3 Phase 3 Pole Cat EH 175  WD 41
ABB EH Series Contactor 3 Phase 3 Pole Cat EH 175 WD 41
$249.00
Time Remaining: 14h 4m
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Contactor IEC 3Pole 208VAC 40A
Contactor IEC 3Pole 208VAC 40A
$316.53
Time Remaining: 14h 6m
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Contactor IEC 3Pole 24VAC 50A
Contactor IEC 3Pole 24VAC 50A
$340.30
Time Remaining: 14h 6m
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Contactor IEC 3Pole 24VDC 40A
Contactor IEC 3Pole 24VDC 40A
$316.53
Time Remaining: 14h 6m
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Contactor IEC 3Pole 208VAC 50A
Contactor IEC 3Pole 208VAC 50A
$340.30
Time Remaining: 14h 6m
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Contactor IEC 3Pole 240VAC 50A
Contactor IEC 3Pole 240VAC 50A
$340.30
Time Remaining: 14h 6m
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Contactor IEC 3Pole 24VAC 40A
Contactor IEC 3Pole 24VAC 40A
$316.53
Time Remaining: 14h 6m
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Contactor IEC 3Pole 480VAC 40A
Contactor IEC 3Pole 480VAC 40A
$316.53
Time Remaining: 14h 7m
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Contactor IEC 3Pole 24VDC 50A
Contactor IEC 3Pole 24VDC 50A
$340.30
Time Remaining: 14h 7m
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Contactor IEC 3Pole 120VAC 40A
Contactor IEC 3Pole 120VAC 40A
$316.53
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Contactor IEC 3Pole 240VAC 40A
Contactor IEC 3Pole 240VAC 40A
$316.53
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Arrow Hart Contactor 3 Pole 75 amp ACC630U10 Model E
Arrow Hart Contactor 3 Pole 75 amp ACC630U10 Model E
$59.99
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Contactor IEC 3Pole 240VAC 65A
Contactor IEC 3Pole 240VAC 65A
$467.55
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Contactor IEC 3Pole 208VAC 65A
Contactor IEC 3Pole 208VAC 65A
$467.55
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Contactor IEC 3Pole 120VAC 65A
Contactor IEC 3Pole 120VAC 65A
$467.55
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Contactor IEC 3Pole 480VAC 50A
Contactor IEC 3Pole 480VAC 50A
$340.30
Time Remaining: 14h 7m
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Allen Bradley 100 A18ND3 Ser C CONTACTOR 18AMP 3POLE 110 120V 50 60HZ USED
Allen Bradley 100 A18ND3 Ser C CONTACTOR 18AMP 3POLE 110 120V 50 60HZ USED
$29.59
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Contactor IEC 3Pole 24VAC 65A
Contactor IEC 3Pole 24VAC 65A
$467.55
Time Remaining: 14h 7m
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Contactor IEC 3Pole 24VDC 65A
Contactor IEC 3Pole 24VDC 65A
$467.55
Time Remaining: 14h 7m
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Contactor IEC 3Pole 480VAC 65A
Contactor IEC 3Pole 480VAC 65A
$467.55
Time Remaining: 14h 7m
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Contactor IEC 3Pole 120VAC 50A
Contactor IEC 3Pole 120VAC 50A
$340.30
Time Remaining: 14h 7m
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40 A 240 VAC Definite Purpose Contactor Single Phase 2 Pole Open
40 A 240 VAC Definite Purpose Contactor Single Phase 2 Pole Open
$16.00
Time Remaining: 14h 15m
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KLOCKNER MOELLER DIL EM 10 G CONTACTOR 15 AMP 3 POLE
KLOCKNER MOELLER DIL EM 10 G CONTACTOR 15 AMP 3 POLE
$49.99
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Westinghouse a200m4cacm size 4 Two Pole Contactor 120v coil
Westinghouse a200m4cacm size 4 Two Pole Contactor 120v coil
$95.00
Time Remaining: 14h 30m
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LENNOX 48G57 CONTACTOR 2 POLE DT 24V 1 PHASE K2 4995 FREE SHIPPING
LENNOX 48G57 CONTACTOR 2 POLE DT 24V 1 PHASE K2 4995 FREE SHIPPING
$44.95
Time Remaining: 14h 46m
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Cutler Hammer 10 4352 5 3PH 3 Pole 700A 480V 600V Contactor
Cutler Hammer 10 4352 5 3PH 3 Pole 700A 480V 600V Contactor
$749.95
Time Remaining: 14h 56m
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AB Allen Bradley Non Reversing Contactor 100 D110 110 120v Coil 3Pole
AB Allen Bradley Non Reversing Contactor 100 D110 110 120v Coil 3Pole
$149.99
Time Remaining: 14h 59m
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LK NES 272B4012 1203 Magnetic Contactor 20A 6Pole 24 29V  WOW
LK NES 272B4012 1203 Magnetic Contactor 20A 6Pole 24 29V WOW
$36.99
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LK NES 272B4012 1214 Magnetic Contactor 20A 6Pole 220 265V  WOW
LK NES 272B4012 1214 Magnetic Contactor 20A 6Pole 220 265V WOW
$39.99
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LK NES 272B4012 1212 Magnetic Contactor 20A 6Pole 185 220V  WOW
LK NES 272B4012 1212 Magnetic Contactor 20A 6Pole 185 220V WOW
$39.99
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SQUARE D SIZE 4 CONTACTOR 8502SF02S 120 VAC COIL 3 POLE 600 VAC 100 HP
SQUARE D SIZE 4 CONTACTOR 8502SF02S 120 VAC COIL 3 POLE 600 VAC 100 HP
$274.99
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NEW Cerus MRC 50 120 MRC50 50 Amp 120 Volt 3 Pole Non Reversing Contactor
NEW Cerus MRC 50 120 MRC50 50 Amp 120 Volt 3 Pole Non Reversing Contactor
$99.95
Time Remaining: 15h 12m
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Siemens CLHBG02120 Enclosed Lighting Contactor 2 pole 20 amp 277 480vac New NOS
Siemens CLHBG02120 Enclosed Lighting Contactor 2 pole 20 amp 277 480vac New NOS
$69.99
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BRAND NEW BOX FUJI BEIJING B65 3 POLE 220V 600V COIL 65A AC MOTOR CONTACTOR
BRAND NEW BOX FUJI BEIJING B65 3 POLE 220V 600V COIL 65A AC MOTOR CONTACTOR
$180.49
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Fuji Electric SC 2SN SC2SN Magnetic Contactor 80 Amp 600 V 3 Pole 50 110V Coil
Fuji Electric SC 2SN SC2SN Magnetic Contactor 80 Amp 600 V 3 Pole 50 110V Coil
$30.00
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Potter  Brumfield P30P42D12P1 24 3 Pole Contactor 600VAC Line 24VDC Control
Potter Brumfield P30P42D12P1 24 3 Pole Contactor 600VAC Line 24VDC Control
$15.00
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Telemecanique LP1 D4011BD Contactor 40 Amps 3 Pole 24VDC NEW
Telemecanique LP1 D4011BD Contactor 40 Amps 3 Pole 24VDC NEW
$105.00
Time Remaining: 15h 47m
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LG GMC 40 3 pole contactor with GTK 40 Thermal Overload
LG GMC 40 3 pole contactor with GTK 40 Thermal Overload
$60.00
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Furnas 41NB30ALM Magnetic Contactor 3 Pole 25 AMP 240V
Furnas 41NB30ALM Magnetic Contactor 3 Pole 25 AMP 240V
$28.88
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Siemens 3RT1015 1BB41 3 Pole Contactor w Surge Suppressor 3RT1916 1EH00
Siemens 3RT1015 1BB41 3 Pole Contactor w Surge Suppressor 3RT1916 1EH00
$30.00
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