24V Contactor

24V Contactors

24V contactors are often used in HVAC and air compressor applications, and can have DC, AC, or DC/AC coils.

Your choice of coil voltage depends on what kind of power supply you have available for the control circuit powering your contactor. Lower voltages are safer for both AC and DC. However, keeping power consumption constant, lower voltages mean you will have higher current (amps) and will require larger coils to prevent overloading (electric current generates heat, and too much current will overheat and damage the coils and the contactor).

A 24V contactor with an AC coil may be used where safety is an issue. It is also easier to provide 24V AC as long as you are able to step-down the voltage coming from your outlets, while a 24V contactor with a DC coil will require either some sort of battery power or a rectifier to convert the AC power coming from your local power lines.

Practically speaking, the primary difference between AC and DC power is the fact that damage from arcing is far more of a concern for DC circuits than AC.

Click here for more information on selecting a contactor. Need to replace a 24V contactor in your machine? See the entire product line below.

24V contactor 24V contactor alternative

2 Pole Contactors

Maximum UL Horsepower Auxiliary
Contacts
Current
Rating
Amps
Model No.
(AC Coil Voltage)
Single Phase
115V 230V N.O. N.C. 24V
0.5 1.5 0 0 9 CWM9-00-20V04
0.75 2 0 0 12 CWM12-00-20V04
1 3 0 0 18 CWM18-00-20V04
2 5 0 0 25 CWM25-00-20V04
3 5 0 0 32 CWM32-00-20V04
3 5 0 0 40 CWM40-00-20V04
3 7.5 0 0 50 CWM50-00-20V04
5 10 0 0 65 CWM65-00-20V04
7.5 15 0 0 80 CWM80-00-20V04
7.5 15 0 0 95 CWM95-00-20V04
10 20 0 0 105 CWM105-00-20V04

3 Pole Contactors

CWC Series

Maximum UL Horsepower Auxiliary
Contacts
Current
Rating
Amps
Model No.
(AC Coil Voltage)
Single Phase Three Phase
115V 230V 200V 230V 460V 575V N.O. N.C. 24VAC
0.33 0.75 1.5 1.5 5 5 1 0 7 CWC07-10-30V04
0 1 CWC07-01-30V04
0.33 1 2 3 5 7.5 1 0 9 CWC09-10-30V04
0 1 CWC09-01-30V04
0.5 2 3 3 7.5 7.5 1 0 12 CWC012-10-30V04
0 1 CWC012-01-30V04
1 2 3 5 10 10 1 0 16 CWC016-10-30V04
0 1 CWC016-01-30V04
1.5 3 5 7.5 15 15 0 0 25 CWC025-00-30V04
Maximum UL Horsepower Auxiliary
Contacts
Current
Rating
Amps
Model No.
(DC Coil Voltage)
Single Phase Three Phase
115V 230V 200V 230V 460V 575V N.O. N.C. 24VDC 24VDC Low Consumption
0.33 0.75 1.5 1.5 5 5 1 0 7 CWC07-10-30C03 CWC07-10-30L03
0 1 CWC07-01-30C03 CWC07-01-30L03
0.33 1 2 3 5 7.5 1 0 9 CWC09-10-30C03 CWC09-10-30L03
0 1 CWC09-01-30C03 CWC09-01-30L03
0.5 2 3 3 7.5 7.5 1 0 12 CWC012-10-30C03 CWC012-10-30L03
0 1 CWC012-01-30C03 CWC012-01-30L03
1 2 3 5 10 10 1 0 16 CWC016-10-30C03 CWC016-10-30L03
0 1 CWC016-01-30C03 CWC016-01-30L03

CWM Series - AC Coil

Maximum UL Horsepower Auxiliary
Contacts
Current
Rating
Amps
Model No.
(AC Coil Voltage)
Single Phase Three Phase
115V 230V 200V 230V 460V 575V N.O. N.C. 24VAC
0.5 1.5 3 3 5 7.5 1 0 9 CWM9-10-30V04
0 1 CWM9-01-30V04
0.75 2 3 3 7.5 10 1 0 12 CWM12-10-30V04
0 1 CWM12-01-30V04
1 3 5 5 10 15 1 0 18 CWM18-10-30V04
0 1 CWM18-01-30V04
2 5 7.5 7.5 15 15 0 0 25 CWM25-00-30V04
3 5 10 10 20 25 0 0 32 CWM32-00-30V04
3 5 10 15 30 25 0 0 40 CWM40-00-30V04
3 7.5 15 15 40 40 0 0 50 CWM50-00-30V04
5 10 20 20 50 50 0 0 65 CWM65-00-30V04
7.5 15 20 25 50 60 0 0 80 CWM80-00-30V04
7.5 15 25 30 60 75 0 0 95 CWM95-00-30V04
10 20 30 40 75 75 0 0 105 CWM105-00-30V04

CWM Series - DC Coil

Maximum UL Horsepower Auxiliary
Contacts
Current
Rating
Amps
Model No.
(DC Coil Voltage)
Single Phase Three Phase
115V 230V 200V 230V 460V 575V N.O. N.C. 24-28VDC
3 5 10 10 20 25 0 0 32 CWM32-00-30C34
3 5 10 15 30 25 0 0 40 CWM40-00-30C34
3 7.5 15 15 40 40 0 0 50 CWM50-00-30C34
5 10 20 20 50 50 0 0 65 CWM65-00-30C34
7.5 15 20 25 50 60 0 0 80 CWM80-00-30C34
7.5 15 25 30 60 75 0 0 95 CWM95-00-30C34
10 20 30 40 75 75 0 0 105 CWM105-00-30C34

AC/DC Electronic Module Coil

Maximum UL Horsepower Auxiliary
Contacts
Current
Rating
Amps
Model No.
(AC/DC Coil Voltage)
Three Phase
200V 230V 460V 575V N.O. N.C. 24-28V
40 50 100 100 2 2 112 CWM112-22-30E02
50 60 125 150 2 2 150 CWM150-22-30E02
60 75 150 200 2 2 180 CWM180-22-30E02
75 100 200 250 2 2 250 CWM250-22-30E02
100 125 250 300 2 2 300 CWM300-22-30E02

CWM-N Series

Maximum UL Horsepower Auxiliary
Contacts
Current
Rating
Amps
Model No.
(AC Coil Voltage)
Single Phase Three Phase
115V 230V 200V 230V 460V 575V N.O. N.C. 24VAC
0.33 1 1.5 1.5 2 2 1 0 9 CWM9N-10-30V04
0 1 CWM9N-01-30V04
1 2 3 3 5 5 1 0 18 CWM18N-10-30V04
0 1 CWM18N-01-30V04
2 3 7.5 7.5 10 10 0 0 32 CWM32N-00-30V04
3 7.5 10 15 25 25 0 0 50 CWM50N-00-30V04
7.5 15 25 30 30 30 0 0 95 CWM95N-00-30V04

AC/DC Electronic Module Coil

Maximum UL Horsepower Auxiliary
Contacts
Current
Rating
Amps
Model No.
(AC/DC Coil Voltage)
Three Phase
200V 230V 460V 575V N.O. N.C. 24-28V
40 50 100 100 2 2 150 CWM150N-22-30E02
75 100 200 200 2 2 300 CWM300N-22-30E02

CWB Series

Operative Rated Operational Power of 3 Phase Motors (50/60 Hz) Auxiliary
Contacts
Current
Rating
Amps
Model No.
(AC Coil Voltage)
Three Phase
220-240V 380-400V 415-440V 500V 660-690V N.O. N.C. 24VAC 24VDC
3 5 6 7.5 7.5 1 1 9 CWB9-11-30D02 CWB9-11-30C03
4 7.5 7.5 10 10 1 1 12 CWB12-11-30D02 CWB12-11-30C03
6 10 12.5 12.5 15 1 1 18 CWB18-11-30D02 CWB18-11-30C03
7.5 15 15 20 20 1 1 25 CWB25-11-30D02 CWB25-11-30C03
10 20 20 25 25 1 1 32 CWB32-11-30D02 CWB32-11-30C03
12.5 25 25 25 25 1 1 38 CWB38-11-30D02 CWB38-11-30-C03

4 Pole Contactors

Auxiliary
Contacts
Current
Rating
Amps
Model No.
Coil Voltage)
N.O. N.C 24VAC 24VDC
4 0 18 CWC07-00-40V04 CWC07-00-40C03
2 2 CWC07-00-22V04 CWC07-00-22R03
4 0 20 CWC09-00-40V04 CWC09-00-40C03
2 2 CWC09-00-22V04 CWC09-00-22R03
4 0 22 CWC016-00-40V04 CWC016-00-40C03
2 2 CWC016-00-22V04 CWC016-00-22R03