Hello,
I’m putting an oak control together for a new router build. I need to source Contactors and wondered if 24vac powered will work and where they get their power from….
Thanks in advance
Chris
Contactor voltages
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Re: Contactor voltages
Contactors of any coil voltage will work, for the purpose of switching power to drives or motors.
The benefits of using 24VAC contactors are that the lower voltage is safer than 120VAC to run through the Belden cable to the handheld pendant (if you are using a handheld pendant); and 24VAC contactors are often slightly more compact and less expensive than 24VDC ones.
If you are not using a Centroid-supplied transformer, then you will need to install a transformer that makes 24VAC from whatever line power your cabinet uses. If your incoming power is 240VAC, one option (among many) is this one:
https://www.automationdirect.com/adc/sh ... rs/ph100pg
Optionally, if you need both 120VAC for your operator console and 24VAC for contactors, you can use something like this one:
https://www.automationdirect.com/adc/sh ... s/ph500mli
SquareD has comparable models, e.g. 9070T500D15
The benefits of using 24VAC contactors are that the lower voltage is safer than 120VAC to run through the Belden cable to the handheld pendant (if you are using a handheld pendant); and 24VAC contactors are often slightly more compact and less expensive than 24VDC ones.
If you are not using a Centroid-supplied transformer, then you will need to install a transformer that makes 24VAC from whatever line power your cabinet uses. If your incoming power is 240VAC, one option (among many) is this one:
https://www.automationdirect.com/adc/sh ... rs/ph100pg
Optionally, if you need both 120VAC for your operator console and 24VAC for contactors, you can use something like this one:
https://www.automationdirect.com/adc/sh ... s/ph500mli
SquareD has comparable models, e.g. 9070T500D15