Choosing the Right Voltage Sensor for 3-Phase Logging

Hello everyone,
I’m planning to buy a voltage sensor, but I’m unsure which ATO model suits my application. I need to log AC voltage in a 3-phase system. Should I choose ATO-VOS-AC1000 or ATO-VOS-3AC500?
Thanks

Daniel wrote:Hi Daniel, we can provide the voltage sensor only.
1. What is the measured voltage range? Is it AC or DC?
2. What output signal do you require?

ATO wrote:Thanks for your attention. We have a current sensor from ATO: ATO-CUS-3AC80 [Range 0-80A, Output 0-5V, Power 12VDC]
We monitor the current consumption of a pump system that normally runs on 400VAC 3-phase, and occasionally on 600VAC 3-phase. The current sensor works great, so now we want to add a voltage sensor using the same setup: powered by 12VDC with 0–5V output.
I’m also a bit confused about the input terminals and output pins on the voltage sensors. Any help is appreciated.

Daniel wrote:Daniel, we use the ATO-VOS-3AC500 in our industrial pump systems. It’s basically plug-and-play with their 0–5V current sensors. As long as your max voltage stays under 500V line-to-line, you’re good. For occasional 600V events, you might want to double-check the headroom or use external PTs.

Ellertson wrote:Thanks!

Daniel wrote:Both ATO-VOS-AC1000 and ATO-VOS-3AC500 support a 12VDC power supply and a 0–5V output.
If your pump uses three-phase, three-wire wiring, we recommend the ATO-VOS-3AC500 model.

ATO wrote:Thank you! The recommendations helped a lot, and I’m leaning toward the 3AC500 model now.