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Three-Phase AC Current Monitoring

July 31, 2017

A custom industrial furnace manufacturer came to OSI for three-phase current monitoring. Up to 600Aac would need to be measured depending on the size of the furnace.

OSI sales staff recommended the split-core CTY series transformer (UL listed) in combination with the 3ACT series current transducer, which is also UL. As an added bonus, both the CTY and the 3ACT can be calibrated as a set. The split-core transformer offered our customer easy installation and the perfect solution to their application needs.

The 3ACT three-phase AC current transducer, which provides three isolated dc outputs which are directly proportional to the three current inputs.

The output is derived from the average absolute value of the input and is calibrated in terms of the RMS value of the input sine wave.

Models with full-scale input ranges of 25A and higher use external sensors (CT’s).

With the exception of models which provide 4-20mA outputs, all models are self-powered from the measured line.

To view the Spec Sheet for the 3ACT, click here

Any questions about the 3ACT can be directed to our sales team!
or chat with us