The MTT MS3920 Chassis-mounting CT Transmitter converts the AC current signal from a current transformer into a standard isolated DC output, giving switchgear and motor control panels a clean way to read line current into a PLC, indicator, or recorder. Its true-RMS operation keeps the reading accurate even on distorted, non-sinusoidal current waveforms, which matters increasingly as variable-frequency drives and other non-linear loads become common on the circuits being monitored.
Packaged in the compact chassis-mount format shared with the rest of the MS39-series for high-density installations on MTT’s RC3900 chassis platform, the MS3920 accepts a 0-1A or 0-5A AC input and can tolerate instantaneous overloads up to ten times its rated input for short-circuit conditions without damage. Dual output combinations of voltage and current are available to match the receiving equipment, front-accessible trimmers allow zero and span adjustment, and isolation between input, both outputs, and power keeps the transmitted signal free of noise and ground loops.
