Item #: CR4220
Our Price: $104.59
Input range  
The CR4220 Series, Loop-powered Current Transmitter produces a calibrated 4-20mAdc output signal that is proportional to the Average RMS input AC current. These devices provide long range monitoring of AC sinusoidal currents in an easy to install package. The output signal is generated from a user supplied PLC power supply within the output current loop.

Catalog Page

Application Guides

Step File

Current AC Current
Frequency AC Frequency
RMS Average RMS
Elements Single Element
Outputs 4-20 mA DC
Power Loop Powered
Mount DIN Rail Mount,Panel Mount


  • DIN rail or panel mount
  • High Accuracy
  • Easy wiring
  • Interfaces with most commercially available instruments
  • Connection diagram printed on case
  • Relatively low cost


  • Response Time: 250 ms
  • Output Load: 0 To 300 Ω
  • Frequency Range: 50 - 400 Hz
  • Power Source: Loop Powered
  • Insulation Voltage: 2500 VDC
  • MTBF: Greater than 100 K hours
  • Thermal Drift: 500 PPM/°C
  • Basic Accuracy: 0.5%
  • Calibration: Average Sensing, RMS Calibrated


  • Multi-point current sensing and control panels
  • Monitor lighting elements
  • Monitor heating elements
  • Remote current sensing
  • Monitor motor faults


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Digi-Key Corporation            Davis Instruments
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