Item #: CR4220S
Our Price: $143.19
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The CR4220S Series Average RMS Current Transducers and Transmitters are designed to provide a calibrated DC output proportional to the AC current input. Designed for multi-point current sensing, these devices provide excellent features in a high value package. Average RMS is recommended when sensing current waveforms that have a fixed frequency, and are usually for loads operated from standard utility power.

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Application Guides

Step File

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

Features

  • 35mm DIN Rail or Panel Mount
  • 4-20 mAdc
  • Loop Voltage 24 Vdc
  • Use with external current transformers
  • Highest precision available
  • Connection diagram printed on case

Specifications

  • Basic Accuracy: 1.0%
  • Calibration: Average RMS
  • Thermal Drift: 500 PPM/°C
  • Operating Temperature: 0°C to +60°C
  • Installation Category: CAT II
  • Polution Degree: 2
  • Insulation Voltage: 2500 Vdc
  • Altitude: 2000 meter max.
  • Frequency Range: 50 Hz - 400 Hz
  • MTBF: Greater than 100 K hours
  • Cleaning: Water-dampened cloth
  • Supply Voltage: 24 Vdc ±10%
  • Output Load: 1M Ω or Greater
  • Response Time: 250 ms max. 0-90% FS 
  • Relative Humidity: 80% for temperatures up to 31°C and decreasing linearly to 50% at 40°C

Applications

  • Directly connect to PLC
  • Sense motor stalls and short circuits
  • Industrial instrumentation
  • Process control loops
  • Phase Fired Controlled Heaters

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Davis Instruments
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