CRD4550 Two Element, 3-Wire AC Voltage RS485 Digital Transducer

The CRD4500 Series Data Stream Digital Transducers are designed for applications where AC current waveforms are not purely sinusoidal. The digital technology is used to measure voltage, current, power frequency and energy in single and three phase designs. The data is streamed over an RS485 IEEE bus which enables multiple transducers to communicate thru a single master connection. These advanced sensors are ideal for entire plant or zone monitoring. Also, the communication alagorithm can be pre-ordered with ASCII based control or modified MODBUS based control.
Price: $411.64

Power Supply


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  • Heart Beat and Communication Indicators
  • Pre-Calibrated with Non-Volatile Memory
  • RS485 Output
  • Optional MODBUS Output
  • Voltage Input up to 300 VAC
  • Three Phase 3 Wire
  • DIN Rail or Surface Mount


  • Basic Accuracy: 0.5%
  • Frequency Range 45 ~ 65 Hz
  • Continuous Overvoltage: 2 times Full Scale
  • Isolation Voltage: 2500 VDC
  • Supply Voltage: 24VDC +/- 5%
  • Supply Power: Less than 250 mWatts
  • Output ESD Protection: +/- 15KV
  • Output Resolution: 16 BIT
  • Operating Temperature: 0 to 50 C


    • Sub-Metering Energy Measurement
    • Motor Loads
    • Remote Monitoring
    • Automatic Control Systems
    • Load Shedding


    • True RMS Voltage, Each Phase