Environment Monitoring System IP Temp CAT5 Video Extender HDMI VGA DVI KVM Switch, Video Splitter, Video Matrix Switch

3-Phase Power Transducer, 480 VAC, 300 Amps, for Unbalanced lines

NTI Part #: ENVIROMUX-PT3S-480-0300
Monitors and reports kW real power to the ENVIROMUX-2D/5D/16D. Requires ENVIROMUX-S420MA-24V. Three Small CTs, 480VAC, 300 Amps Max.
  • Monitors and reports kW real power of any 3 phase circuit, such as the power a building consumes.
  • Split-core design allows installation of CT without disconnecting conductor.
  • Color coded CT and voltage leads.
  • Smart electronics in sensors automatically detect phase reversal.
  • Input primary voltage: 208/240 or 480 VAC RMS
  • Number of phases monitored: one or three
    • Balanced Loads: one CT model (assumes single reading represents all phase currents)
    • Unbalanced Loads: three CT model, one black, red, and yellow.
  • Frequency: 50/60Hz
  • Maximum primary current: Up to 2400 amps continuous per phase
  • Accuracy: ±1%
  • Output: 4-20 mA
  • Supply power (current loop): 9-30VDC; 30 mA max.
  • Requires the ENVIROMUX-S420MA-24V to operate.
    • Powered by ENVIROMUX-2D/5D/16D.
  • How to install: sensors tie directly into the line. Caution: should be installed by qualified electricians only.
    • Make sure electrical service is disconnected before making any electrical connections.

Application Notes

  • 3-Phase Power Transducer Application
    3-Phase Power Transducer Application

    The ENVIROMUX 3-Phase Power Transducer monitors and reports kW real power of any 3 phase circuit, such as the power a building consumes. Connect the 4-20 mA output lead to the ENVIROMUX-S420MA 4-20 mA Sensor Converter with the ISA Type 2 connection method.

    ISA Type 2 Connection:

    • Connect the Positive (+) lead from the Power Transducer to the Negative (-) terminal of either group 1 or group 2 of the terminal block on the Sensor Converter.
    • Connect the Negative (-) lead to the Earth Ground terminal in the same group.
    • Connect the Shield (S) lead to the chassis ground.
    • Connect one end of a short wire to the Positive (+) terminal, and connect the other end of the wire to the 18V terminal.

    Note: For the Single CT model on a balanced load, multiply output by the number of voltage leads connected to conductors (usually 2 or 3) for proper kW indication.

NOTE: Contact an NTI Product Consultant for other available models.