ACI KW350 Power Quality Meter

3-channel power meter, bi-directional, 0.5 class accuracy, real-time true RMS measurement of voltage, current, power, frequency, and power factor.

Starting at $394.00

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Product Manual Product Specs

Features

  • Single Phase, 3 Phase – Four Wire (WYE), Three Phase – Three Wire (Delta) service type
  • 100-400 VAC Line to Neutral or 100-690 VAC Line to Line rated voltage
  • Serial RS-485 Modbus RTU or BACnet MS/TP communication protocols
  • 100 to 415 VAC, 50/60Hz, 100 to 300 VDC on terminals L and N power requirements
  • Three CT inputs
  • Voltage channels:
    • 400 Volts AC (L-N)
    • 690 VAC (L-L)
    • 50/60Hz
  • Three current channels:
    • 0.4 VAC max
    • 333 mV CTs or 0 to 6000 amps with Rogowski coils
  • LCD display with 3 modes
  • 5-year limited warranty

The ACI KW350 power quality meter is a three-channel power meter with 0.5 accuracy class that measures power and energy in single- and bi-directional electrical systems. It is designed for DIN rail mounting and is also available as a panel-mounted version with a NEMA 4X enclosure, pre-wired and labeled terminals for current transformers (CTs), voltage input terminal blocks, and industrial-grade fuses. An integrated LCD display provides local access to measurements and meter configuration.

The KW350 meter supports Modbus RTU, BACnet MS/TP, and pulse output communication for integration with building automation and data acquisition systems. Advanced configuration functions are available through utility software using an RS-485-to-USB converter. A built-in relay can be configured for alarm functions, and the meter includes event logging for operational data such as runtime and alarm events.

The KW350 measures current, active power, reactive power, apparent power, and associated demand values, including demand forecasting and peak demand. An Auto Phase-Check function identifies common wiring errors, including incorrect current transformer orientation and voltage/current phase alignment. The tamper-resistant design is approved for revenue applications, and models are available for use with either 333 mV or Rogowski coil current transformers.

ACI KW350 Power Quality Meter Applications

  • Sub-metering electrical panel
  • Equipment load monitoring
  • Industrial applications
  • Predicted maintenance
  • Renewable energy
  • Overhead cost reduction
  • NET ZERO buildings
  • LEED buildings
  • Green buildings
  • Refrigeration