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KW320

Power Meter

Models In Stock
  • Revenue-grade power monitoring: KW320 meters deliver 0.1 class accuracy for high-confidence energy measurement in tenant billing, sub-metering, and energy management applications.
  • 4-channel measurement capability: Supports L1, L2, L3, and neutral current inputs for detailed three-phase power monitoring and neutral current visibility.
  • Advanced power quality analysis: Measures voltage/current THD, harmonics up to the 63rd, crest factor, K-factor, phase angle, and voltage/current unbalance.
  • Flexible CT compatibility: Field-selectable inputs support both 333 mV current transformers and Rogowski coil CTs for retrofit and new-construction projects.
  • Built for modern integration: Supports RS-485 Modbus RTU, BACnet MS/TP, Ethernet protocols, Wi-Fi, webserver access, SNMP, SMTP email, FTP, and other networked monitoring options.
  • Comprehensive data capture: Provides real-time metering, bidirectional kWh/kvarh, demand forecasting, peak demand, max/min records, alarms, and 8 GB onboard data logging.
  • Ideal for demanding facilities: Suited for data centers, industrial applications, renewable energy, LEED/green buildings, refrigeration, equipment load monitoring, and overhead cost reduction.
  • Flexible installation options: Mounts in 4" round or IEC 92 mm DIN square openings, with optional DIN rail adapter and NEMA 4X prewired panel upgrade for retrofit projects.
  • Certified and durable: cULus Listed, BTL Certified, CE, and RoHS2 compliant, with a UL94V-0 polycarbonate enclosure and ACI five-year limited warranty.
KW320
From $ 1,186.00
Models In Stock
Power Meter KW320 KW320
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Product Overview
  • Accuracy 0.1 Class
  • Applications Building and Maintenance, Control Panel, Environmental Monitoring, Industrial and Manufacturing
  • Baud Rate 9600, 19200, 38400, 76800
  • Compliance Note Measurement Standard: IEC 62053-22; ANSI C12.20 Environmental Standard: IEC 60068-2 Safety Standard: IEC 61010-1, UL 61010-1, IEC 61557-12 EMC Standard: IEC 61000-4/-2-3-4-5-6-8-11, CISPR 22, IEC 61000-3-2, IEC 61000-6-2/4 Outlines Standard: DIN 43700, ANSI C39.1
  • Connection Note Two pluggable pre-cut holes to feed wiring, fused terminal blocks for voltage connections pre-installed, color-coded and labelled
  • Data Format 8 data bits:no parity:1 stop bit
  • Data Interface Modbus, BACnet MS/TP, BACnet Over IP, IEC 61850, Modbus®-TCP, HTTP/HTTPs Webserver, SMTP Email, SNMP, HTTP/HTTPs Push, FTP Post, sFTP Server, WiFi
  • Display Type LCD
  • Electrical Connection Screw Terminal
  • Enclosure Material Flame retardant polycarbonate
  • Enclosure Ratings IP66, NEMA Type 4X
  • Frequency 50/60 Hz
  • Fuse Rating 600 VAC/1A
  • Height 7.34 in
  • Impedance Input 2MΩ/Phase
  • Input_Current Note 120% of current sensor rating (mV CTs) to maintain accuracy. Up to 6000 Amps w/ Rogowski Coils
  • Length 7.88 in
  • Materials Polycarbonate
  • Memory Backup 8 GB Datalogging
  • Mounting ANSI C39.1 (4” Round) or an IEC 92mm DIN (Square) form
  • Network and Communications BACnet Device Instance Number: 1 (Default); Field adjustable from 1 to 4194302; Max Station: 127 MS/TP Masters (MAC Addresses is 0 to 127); Supported Baud Rates: BACnet MS/TP Protocol: 9600, 19200, 38400, 76800 Baud Rate (38400 BACnet Default) Modbus RTU Protocol: 1200, 2400, 4800, 9600, 19200, 38400 Baud Rate (19200 Modbus Default)
  • Number of Channels Note 4 Channels, 0.400 VAC max, 333 mV CTs or 0 to 6000 Amps with Rogowski Coils (Field Selectable); Voltage Channels : 400 Volts AC (L-N), 690 VAC (L-L), 45Hz - 65Hz, 300Hz - 500Hz
  • Number of Inputs 4
  • Operating Distance, Max 1200 m
  • Operating Humidity 5 to 95% RH, non-condensing
  • Operating Temperature, Max 158 °F
  • Operating Temperature, Min -13 °F
  • Operating Voltage, Min 10 V
  • Power Consumption 5 W
  • Protection External 1A/250VAC Fuse
  • Resolution 63rd Harmonic (50Hz or 60Hz type) or 15th Harmonic (400Hz type)
  • Series ID KW320
  • Software Acuview Utility Software, Windows Based; (USB-RS485 converter is required to connect to computer)
  • Storage Temperature, Max 185 °F
  • Storage Temperature, Min -40 °F
  • Supply Voltage 100 to 415 Vac, 100 to 300 Vdc
  • Termination 120 to 300 Ω
  • Update Rate Accumulated Parameter Update Rate: 1 sec ; Real Time Parameter Update Rate: <20 ms
  • Voltage Measurement Range 100 to 400 Vac (L-N), 100 to 690 Vac (L-L), 100 to 400 Vac rms (1 phase)
  • Weight 8 lb
  • Width 11.81 in
  • Wire Gauge 22 to 14 AWG
  • Withstand Voltage 3250 Vac

Supported Applications

The ACI KW320 Series Power Meter is a multifunction power meter designed for monitoring and analyzing electrical power systems. The series provides detailed measurements including power factor, load percentage, energy consumption (kWh), and harmonic analysis. It is intended for use in industrial and commercial applications requiring precise power monitoring and data logging.

Operating Conditions & Performance

The KW320 Series features a digital display with navigation keys to view real-time electrical parameters. Documented measurement capabilities include Power Factor readings (e.g., 0.968 - 0.975), Load percentage monitoring, and Energy consumption tracking in kWh.

Configuration Options

The series supports communication via Ethernet using the included AXM-WEB2 module. Key configurable capabilities include:

  • Communication Protocol: Modbus-TCP over Ethernet (RJ45 connector).
  • User Interface: Web interface accessible via HTTP/HTTPS.
  • Housing Material: Black plastic enclosure as shown in documentation images.

Key Product Differences

The KW320 Series is available with specific model configurations indicated by suffixes such as "-PC" and "-XX" within the part numbers (e.g., KW320-P1-D-W-PC, KW320Q-P1-D-W-XX). The series includes variants designated as KW320 and KW320Q. All listed configurations include the AXM-WEB2 Ethernet module.

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