Datasheet

WNMB-11.20.17: Specications are subject to change
2150 Miller Drive, Suite A • Longmont CO 80501 • USA
[e-mail] • www.ctlsys.com
[phone] • Fax [phone]
Quantities Measured
• True RMS Power: watts, per phase and sum
• Reactive Power: VARs, per phase and sum
• Power Factor: Phase, per phase and average
• True RMS Energy: kWh per phase and sum
• Reactive Energy: VAR hours, sum
• Frequency
• RMS voltage per phase
• RMS current per phase
• Demand and peak demand
Accuracy
• 0.5% nominal (see manual for details)
Electrical
• Operating Voltage Range: 80% to 115% of nominal
• Power Line Frequency Range: 50 to 60 Hz
Environmental
• Operating Temperature: -30°C to +75°C (-22°F to 167°F)
• Humidity: 5 to 90% RH (non-condensing)
Mechanical
• Enclosure: high impact, ABS plastic
• Flame Resistance Rating: 94V-0, IEC FV-0
• Size: 5.63” × 3.34” × 1.5” (143mm × 85mm × 38mm)
• Weight: 10.8 oz (305 gm)
• Connectors: euroblock style pluggable terminal blocks
Modbus Communication
• EIA RS-485 interface
• Baud Rates: 9,600, 19,200 and 38,400 (Opt 38K)
• Duplex: half (two-wire plus common)
• Parity: N81 (no parity, eight data bits, one stop bit)
E81 (even parity, Opt EP)
• Modbus Buffer: 256 bytes
• Response Time: 5 to 300 milliseconds
Regulatory
• FCC Class B, EN 55022 Class B
• UL and cUL Listed (UL 61010-1)
• CE Mark and RoHS compliant
• Immunity: EN 61326, (industrial locations)
WATTNODE
®
MODBUS
WattNode® Wiring Diagram, Three Phase Example
Accu-CT® Split-Core CTs
• Safe, low voltage output, 0.333 Vac
• Primary Ratings: 5 to 600 amps,
600 Vac, 50 or 60 Hz
• UL & cUL, CE, RoHS compliant
• 0.75” and 1.25” opening
• High accuracy options C0.6, C0.3
Standard Split-Core, Solid-Core
and Bus Bar Series CTs
• Safe, low voltage output, 0.333 Vac
• Multiple Models: 5 to 6000 amps,
600 Vac, 50/60 Hz nominal
• UL & cUL, CE, RoHS compliant
• Custom sizes available
Rogowski CTs
• Safe, low voltage output, 0.333 Vac
• Multiple Diameters: 3.1", 4.5", 7.5", 12"
• Primary Ratings: 250 to 6000 amps
• UL & cUL, CE, RoHS compliant