The Advanced Pulse WattNode is a true RMS AC watt-hour transducer with pulse output (solid state relay closure) proportional to kWh consumed. The WattNode provides accurate measurement at low cost to meet your needs for sub-metering, net-metering, energy management, and performance contracting applications. The complete Pulse Output family measures 1, 2, or 3 phases in 2, 3, or 4 wire configurations. With voltage ratings from 120 to 600 Vac and current transformer (CT) ratings from 5 to 6000 amps, there is a WattNode combination to meet your AC power measurement requirements.

• Low-Cost
• kWh Transducer / Submeter
• Multi-Color Diagnostic LEDs
• Bidirectional Outputs
• Perfect for Net Metering

Model	VAC Phase to Neutral	VAC Phase to Phase	Electrical Service Types	Neutral Required
WNB-3Y-400-P	230	400	1 Phase 2 Wire 230V with neutral 3 Phase 4 Wire 230V/400V	Yes
WNB-3D-400-P	See Below	400	3-Phase 3-Wire Delta 400V (No neutral) 3-Phase 4-Wire Wye 230/400V

• Delta models, WNB-3D-400-P, work either with or without a neutral connection, but require a line-to-line voltage connection for operating power.

Diagnostic LEDs

Our diagnostic LEDs provide a per-phase indication of power (green flashing) and negative power (red flashing) to help troubleshoot connection problems, like swapped CTs, or excessive line voltage. See the manual for a full description.

Advanced Output Capabilities are available as factory options:

• Standard output provides pulses on one terminal for positive energy and on another terminal for negative energy. This is useful with solar panels, where energy taken from the grid and energy fed to the grid can be metered separately with one meter (net metering).
• For more information on available options click the Options tab.

Keys Features and Benefits

• Pulse output—Compatible with energy management systems and data loggers.
• Nominal 0.5% accuracy (see manual for details)
• Small size—Can be installed in existing service panels or junction boxes.
• Bidirectional metering—Net metering for PV (photovoltaic) solar and wind power generation with only one meter.
• Advanced metering design—Enables metering of inverters and variable frequency drives.
• Safe CTs—Integral burden resistor limits the output to low voltage.
• Line powered—No external supply required.
• Detachable terminal blocks—Easy to install and remove.
• UL, cUL Listed—Designed and tested for safety and use throughout North America.
• CE Mark—Can be installed throughout the EU.
• The optional LCD display module remotely displays energy in Wh, kWh, or MWh; or power in W or kW
• Small form factor for easy installation inside most electrical panels, see a sample installation diagram
• Assembled in USA, qualified under the Buy American provision in the American Recovery and Reinvestment Act of 2009 (ARRA).
• Five year warranty

Safety Note

Warning: Hazardous Voltages – Only qualified personnel or licensed electricians should install the WattNode meter and current transformers.

WattNode Pulse – Options

The WattNode® Pulse and WattNode Revenue Pulse meters are available with several factory options at an additional charge.

Option P3 – Per-Phase Outputs
Option P3 provides three separate pulse output streams, one pulse output channel per measurement phase, which can be used to monitor each phase of a three-phase circuit independently or to monitor three separate single-phase circuits with one WattNode meter.

To see additional options or have help in building full model selections, use the WattNode Pulse – Model Selector on the CCS website, or contact one of our experienced team members today for assistance.

 

 

 

Electrical	Line powered
	Operating Voltage Range: –20%, +15% of nominal
	Power Line Frequency: 50 or 60 Hz
	CT Input: 0.333 Vac nominal, 3 Vac maximum
Pulse Output	Output waveform: square-wave, 50% duty cycle
	Optoisolator (phototransistor) output handles up to 60 Vdc at 1µA (microamp) to 5 mA (milliamp).
	Fully isolated to withstand 5000 volts
Frequencies at Full Scale Power	Standard (All Models): 4.00 Hz
	Custom (Standard Bidirectional Outputs): 0.01 Hz to 600 Hz
	Custom (Option P3, Option PV): 0.01 Hz to 150 Hz
Accuracy	Accuracy: ±0.50% of reading
	Line voltage: 80% to 120% of nominal
	Power factor: 1.0
	Frequency: 48 – 62 Hz
	Ambient Temperature: 25°C
	Current: 1.5% to 100% of rated current
Regulatory	FCC Class B, EN 55022 Class B
	UL and cUL Listed (UL 61010-1)
	CE Mark and RoHS
	Immunity: EN 61326: 2002 (Industrial Locations)
Environmental	Operating Temperature: –30°C to +55°C (–22°F to 131°F)
	Humidity: 5 to 90% relative humidity (RH) up to 40°C, decreasing linearly to 50% RH at 55°C.
Enclosure	High impact, ABS plastic
	Flame Resistance Rating: 94V-0, IEC FV-0
	Size: 6.1 × 3.35 × 1.5 in. (155 × 85 × 38.1 mm)
	Weight: 10.4 oz (295 g)
Connectors: Euroblock style pluggable screw terminal blocks	Green: 22 to 12 AWG (1.0 to 3.2mm), 600 V
	Black: 22 to 12 AWG (1.0 to 3.2mm), 300 V