WattNode 208-240VAC 2 or 3 Branch Circuit kWh Transducer Sensor
T-WNB-3Y-208-P WattNode 208-240VAC 2 or 3 Branch Circuit kWh Transducer Sensor
  • T-WNB-3Y-208-P Image 1
Part # T-WNB-3Y-208-P

WattNode 208-240VAC 2 or 3 Branch Circuit kWh Transducer Sensor


The WattNode sensor provides accurate kWh measurement at a low cost to meet your needs for sub-metering, net-metering, energy management, and performance contracting applications.

This WattNode kWh Transducer works with Magnelab AC Current Transformers and a Pulse Input Adapter, or a HOBO® Data Node pulse input port to provide True RMS kilowatt hours of energy used, even for loads with non-sinusoidal waveforms. Because these sensors tie directly into the line, they should be used only by qualified personnel. This model supports up to 3 separate 120 VAC single-phase branch circuits or individual 120 VAC phases of a 3-phase wye-connection 208/240 VAC circuit.

  • Measures up to 3 separate branch circuits simultaneously, reducing complexity and cost.
  • Use with wide choice of current transformers (sold separately) - ratings from 5 to 1500 amps.
  • Accurate measurement of multiple single phase or each phase of 3-phase configurations.
  • Easy to install and wire.
  • Individual pulse outputs for each circuit - compatible with pulse input logger models.
  • Small size - can be installed in existing service panels or junction boxes.
  • Diagnostic LEDs - confirms proper installation for all phases.
  • Line powered - no external supply required.
  • Detachable terminal blocks - easy to install and remove.

In what environment does this sensor operate?

This sensor operates in an indoor environment.

What measurements does this sensor support?

The T-WNB-3Y-208-P sensor supports the following measurement: Kilowatt Hours (kWh)

The country of origin for this product is the United States. To see the full specifications for this product, please see our product manual found under the documentation tab if available.

Wye configuration ranges: 120, 208, 240 Volts AC - Neutral required
   1 Phase 2 Wire 120V (with neutral)
   1 Phase 3 Wire 120V/240V
   3 Phase 4 Wire 120V/208V 
Rating: FCC Class A
Operating: voltage range: ±20% of nominal
Frequency: 60 Hz
CT input: 0-0.5 VAC operating, 3 VAC maximum
Accuracy: ±0.45% of reading + 0.05% FS through 25th harmonic (dependent on CT used and line variation accuracy could be 1.5% to 4% of reading)
Enclosure: High impact, UL rated ABS plastic
Connectors: UL, cUL recognized, detachable screw terminals (14 AWG), 600V
Operating temp range: -30 to 60°C (-22 to 140°F)
Operating humidity range: 0 to 90% RH, non-condensing
Dimensions: 8.5 cm x 14.3 cm x 3.8 cm (3.3 in. x 5.6 in. x 1.5 in.)
Weight: 295 g (10.4 oz.)
Number of data channels: 3

Note: To download the manual from Continental Control Systems LLC click here.

Click here to view a typical installation

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