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WattNode Branch Circuit kWh Transducer Sensor
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WattNode Branch Circuit kWh Transducer Sensor
EUCA Head Office
Clearwater Office Park
Parkhaven, Block H Ground Floor
Boksburg
Gauteng
1459
South Africa
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 only be used 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.
Highlighted Features
- Measures up to 3 separate branch circuits simultaneously, reducing complexity and cost
- Use with a wide choice of current transformers (sold separately); ratings from 5 to 1500 amps
- Accurate measurement of multiple single phases 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
Applications
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)
Specifications
| Specification | Detail |
|---|---|
| Wye Configuration Ranges | 120, 208, 240 Volts AC - Neutral required |
| Configurations | - 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 (accuracy varies with CT used and line variation, it 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 Temperature 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 |