WattNode Pulse Output kWh Transducer Connection Instructions
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Single-Phase Two-Wire with Neutral
This configuration is most often seen in homes and offices. The two wires are neutral and line. For these models, the
WattNode is powered from the
N
and
ØA
terminals.
Figure 2: Single-Phase Two-Wire Connection
Recommended WattNode Model
The following table shows the WattNode model that should be used, depending on the line to neutral voltage.
Line to Neutral Voltage
WattNode Model
120 VAC
WNB-3Y-208-P
Single-Phase Three-Wire
This configuration is seen in North American residential and commercial service with 240 VAC for large appliances. The
three wires are neutral and two line voltage wires with AC waveforms 180° out of phase; this results in 120 VAC between
either line wire (phase) and neutral, and 240 VAC (or sometimes 208 VAC) between the two line wires (phases).
Figure 3: Single-Phase Three-Wire Connection
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