WattNode T-WNB-3Y-208 Connection Instructions Download Page 2

WattNode Pulse Output kWh Transducer Connection Instructions 

Page 2 of 7

 

UCC-M00x pulse input adapter (for H21, H22, U30, or RX3000 series) or CABLE-2.5-STEREO (for pulse input-
compatible ZW series) is required (at output terminal P2). 

 

The T-WNB-3Y-208-P can measure two or three separate branch circuits simultaneously. Note that an S-UCC-M00x 

pulse input adapter (for H21, H22, U30, or RX3000 series) or a CABLE-2.5-STEREO (for pulse input-compatible ZW 
series) is required for each circuit monitored. 

Note:

 Refer to the 

WattNode WNB Series Installation and Operation Manual

 for details of these features. 

Configuring the System 

To configure the system, refer to the applicable connection diagram that corresponds to your electrical power configuration. 
Also refer to the WattNode manual for additional configurations. 

White

Black

S-UCC-M00x

Pulse Input Adapter

Ou

tp

ut

P3

P2

P1

COM

White

Black

Connect to

 Smart Sensor port

Connect to 

pulse port

HOBO H21, H22, or U30 Series Data Logger

(H22-001 shown)

CABLE-2.5-STEREO

HOBO ZW Series Wireless Data Node

Ou

tp

ut

P3

P2

P1

COM

HOBO UX120 Series Data Logger

Connect ground (   ) terminal from 

UX120 terminal block to COM

Connect (+) terminal from 

UX120 terminal block to P1

Ou

tp

ut

P3

P2

P1

COM

Customer-supplied 

22 AWG twisted pair

HOBO UX90-001/M Data Logger

Ou

tp

ut

P3

P2

P1

COM

White

Black

Red wire

not used

CABLE-2.5-STEREO

Red wire

not used

 

Figure 1: Connecting HOBO Data Logger or Data Node to WattNode 

Electrical Service Types 

Below is a list of service types, with connections and recommended WattNode models. Note: the WattNode ground 
connection improves measurement accuracy, but is not required for safety. 

Model Type 

Phase to 

Neutral 

Phase to 

Phase 

Electrical 

Service Types* 

WNB-3Y-208-P Wye 120 

VAC 

208–240 

VAC 

1 Phase 2 Wire 120V with neutral 
1 Phase 3 Wire 120V/240V with neutral 
3 Phase 4 Wire Wye 120V/208V with neutral 

WNB-3D-240-P 

Delta 

or Wye 

120–140 

VAC 

208–240 

VAC 

1 Phase 2 Wire 208V (No neutral) 
1 Phase 2 Wire 240V (No neutral) 
1 Phase 3 Wire 120V/240V with neutral 
3 Phase 3 Wire Delta 208V (No neutral) 
3 Phase 4 Wire Wye 120V/208V with neutral 
3 Phase 4 Wire Delta 120/208/240V with neutral 

WNB-3D-480-P 

Delta 

or Wye 

277 VAC 

480 VAC 

3 Phase 3 Wire Delta 480V (No neutral) 
3 Phase 4 Wire Wye 277V/480V with neutral 
3 Phase 4 Wire Delta 240/415/480V with neutral 

*The wire count does NOT include ground. It only includes neutral (if present) and phase wires. 

HOBO H21, H22, U30, or RX3000 Series 

Data Logger (H22-001 shown) 

Shop for Data Logging products online at:   

www.

DataLoggerStore

.ca   

1.800.561.8187

Summary of Contents for T-WNB-3Y-208

Page 1: ...kWh transducer to the power source and other transducer details refer to the WattNode documentation provided by Continental Control Systems Required Selected WattNode Pulse Output kWh Transducer Appr...

Page 2: ...UX120 terminal block to P1 Output P3 P2 P1 COM Customer supplied 22 AWG twisted pair HOBO UX90 001 M Data Logger Output P3 P2 P1 COM White Black Red wire not used CABLE 2 5 STEREO Red wire not used Fi...

Page 3: ...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 comme...

Page 4: ...this configuration the WattNode is powered from the A and B phase A and phase B terminals For best accuracy we recommend connecting the WattNode N neutral terminal to earth ground This will not cause...

Page 5: ...e Models The following table shows the WattNode model that should be used depending on the line to neutral voltage and line to line voltage also called phase to phase voltage Line to Neutral Voltage L...

Page 6: ...and ground If you see a reading between 0 and 5 VAC that leg is probably grounded The WattNode will correctly measure circuits with a grounded leg but the measured voltage and power for the phase will...

Page 7: ...d P3 Output P3 P2 P1 COM Connect to pulse port Customer supplied 22 AWG twisted pairs HOBO H21 H22 or U30 Series Data Logger H22 001 shown HOBO UX120 Series Data Logger HOBO ZW Series Wireless Data No...

Reviews: