WattNode T-WNB-3Y-208 Connection Instructions Download Page 7

WattNode Pulse Output kWh Transducer Connection Instructions 

Page 7 of 7 

Separate Branch Circuits Connection (T-WNB-3Y-208-P** only) 

White (P1, P2, P3)

S-UCC-M00x

Pulse Input Adapters

Ou

tp

ut

P3

P2

P1

COM

A CT

B CT

C CT

Status

Status

Status

N

A

B

C

Black (COM)

LOAD

Branch Circuit 1

Neutral

LI

N

E

Source Faces

White

Black

White

Black

White

Black

Current Transformers

Branch Circuit 2

Branch Circuit 3

Ou

tp

u

t

P3

P2

P1

COM

CABLE-2.5-STEREO

Red wires 

not used

White (P1, P2)

Black (COM)

T-WNB-3Y-208-P**

Pulse Output kWh Transducer

Connect to

 Smart Sensor ports

R

WNB-3Y-208-P

Connect ground (   ) terminal from 

each UX120 terminal block to COM

Connect (+) terminals from UX120 

terminal blocks to P1, P2, and P3

Ou

tp

u

t

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 Node

Ou

tp

u

t

P3

P2

P1

COM

CABLE-2.5-STEREO

Red wires 

not used

White (P1, P2)

Black (COM)

HOBO UX90-001/M Data Loggers

 

Figure 7: Separate Branch Circuits Connection 

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

input adapter (if used with H21, H22, U30, or RX3000 data loggers) or a CABLE-2.5-STEREO (if used with ZW data 
node or UX90 logger pulse ports) is required for each circuit monitored. A three-branch circuit arrangement is shown for 
H21, H22, U30, RX3000, and UX120 data loggers. 

 

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...

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