Schneider Electric EM4000 User Manual

©2013 Schneider Electric All Rights Reserved

11

The sense voltage (A, B, C, N) provides phase voltages for metering. The 
configuration depends on the type of service being metered:

• see “For a single-phase panel with the 120V variant of the meter:” on page 13
• see “For a 208Y/120V three-phase wye panel with the 120V variant of the 

• see “For a 480Y/277V three-phase wye panel with the 277V variant of the 

• see “For a 600Y/347V or higher three-phase wye panel with potential 

• see “For a three-phase Delta panel with the 120V variant of the meter:” on page 

The PowerLogic EM4033 and EM4080 meters are shipped from the factory with a 
control voltage jumper that can be used to connect the control voltage input and the 
sense voltage inputs to provide control voltage to the unit. The following procedures 
explain how to connect the sense voltage inputs for each of the service types.

For a single-phase panel, use a 3-wire (red, black, white), 14 AWG (1.63 mm

2

), 

90

o

C (194

o

F) cable. For a three-phase panel, use a 4-wire (red, black, blue, white), 

14 AWG (1.63 mm

2

), 90

o

C (194

o

F) cable. For a Delta service, use a 3-wire (red, 

black, blue), 14 AWG (1.63 mm

2

), 90

o

C (194

o

F) cable. Metallic, flexible armored 

cable (BX cable) is recommended for commercial installations as shown in Figure 5 
on page 13.

The PowerLogic meters must be connected to the sense voltage and control 
voltage through a properly rated disconnect that disconnects all line and neutral 
wires, so it can be powered down. The disconnect must be located within easy 
reach of the meter operator, and must be labeled as such. Opening the disconnect 
or breaker is the disconnect device. For multiple PowerLogic meter installations, 
the same disconnect can be used to power all meters, and must be labeled for all 
meters it supplies power to. The disconnect device must meet IEC 60947-1, IEC 
60947-3 and/or comply with the local electrical code.