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930-134-01-A.00 PowerLogic
TM
Series EM4000
11/2013 Installation Guide
©2013 Schneider Electric All Rights Reserved 17
Delta service metering
To use the PowerLogic EM4000 meter in a Delta service, the line-to-line voltage
from the Delta service must be reduced to 120V line-to-line using appropriate
potential transformers. Metering a Delta service requires only two potential
transformers, and only two CTs for phase A and C.
For a three-phase Delta panel with the 120V variant of the meter:
• Connect meter terminal A to the voltage disconnect phase A (red wire)
• Connect meter terminal C to the voltage disconnect phase C (blue wire)
• Connect meter neutral terminal to meter terminal B (black wire)
• Connect earth wire to earth post using lug provided (see Figure 9)
Figure 9: PowerLogic EM4000 meter three-phase Delta service connection
8
4
5
6
9
2
1
3
7
Legend:
1 BX cable
2 Earth
3 Phase C (blue)
4 Phase B (black)
5 Shorting jumper
6 Sense voltage terminal block (J3)
7 J3-B to J3-N shorting wire
8 Phase A (red)
9 0.75-inch (1.9-cm) strain relief