Schneider Electric EM4000 manual Delta service metering

930-134-01-A.00	PowerLogicTM Series EM4000
11/2013	Installation Guide

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

2

1

9

3 4 5

8

7

6

Legend:

1BX 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

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