Schneider Electric E4800 manual Delta service metering, Phase B CT is optional

PowerLogicTM EM4800 Series	930-110-01-B.00
Installation	04/2011
	Delta service metering
	To use the PowerLogic EM4800 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. Using the
	phase B CT is optional.

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 11)

Figure 11: PowerLogic EM4800 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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