3 current sensor installation & wiring – E-Mon E20-6003200J-G-KIT User Manual

Page 10

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GREEN CLASS METER

62-0415-01

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8. Using an AC Voltmeter, verify the input voltage readings are within the limits

specified below.

9. Remove power from the unit by de-energizing the external switch.

NOTE: For 3-Wire systems, the voltages are measured Phase to Phase. On 4-Wire

systems the voltages are measured Phase to Neutral.

4.3 Current Sensor Installation & Wiring

Once the AC voltages have been confirmed to be within acceptable limits, you are

ready to install the current sensors. The MAIN power board contains three header

connectors located at the bottom right of the board. The connectors are labeled A, B,

and C along with conductor color indication. This format must be followed in order for

the meter to function correctly.

The Green Class meter will be used with one of two basic types of current sensors:

a. Split-Core Current Sensor: This sensor opens so that it can be attached

around the circuit conductor being monitored without interrupting power.

Unless otherwise

specified, all Green Class meters are supplied with this sensor type.

b. Solid-Core Current Sensor: This sensor does not open and requires the

monitored conductor be removed from the circuit to install the current sensor.

This type is only supplied when specified at time of order.

NOTE: The unit serial label specifies if the unit is set up for split or solid core current

sensors. See ordering information for details.

Both types of current sensors output a 0-2 VAC signal proportional to the current being

measured.

The current sensors must be matched with the voltage phases. The A phase sensor

must be monitoring the same phase as the A phase voltage. B & C phase sensors

must also monitor the same phase as their respective voltage inputs.

Meter Input Voltage

Configuration

Nominal Voltage

Limits (+/- 10%)

120/208V, 3 Ph, 4 Wire

120 VAC (L-N)

108 to 132 VAC

277/480V, 3 Ph, 4 Wire

277 VAC (L-N)

249 to 305 VAC

240V, 3 Ph, 3 Wire

240 VAC (L-L)

216 to 264 VAC

480V, 3 Ph, 3 Wire

480 VAC (L-L)

432 to 528 VAC

347/600V, 3 Ph, 4 Wire

347 VAC (L-N)

540 to 660 VAC

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