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PowerLogic
TM
E4800 Series 930-110-01
Installation 02/2009
© 2009 Schneider Electric All Rights Reserved14
Installing the Current Transformers The three models of PowerLogic E4800 meter use current transformers
(CTs) with different secondary outputs. The PowerLogic E4833 meter uses
split-core 0.333V CTs (see Figure 8), and the PowerLogic E4880 meter uses
80mA CTs only (see Figure 9) and is typically used where accuracy is
important and long secondary CT wiring is required (up to 300 feet [91.44
meters]). For instructions, see “Installing CTs on the PowerLogic E4833 and
PowerLogic E4880” on page 15.
The PowerLogic E4805 uses 5A secondary CTs. For instructions, see
“Installing 5A CTs on the PowerLogic E4805” on page 18.
Current transformers connect to the PowerLogic E4833 and PowerLogic
E4880 meters through the 50-conductor CT cable provided with the meter.
Table 2 describes the CT wire pairs and the cable color scheme for each
meter point. You can also find this information on the inside of the meter’s
outer cover.
Each CT has a black (positive) and white (neutral) wire pair. Typically,
butt-splice connectors are used to attach the CT to a specific meter input.
The direction of the energy flow is indicated on the CT.
Figure 8: PowerLogic E4833 split-core 0.333V current transformer
3
1
2
THISSIDETOWAR
D
SSOUR
CE
Legend:
1 Source
2 Energy flow
3 Load