Schneider Electric E4800 User Manual
930-110-01-B.00
PowerLogic
TM
EM4800 Series
04/2011
Installation
© 201
Schneider Electric All Rights Reserved
23
1.
Connect the 50-pin connector to the PowerLogic connector located at
the bottom side of the unit, and secure it in place with the retaining clips.
the bottom side of the unit, and secure it in place with the retaining clips.
2.
Feed the free end of the cable through the bottom left of the meter
enclosure.
enclosure.
This cable is made up of twisted-pair wires for connecting the individual
CTs to the metered points. The color codes for the X1 (positive) and X2
(neutral) connections for each CT are listed in Table 2 on page 26.
CTs to the metered points. The color codes for the X1 (positive) and X2
(neutral) connections for each CT are listed in Table 2 on page 26.
NOTE: The direction of the energy flow is indicated on the CT.
3.
Turn off the power feed to the panel where the CTs are being installed.
Always use a properly rated voltage sensing device to confirm power is
off.
Always use a properly rated voltage sensing device to confirm power is
off.
4.
Feed the CT cable into the panel through an appropriate punch-out with
an approved strain relief.
an approved strain relief.
5.
Strip the plastic sheaths on the cable to an appropriate length to expose
the wire pairs. Cut and strip the CT leads and wire pair leads to an
appropriate length. Crimp the CT leads to the wire pairs for each meter
point.
the wire pairs. Cut and strip the CT leads and wire pair leads to an
appropriate length. Crimp the CT leads to the wire pairs for each meter
point.
6.
Connect the X1 lead of the CT to the X1 lead of the cable, then connect
the X2 lead of the CT to the X2 lead of the cable (see Table 2).
the X2 lead of the CT to the X2 lead of the cable (see Table 2).
7.
When using solid-core CTs, remove the feed wire from the circuit
breaker, place the CT over the wire, and reconnect to the circuit
breaker. Ensure that the arrow on the CT label is pointing in the
direction of the energy flow (toward the load).
breaker, place the CT over the wire, and reconnect to the circuit
breaker. Ensure that the arrow on the CT label is pointing in the
direction of the energy flow (toward the load).
8.
When using split-core CTs, separate the halves of the CT and place the
CT over the wire to the circuit breaker. Ensure that the CT is facing the
source as shown on the label. Install cable ties to ensure that the CT
halves are held together securely.
CT over the wire to the circuit breaker. Ensure that the CT is facing the
source as shown on the label. Install cable ties to ensure that the CT
halves are held together securely.
9.
Repeat steps 5 to 8 for the remaining CTs.
Installing 5A Converters and CTs on the PowerLogic EM4880
When both low-current (200A and 400A) and high-current (600A or higher)
circuits need to be measured with the same PowerLogic meter, converters
are available to allow the use of Measurement Canada approved 5A CTs
with the appropriate current rating. 5A CT converters transform the 5A
maximum output from a standard CT to the 80mA maximum of the
PowerLogic meter.
circuits need to be measured with the same PowerLogic meter, converters
are available to allow the use of Measurement Canada approved 5A CTs
with the appropriate current rating. 5A CT converters transform the 5A
maximum output from a standard CT to the 80mA maximum of the
PowerLogic meter.
The 5A side of the converter is the black and red wire pair, and the 80mA side
of the converter is the black and white wire pair.
of the converter is the black and white wire pair.
NOTE: It is recommended that 5A converters and shorting devices be
installed in a sealable metal enclosure.
installed in a sealable metal enclosure.