Schneider Electric E4800 User Manual
930-110-01-B.00
PowerLogic
TM
EM4800 Series
04/2011
Installation
© 201
Schneider Electric All Rights Reserved
27
Installing the 5A CTs on the PowerLogic EM4805
Use the two 12-pair wiring harnesses provided with the meter to connect the
5A CTs to the PowerLogic EM4805.
5A CTs to the PowerLogic EM4805.
For wire color coding, see Table 3 or the label inside the outer cover of the
meter. Follow these instructions to install the 5A CTs on the PowerLogic
EM4805.
meter. Follow these instructions to install the 5A CTs on the PowerLogic
EM4805.
Do not apply power until you have made these connections and followed all
instructions below:
instructions below:
•
Connect all CTs to shorting blocks to the appropriate circuits
•
Connect the shorting blocks to the cables
•
Connect the cables to the PowerLogic EM4805
1.
Connect the two wiring harnesses to the PowerLogic EM4805.
The connectors are labeled Plug 1/Plug 5 to Plug 4/Plug 8 on the cable.
This is also labeled on the meter. Ensure the connectors are inserted
in the proper order and that the connectors are securely locked in place.
This is also labeled on the meter. Ensure the connectors are inserted
in the proper order and that the connectors are securely locked in place.
a.
Connect the first wiring harness to the Mate-n-Lok
TM
connectors
1 to 4, and secure the cables to the PowerLogic EM4805 chassis
with cable ties.
with cable ties.
b.
Connect the second wiring harness to the Mate-n-Lok
TM
connectors 5 to 8, and secure the cables to the PowerLogic
EM4805 chassis with cable ties.
EM4805 chassis with cable ties.
2.
Turn off the power feed to the panel where the CTs are being installed.
Always use a properly rated voltage sensing device to confirm the
power is off.
Always use a properly rated voltage sensing device to confirm the
power is off.
3.
Route the free end of the cable out of the meter enclosure through the
slot in the base of the chassis.
slot in the base of the chassis.
4.
Strip the plastic sheaths to an appropriate length to expose the wire
pairs. Cut and strip the wire pair leads to an appropriate length.
pairs. Cut and strip the wire pair leads to an appropriate length.
5.
Connect the wire pair leads from the meter to the CT shorting block.
See Table 3 for the color pair assignment of each meter point. Ensure
that the CT shorting block is in the shorted position.
See Table 3 for the color pair assignment of each meter point. Ensure
that the CT shorting block is in the shorted position.
6.
Connect the CT wire pair leads to the input of the CT shorting block.
See Table 3 for the color pair assignment of each meter point.
See Table 3 for the color pair assignment of each meter point.
7.
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).
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).
NOTE: The direction of the energy flow is indicated on the CT.
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
•
Turn off all power supplying this equipment before working on or
inside the equipment.
inside the equipment.
•
Always use a properly rated voltage sensing device to confirm the
power is off.
power is off.
•
NEVER open circuit a CT; use the shorting block to short circuit the
leads of the CT before removing the connection from the meter.
leads of the CT before removing the connection from the meter.
•
Do not crimp the insulation when making the wire connections.
Failure to follow these instructions will result in death or
serious injury.
serious injury.