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E31 Series Installation Guide
Installation (cont.)
Figure 10
CT Input
(0 to 0.333
Vac)
Wiring
Z205667-0G
Page 15 of 23
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Panel 1
±
I1
±
I2
±
I3
±
IN
Set up Modbus registers 115-118 for CT scaling.
Use base + 1 address for Panel 2 setup.
Note: (+) represents black, (-) represents white
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR
ARC FLASH
• While removing or installing panels and covers, assure that
they do not contact an energized bus.
• NEVER bypass external fusing.
• NEVER short the secondary of a potential transformer.
• Before closing covers and doors, carefully inspect the work
area and remove any tools, wire scraps or other objects that
may have been left inside the equipment.
Failure to follow these instructions will result in death
or serious injury.
For all steps in this section, when tightening terminals, apply the correct torque.
Aux CT inputs on main board: 3.5 to 4.4 in-lb (0.4 to 0.5 N-m); removable connectors on main board: 4.4 to 5.3 in-lb (0.5 to 0.6
N-m); terminals on Branch CT adapter boards: 1.9 to 2.2 in-lb (0.22 to 0.26 N-m).
Figure 8
1. Connect 2-wire 90 to 277 Vac power to the main power terminals. Observe polarity. For the E30A and E30B, connect voltage
lines to the voltage taps (Figure 9). Provide overcurrent protection and disconnecting means to protect the wiring. Use Veris
AH02, AH03, AH04, or equivalent. Suggested: 0.5 A, time delay fuses.
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Other companies' trademarks are hereby acknowledged to belong to their respective owners.
Panel 2
I1
I2
I3
IN
–
+
TM
CT Input
(0 to 0.333
Vac)
0815
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