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5.5 Wiring in a 3 Phase, 4-Wire Service Panel
Single-phase
branch loads
L1-N
4-wire, 3-phase
WYE load
(Neutral current)
L1-N, L2-N, L3-N
Connect the
Neutral wire
or Ground wire
to V INPUT 1 (N)
on the meter.
Meter Power
Connect all phases
to V INPUT 1
terminal.
(Label as disconnect)
3-wire, 3-phase
Delta load
(no possibility of
neutral current)
L1-N, L2-N(est), L3-N
NOTE: The VerifEye
®
meter uses the NEUTRAL terminal as a voltage reference. For
systems without a neutral conductor, it is recommended to connect a ground wire
to this terminal. If the neutral terminal is left open, L-L measurements are accurate,
but L-N measurements may not be symmetric. If a ground wire is connected to the
NEUTRAL terminal, <2 mA ows into the ground wire.
CT
CT
CT
CT
CT
CT
WARNINGS:
• TO AVOID FIRE, SHOCK, OR DEATH; TURN OFF POWER at circuit breaker or
fuse and test that power is OFF before wiring!
• HIGH-VOLTAGE WIRES MAY BE PRESENT. To be installed by an electrician or
qualied personnel only.
3-wire, 3-phase used on
MAINS L1-N, L2-N, L3-N
(RǀCoil Coils shown)
5 METER INSTALLATION