GE Industrial Solutions ProTrip Conversion Kits AK-1-15 and AK-1-25 - Manual (Page 12)

SECTION 5. FOUR-WIRE GROUND
FAULT OPTION Configuring the Trip Unit
See DEH-40034 for detailed instructions for setting up
ProTrip trip units.
The ground fault option for four-wire installations
requires the installation of an additional current
sensor on the neutral bus in the equipment. The
sensor is connected to the trip unit through the
connector provided in the wiring harness.
1. Mount the neutral sensor on the outgoing neutral
lead, normally in the bus or cable compartment in
the equipment. Figure 17 shows the outline of the
neutral sensor.
2. Connect the neutral sensor wire harness to the
correct taps on the sensor. To maintain the same
polarity as the phase sensors, connect the white
wire to the common terminal, black to the tap.
3. Route the wires through the equipment and con-
nect to the two-pin connector on the trip unit wir-
ing harness. The wires should be tied to the
breaker frame in an easily accessible location. It
may be located with the communication harness.
Figure 17. Neutral sensor outline.
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