GE Industrial Solutions ProTrip Conversion Kits LA-600, LA-800, and LA-1600 - Manual (Page 11)

11
SECTION 5. FOUR-WIRE GROUND
FAULT OPTION
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 har ness.
1. Mount the neutral sensor on the outgoing neu-
tral lead, normally in the bus or cable compart-
ment in the equipment. Figure 12 shows the
sensor outlines for the 600 A and 800 A frame
sizes. Figure 13 shows the sensor for the 1600 A
frame size.
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 wiring harness, routed through the rear of
the breaker with the CT wires. The wires should
be tied to the breaker frame in an easily
accessible location.
Figure 12. Neutral sensor outline for LA-600 and LA-800 breakers..