Section 6. Four-Wire Ground Fault Option; Neutral Sensor Outline For La-800 Breakers - GE MicroVersaTrip Plus Installation Instructions Manual

Conversion kits for allis chalmers, siemens/allis, and siemens la-800[f], and la-1600[f] gold low-voltage power circuit breakers

Hide thumbs Also See for MicroVersaTrip Plus:

Table of Contents

SECTION 6. 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 harness.

1. Mount the neutral sensor on the outgoing neutral

lead, normally in the bus or cable compartment

in the equipment. Figures 20 and 21 show the

sensor outlines for the 800 A and 1600 A frame

sizes, respectively.

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, 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 20. Neutral sensor outline for LA-800 breakers..

Table of Contents

Microversatrip pm