GE Industrial Solutions EntelliGuard G Clusters - Manual

Clusters:
These are the main isolating contacts which are
fitted to the rear terminals on the moving portion
of the with drawable unit
As part of standard inspection and maintenance
procedures, cluster contacts have been
designed to be easily and quickly removed and
replaced using cluster pliers. These clusters are
mounted horizontally and vertically thru cluster
pads for different envelope sizes. The slot is
provided on the terminals for locking the
clusters. For higher current and short circuit
ratings the clusters are assembled parallel.
Table 1. Cluster Catalog and Ratings
Envelope
Size
Catalog #
Current
Rating
Envelope 1 G20NCLS 2000A
G20MCLS 2000A
Envelope 2
G32ECLS 3200A
Envelope 3 G64LCLS 6000A
DEH-41460 Installation Instructions
EntelliGuard ® G Circuit Breaker
Clusters :
Accessories
WARNING: Before installing any accessories,
turn the breaker OFF, disconnect it from all
voltage sources, and discharge the closing
spings.
AVERTISSEMENT: Avant d’installer tout
accessoire, mettre le disjoncteur en position
OFF, le déconnecter de toute tension
d’alimentation , et décharger les resorts
d’armement
Removal of Cluster assembly using cluster
pliers:
1. Turn the breaker off and discharge the
closing springs by depressing the OFF and
ON buttons in the sequence OFF-ON-OFF.
Verify that the breaker OFF-ON indicator
shows OFF on a green background and
that the charge indicator shows
DISCHARGE on a white background. If
installing in a draw-out type breaker
remove breaker from adaptor (cassette)
before continuing.
2. The breaker should be safely isolated and
fully removed from the cassette/panel.
3. Inspect the rear cluster contacts for signs
of overheating and wear and replace if
necessary.
4. Hold & position the cluster plier jaws on
the cluster fingers of the cluster finger
assembly at the rear ends.
5. Press the extended handles of the cluster
plier assembly such that the cluster
assembly becomes loose on the rear
terminals.
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