52
5 . I N s Ta L L I N G a N D r em ov I N G C I r C u I T b r e a k er s
—
Fig. 5.3
Attaching lifting
beam to entelliguard
circuit breaker
—
Fig. 5.4
Alignment of
entelliguard circuit
breaker with cassette
—
Fig. 5.5
Entelliguard circuit
breaker positioned on
cassette draw-out rails
—
Fig. 5.3
—
Fig. 5.4
—
Fig. 5.5
1. Lifting Beam
2. Breaker Lifting Device Hook
3. Carabineers
4. Circuit Breaker Lifting Tabs
5. Envelope 1 Carabineer Position
6. Envelope 2 Carabineer Position (shown)
1. Circuit Breaker Side Frame
2. Cassette Groove
1. Circuit Breaker Wheels
2. Cassette Draw-out Rails
Note: Envelope 1 and 2 circuit breakers share
a common lifting beam. The lifting beam has
two unique positions for the carabineers to
properly lift each of these circuit breakers as
detailed in Fig. 5.3.
1
3
5
6
4
2
Catalog number
Poles
Description
GLD3F12
3
Envelope 1 or 2 lifting beam
GLD3F3
Envelope 3 lifting beam
GLD4F12
4
Envelope 1 or 2 lifting beam
GLD4F3
Envelope 3 lifting beam
Table 5.3 - EntelliGuard lifting beams
4. Using the switchgear breaker lifting device or a
suitable lifting mechanism and the appropriate
lifting beam, raise the breaker above the
elevation of the breaker compartment rails.
Warning: Do not stand under the circuit breaker
during the lifting or lowering operation.
Avertissement: Ne restez pas sous le disjoncteur
pendant l'opération de levage ou de descente.
1
1
2
2
5. Fully withdraw the rails to their stops.
6. Slowly lower and guide the circuit breaker to
align with the breaker compartment. Prior to
lowering the circuit breaker onto the rails, be sure
the breaker metallic side frames, Figs. 5.4 and 5.6
are aligned with the grooves in the cassette.
7. With both sides of the circuit breaker aligned
with the grooves in the cassette, slowly lower and
guide the breaker to allow the 4 breaker wheels to
align with the rails. See Fig. 5.5. Remove the
lifting beam. The breaker is now positioned on
the draw-out rails.
