Busbar Compartment Access; View From Cable Compartment; Two Screws On Each Side - ABB UniGear ZS1 Installation, Operation And Maintenance Instructions Manual

A S S E M B L Y O F T H E S W I T C H G E A R O N S I T E

Busbar compartment access

Access to the busbar compartment is possible
either from the top of the panel after dismounting
the pressure relief plate after the dismounting of
the gas duct, or from the front of the circuit-breaker
compartment.
See figure 45 taken from cable compartment.
On each side there are two screws which must
be unscrewed (detail on fig. 46).
—
Figure 45 View from cable compartment
—
Figure 47 Front view on window among cable and
circuit - breaker compartment
After circuit-breaker has been withdrawn from the
panel, it is possible to remove the horizontal
partition.
After that, the partition can be dismantled and
taken out of the panel, which makes access to
busbars from the circuit-breaker compartment
easier.
—
Figure 46 Two screws on each side
—
Figure 48 Circuit- breaker compartment
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