I.
B.
694C694-02
4. Always insure that drawout breakers are
in
one of
their designed cell positions, such as Connected,
Test, Disconnected or Withdrawn. A breaker permit-
ted to remain
in
an intermediate position could result
in control circuits being improperly connected result-
ing
in
electrical failures.
1-4 QUALIFIED PERSONNEL
For the purpose of operating and maintaining low volt-
age circuit breakers, a person should not be considered
qualified if the individual is not thoroughly trained
in
the
operation of the circuit breaker and how it interfaces
with a switchboard. In addition, the individual should
have knowledge of the connected loads.
For the purpose of installing and inspecting circuit
breakers and their associated switchboard, a Qualified
Person should also be trained with respect to the haz-
ards inherent to working with electricity and the proper
way to perform such work. The individual should be able
to de-energize, clear and tag circuits
in
accordance with
established safety practices.
1-5 OTHER PUBLICATIONS AND
DOCUMENTATION
In addition to this instruction manual, other printed infor-
mation and documentation is available and supplied as
appropriate. This additional information can include, but
not necessarily be limited to,
an
instruction manual for
the specific electronic trip unit being used with the circuit
breaker, a Renewal Parts Data Book, and necessary
dimensional drawings.
Effective
07
/97
Figure 1-2 Typical OSI/ Nameplate
Table 1.2 Type DSLll Breaker and Combination
Ratings
Page
3
Type Frame Max Interrupting Rating,
DSLll-308©
DSLll-516©
DSLll-620©
DSLll-632®
DSLll-840®
Size, Amp.
RMS
Sym. Amp., System
Voltage
600
or Below
800 200,000
1600 200,000
2000 200,000
3200®
200,000
4000 200,000
ID
Limiter Integral with drawout breaker element.
® DSll-632 breaker and DSll-FT32 drawout fuse truck in separate interlocked
compartments.
® DSll-840 breaker and DSll-FT40 drawout fuse truck in separate interlocked
compartments.
© Maximum continuous rating limited to 3000A when fuse truck compartment
is above breaker compartment.
Courtesy of NationalSwitchgear.com
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