I.
B.
694C694-02
PURPOSE
This instruction manual is expressly intended to cover
the installation, operation and maintenance of Types
DSll and DSLll Power Circuit Breakers and Type DSll
Drawout Fuse Trucks. These breakers are usually sup-
plied as part of low voltage metal enclosed drawout
switchgear. This manual applies only to the circuit
breakers and their details. Type DSll breakers, not Type
DSLll, may also be supplied as fixed mounted units. In
the case of fixed versions of the Type DSll breaker, cer-
tain sections of this manual referring to such items as
position interlocks and the drawout mechanism will not
apply.
Trip units associated with Type DSll and DSLll Power
Circuit Breakers will be addressed
in
a general manner
in
this manual. Specific trip unit details and time-current
characteristic curves are covered in a separate docu-
ment specific to the trip unit itself.
For information concerning Types DSll and DSLll Power
Circuit Breakers, Type DSll Drawout Fuse Trucks and
their accessories consult the applicable Instruction Book
or other descriptive publications.
Page
iii
For application information, consult Cutler-Hammer Inc.,
see applicable Descriptive Bulletins, Application
Publications and/or Industry Standards.
SAFETY
All safety codes, safety standards and/or regulations
must be strictly observed
in
the installation, operation
and maintenance of this equipment.
A WARNING
THE WARNINGS AND CAUTIONS INCLUDED AS
PART
OF
THE PROCEDURAL STEPS IN THIS MAN-
UAL ARE FOR PERSONNEL SAFETY AND PROTEC-
TION OF EQUIPMENT FROM DAMAGE. AN EXAM-
PLE OF A TYPICAL WARNING LABEL HEADING IS
SHOWN ABOVE TO FAMILIARIZE PERSONNEL
WITH THE STYLE OF PRESENTATION. THIS WILL
HELP
TO
INSURE THAT PERSONNEL ARE ALERT
TO
WARNINGS. IN ADDITION, CAUTIONS ARE ALL
UPPER CASE AND BOLDFACE.
All
possible contingencies which
may
arise during installation operation
or
maintenance,
and
all
details
and
variations
of
this equipment do
not
purport to
be
covered
by
these instructions.
If
further information is desired
by
purchaser
regarding his particular installation, operation
or
maintenance
of
particular equipment, contact the local Cutler-
Hammer Inc. representative.
Effective
07
/97
Courtesy of NationalSwitchgear.com