Eaton MDN-408 Instructions For Installation, Operation And Maintenance page 3

PURPOSE
This instruction manual is expressly intended to cover
the installation, operation and maintenance of Magnum
DS (MDS), DSX (MDSX) and Magnum DSL (MDSL)
Power Circuit Breakers. These circuit breakers may be
supplied as part of complete switchboard assemblies or
as separate components. This manual applies only to
the circuit breaker and (if drawout) it's mating cassette.
The Magnum DSL circuit breaker can only be supplied
as a drawout device. In the case of fixed versions of
Magnum DS circuit breakers, certain sections of this
manual, referring to such items as position interlocks
and the drawout mechanism, will not apply.
Trip units associated with Magnum DS, DSX and DSL
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 sepa-
rate documents specific to the trip units.
Magnum DS, DSX and DSL circuit breaker accessory
items are discussed briefly in this manual. Field installa-
tion instructions for such items, however, are covered in
individual instruction leaflets specific to the accessory.
This information is also available from the Cutler-
Hammer website at www.EatonElectrical.com
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.
I.B. 2C12060H08
For more information visit: www.EatonElectrical.com
Effective: May 2006
For application information, consult Cutler-Hammer or
see applicable Product Guides, Technical Documents,
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.
!
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.
Instruction Book
Page iii
WARNING