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Eaton
Moon Township, Pennsylvania U.S.A.
Style No. 69C0670H02 Effective October 1997 Printed in U.S.A./CCI
I.L. 15578A
I.L. 15578A
File 29-000
Instructions for Use of Eaton Adapter Kit and Navy Type AQBL400 Molded
Case Circuit Breaker Combination in AQB-LF400 Applications
A
WARNING
DO NOT ATTEMPT TO INSTALL OR PERFORM
MAIN
TENANCE ON EQUIPMENT WHILE IT IS ENERGIZED.
DEATH, SEVERE PERSONAL INJURY, OR SUBSTAN
TIAL PROPERTY DAMAGE CAN RESULT FROM CON
TACT WITH ENERGIZED EQUIPMENT.
ALWAYS
VERIFY THAT NO VOLTAGE IS PRESENT BEFORE
PROCEEDING WITH THE
TASK, AND ALWAYS
FOL
LOW GENERALLY ACCEPTED SAFETY PROCE
DURES.
EATON IS NOT LIABLE FOR THE MISAPPLICATION
OR MISINSTALLATION OF ITS PRODUCTS.
The user is cautioned to observe all recommendations,
warnings, and cautions relating to the safety of personnel
and equipment, as well as all general and local health
and safety laws, codes, and procedures.
The recommendations and information contained herein
are based on Eaton experience and judgement, but
should not be considered to be all inclusive or covering
every application or circumstance which may arise. If any
questions arise, contact Eaton for further information or
instructions.
Fig. 1-1 Standard Navy Type AQB-L400 Molded Case
Circuit Breaker
Effective October 1997 Supersedes I .L. 1557B dated June 1992
PART 1.
INTRODUCTION
General Information
The Navy Type AQB-L400 or AQB-LL400 circuit
breakers (Figure 1-1), when supplied with a factory
installed Eaton AQB-L400 Adapter Kit (Figures 1-2 and
1-3), can be installed directly into Navy Type AQB-LF400
applications. This combination of an AQB-L400/LL400
circuit breaker and the Eaton Adapter Kit provides a
direct one to one current limiting type L400 circuit
breaker replacement for an already installed fused type
LF400 circuit breaker. Existing AQB-L400/LL400 circuit
breakers in the field (manufactured prior to August, 1992)
may need a factory modification to accept the Adapter
Kit. Contact Eaton for details, if there are any questions.
Fig. 1-2. Navy Type AQB-L400 Molded Case Circuit
Breaker with Adapter Kit Factory Installed
Fig. 1-3. Eaton Adapter Kit Parts Before
Installation