Effective October 2009
10/09 AWB1230-1605
Operation and maintenance of
IZM low voltage air circuit breakers
Purpose
This instruction leaflet is expressly intended to
cover the installation, operation, and maintenance
of IZM air 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) its mating cassette. IZM circuit breakers
may also be supplied as fixed-mounted devices. In
the case of fixed versions of IZM circuit breakers,
certain sections of this leaflet, referring to such
items as position interlocks and the drawout
mechanism, will not apply.
Trip units associated with IZM air circuit breakers
will be addressed in a general manner in this
leaflet. Specific trip unit details and time-current
characteristic curves are covered in separate
documents specific to the trip units.
IZM circuit breaker accessory items are discussed
briefly in this leaflet. Field installation instructions
for such items, however, are covered in individual
instruction leaflets specific to the accessory. This
information is also available from the Moeller Web
site at www.moeller.net/de/support.
For application information, consult Moeller 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.
Warning
THE WarningS anD CaUTiOnS inCLUDED aS
ParT OF THE PrOCEDUraL STEPS in THiS LEaFLET
arE FOr PErSOnnEL SaFETY anD PrOTECTiOn
OF EQUiPMEnT FrOM DaMagE. an EXaMPLE OF
a TYPiCaL Warning LaBEL HEaDing iS SHOWn
aBOVE TO FaMiLiariZE PErSOnnEL WiTH THE STYLE
OF PrESEnTaTiOn. THiS WiLL HELP TO EnSUrE THaT
PErSOnnEL arE aLErT TO WarningS. in aDDiTiOn,
CaUTiOnS arE aLL UPPErCaSE anD BOLDFaCE.
All possible contingencies that 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 particular installation, operation, or
maintenance of particular equipment, contact
the local Moeller representative.
IZM40
IZM97, IZM32, IZME40
IZM93, IZM20
