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01/11 MN03402003Z-DE/EN
About this manual
This manual applies to the PKZM0/XTPR…BC1
motor-protective circuit-breakers.
It describes the overload monitoring system for the
protection of motors operating in potentially explosive
atmospheres (Ex e areas).
Target group This manual is aimed at specialist personnel who are
responsible for the installation, commissioning and
maintenance of the motor protective circuit breaker.
Abbreviations and
symbols
Symbols used in this manual have the following meanings:
X Indicates instructions to be followed
Ex e
Ignition protection type “Increased Safety”
PTB
Physikalisch Technische Bundesanstalt.
German Federal Testing Laboratory: Accredited certi-
fication authority for devices operated in Ex e areas.
NM Lowest possible setting current
HM
Highest possible setting current
h
Draws your attention to interesting tips and
supplementary information
Caution!
warns of the risk of material damage.
Warning!
Warns of the possibility of serious damage and slight
injury.
Danger!
warns of the possibility of serious damage and slight injury
or death.
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