About This Manual; Target Group; List Of Revisions; Abbreviations And Symbols - Eaton PKE12 Handbuch

0 About This Manual

0.1 Target group

0.2 List of revisions

0.3 Abbreviations and symbols

This manual applies to PKZE12, PKE32 and PKE65 motor-protective circuit
breakers.
The manual describes the overload monitoring suitable for the protection of
motors in potentially explosive atmospheres (Ex e areas).
This manual is aimed at specialist personnel who are responsible for the
installation, commissioning and maintenance of the motor-protective circuit
breaker.
The following amendments have been made since the last edition:
Edition Page Subject
date
11/17 36 Minimum current flow time
37, 51 - 88 Tripping characteristic
38 Switching capacity
39 Current heat loss
89 - 94 EU declaration of conformity (3 x)
10/15 Functional element PKE-SWD-SP
10/12 Safety analyses
07/12 New device type PKE65
PKE65 nameplate
Characteristic curves
EC declaration of conformity
06/10 First edition
Symbols used in this manual have the following meanings:
CLASS Tripping class
Ex e Ignition protection type "Increased Safety"
FIT Failure in Time, number of dangerous failures in 10
HFT Hardware-Fault-Tolerance
MTTF Mean Time To Dangerous Failure
d
PL Performance Level
PTB Physikalisch-Technische Bundesanstalt. German Federal Testing Laboratory:
Accredited certification authority for devices operated in Ex e areas
SIL Safety Integrity Level
PKE12, PKE32, PKE65 11/17 MN03402004Z-DE/EN www.eaton.com
0 About This Manual
0.1 Target group
new modified
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9
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omitted
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27