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0 About this Manual
0.1 Target group
0.2 List of revisions
0.3 Abbreviations and symbols
This manual applies to ZEB12, ZEB32, ZEB65, ZEB150, ZEB225A overload
relays and the corresponding equivalent overload relays with type declaration
XTOE and C440.
The manual describes the overload monitoring suitable for the protection of
Ex e motors in potentially explosive atmospheres.
This manual is aimed at specialist personnel who are responsible for the
installation, commissioning and maintenance of overload relays.
The following significant amendments have been introduced since the
previous issue:
Publication
Page
date
11/16
31
40
36
48
10/13
Symbols used in this manual have the following meanings:
Ex e
Ignition protection type "Increased Safety"
I
Starting Current
A
I
Rated operational current
e
I
Rated short-circuit current
q
Sira
Certification Service
Certification Body: Accredited certification authority for devices operated
t
Temperature rise time
E
The temperature rise time t
winding rises from the final temperature in normal operation to the limit
temperature when a starting current is present I
ZEB (XTOE, C440) 11/16 MN03402007Z-DE/EN www.eaton.com
Key word
Current factor for tripping classes
Terminal capacity
Approvals
EU declaration of conformity
First edition
is the time in which the temperature of a
E
0 About this Manual
0.1 Target group
new
modified
✓
✓
✓
✓
.
A
deleted
25
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