Eaton ZEB Series - Engineering; Current ranges of the overload relays

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10/13 MN03402007Z-DE/EN
About this Manual
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 atmo-
spheres.
Target group This manual is aimed at specialist personnel who are respon-
sible for the installation, commissioning and maintenance of
overload relays.
Abbreviations and
symbols
Symbols used in this manual have the following meanings:
X Indicates actions to be taken.
Ex e Ignition protection type “Increased Safety”
I
A
Starting Current
I
N
Rated Operational Current
Sira Certification Service
Certification Body: Accredited certification authority
for devices operated
t
E
Temperature rise time
The temperature rise time t
E
is the time in which the
temperature of a winding rises from the final temper-
ature in normal operation to the limit temperature
when a starting current is present I
A
.