ABB | SACE Tmax XT
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Internal electronic accessories | 1 - Rating Plug
Internal electronic accessories
1 - Rating Plug
The
Rating Plug
, supplied with the trip unit establishes the rated current In required by the measuring range
and for setting the current protections (with reference to In).
It is installed on a dedicated front connector which can be accessed by the user.
The trip unit continuously checks for the presence of the
Rating Plug
and signals its absence or any assembly
or installation errors.
If a new model is installed, the Trip unit displays the request for installation when first powered.
In Ekip Touch, field
Nom.Curr
in the
About
-
Circuit breaker
menu displays the In quantity read by the unit.
Versions
Various models of different sizes are available and can be ordered in two versions: a classic version and a
version which activates Rc protection; the two versions have different labels:
Figure 39
Replacement
The module can be replaced by the user; any
Rating Plug
with maximum rated current equal to the nominal
size of the CB (Iu) can be installed.
Further details about assembly and the Rating Plug installation procedure are available in ABB Library,
particularly in document
.
IMPORTANT: to avoid alarms or undesired trips, the Rating Plug must be replaced
when Trip unit is off, the CB open and in the absence of primary currents and
voltages
