Digitrip Rms 510 Basic; Digitrip Rms 510 Basic Retrofit Kit Features; Selection And Content - Eaton Cutler-Hammer Digitrip RMS 510 Instructions Manual

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Page
21
SECTION
4
DIGITRIP RMS 510 BASIC
RETROFIT KITS (WITHOUT
zoNE
INTERLOCKS)
4.1
Digitrip RMS 510
Basic Retrofit
Kit
Selection and Gontent
The Digitrip RMS 510 Basic Retrofit Kit series
provides basic Overcurrent Protection
only. The
Retrofit Kits
are available
with the applicable
Digitrip RMS
510 Trip
Unit Overcurrent Trip Func-
tions, (i.e.: Long Time (L);
Short Time (S); lnstanta-
neous
(l);
and Ground Fault Time (G) Delays). The
combinations available are Ll, LS, LSl, LlG, LSG'
LSIG.
The complete Digitrip RMS 510 Basic Retrofit Kit
is
mounted on the
Breaker. Therefore, no
Switchgear
Cell modifications or wiring are required. Zone
lnterlocking signals from the Trip Unit are not wired
out from the Breaker. The External Harness (Figure
12-7) consists of
a
small jumper plug that shorts
out the Zone lnterlock signals at
the Trip Unit.
Refer
to
Figure
4-1 for the Retrofit Kit wiring con-
nections on the
Breaker.
NOTE:
Figure 4-1 applies
to
Retrofit Kits other
than SPB and DS Retrofit Kits. Refer
to the
DS or SPB lLs
or kit manual for specific
wiring.
4.2
Digitrip RMS 510
Basic Retrofit Kit
Features
The Digitrip RMS 510 Trip Unit
has
the following
features available for customer use, when applied
in
the Digitrip
RMS 510 Basic Retrofit Kit:
1.
Basic (L,
S,
I,
G)
Overcurrent Protection, as
selected;
2.
frue
RMS Sensing;
3.
lntegral Trip Unit Testing;
4.
Unit Status lndicator;
5.
Local Mode of Trip lndicators; and
6.
Selectable l2t on Short Time and Ground Fault
Time Delays when those options are selected.
The Trip Unit also includes provisions to accept the
required Rating Plug. The Rating Plug is
equipped
with a battery to power the local mode of trip
indicators.
Etfective 9/01
ElT.il