Eaton Cutler-Hammer Digitrip RMS 510 - The Retrofit Process; Digitrip RMS Retrofit Kit

Page 8
AD 33-855-4
3.
Retrofit
Kits
shown with
Ground Fault
(G)
Protection
assume
a 3-phase' 3-wire
grounded
system.
lf the retrofit
is for a
4-wire
grounded
system,
the customer
must
specify
the fourthsensor
when ordering
the
kit'
Also,
provisions
must be
made on the
Breaker
to bring
the
foudh sensor wiring
through the
Breaker secondary
contacts.
Secondary
contacts
and
brackets, etc.
are not included
in
the content
ot the
kits.
4. Digitrip
RMS
610, 81O, & 91O
Retrofit
Kits
require an
external
(customer
supplied)
120
VAC
source
to
power
the
Trip Unit
information
functions
and Alphanumeric
Digital
Displays,
as
applicable.
lf the Optional
Breaker
Mounted
Control
Power
Transformer
(CPT)
is utilized,
the
External
120 VAC
power
source
via the
Cell
Harness
assembly
is not utilized
for this
condition.
2.3
The Retrofit
Process
During
the
Retrofit
process,
the Retrofitter
must
adhere
to the following
guidelines
to insure
that the
Breaker
is in
good
working condition,
that the
Retrofit
is
pedormed
correctly,
and that the
Breaker
is
ready to
return to service.
1 . lt is
the responsibility
of the
Retrofitter to
insure that
the Breaker
and all original
components
are in
good
condition
by
visually
inspecting
each
component
for signs
of
damage
or wear.
lf any signs
of damage or
wear are
detected
for components
not
included
in
the Retrofit Kit,
the Retrofitter
must
secure
the necessary
replacement
parts
before
beginning
the Retrofit
process.
2. lt is the
responsibility
of the Retrofitter
to
carefully
follow
all instructions
supplied
with
the Retrofit
kit.
3. lt
is the responsibility
of the
Retrofitter
to
insure that
the Direct
Trip Actuator
(DTA)
Assembly
has
been correctly
set-up,
according
to the specifications
given
within
the instructions
supplied
with the
Retrofit Kit.
4. lt is the
responsibility
of the
Retrofitter
to
insure
that, following
the Retrofit
process,
the
force
necessary
to trip the
Breaker meets
the
specifications
given
within the instructions
supplied
with
the Retrofit Kit.
5. lt is
the responsibility
of the
Retrofitter
to test
the
Retrofitted
Breaker using
primary
injection.
Refer
to Section 8 of
this manual
for detailed
testing
procedures
and
specifications.
For
test
information
specific to the
Trip Unit,
refer
to the lL
publication
supplied
with
the Retrofit
Kit.
6.
lt is the
responsibility
of the Retrofitter
to
mount
the Cell
Harness
in the cell in a
location
suitable
for connection
with the
External
Harness.
7. lt is
the responsibility
of the
Retrofitter
to
install the
retrofitted
Breaker
in the Cell to
insure
proper
Breaker / Cell
fit and correct
Breaker operation.
2.4
Digitrip
RMS
Retrofit Kit Accessories
Table 2-2
provides
a listing of optional
accessories
that are
useful
in the installation,
maintenance,
and
operation
of
your
Breaker equipped
with a
Digitrip
RMS Retrof it Kit.
ElT.il
Efieclive 9/01