D
es
cr
i
p
t
iv
e
Bulletin
41-123M
P
a
ge
2
�
�
,
F
i
gur
e
1.
Typical
Connections
Construction
51-N
51·A
51-B
51·C
51-N
+
0
<
"
0
>
"
g
,
0
The Micro-5t is packaged for c
o
nve
n
ti
ona
l
semi·flush panel mounting.
An automatic
ct
shorting
feature allows the relay
to
be fully
withdrawn from its case_
A
unique,
p
a
te
nt
e
d
.
rear circuit board accepts
d
i
r
e
c
t test connec
tions
u
si
n
g standard
banana plugs.
A
test plug
is
available
lor testing the external circuits.
The Micro-511FT
is packaged
in an FT-tt case
for conventional semi·flush panel
mounting_
The Flexitest
switches
provide
ct s
ho
r
t
i
ng that
allows the rel
ay
to
be fully withdrawn from its
c
as
e
.
The
switches and companion test
p
l
u
g
allow
t
es
ts to be performed to the rel
ay in its
case mounted in the
p
a
ne
l
.
9697 06
05 �3
G
INST
TRIP BUS
TYPICAL FOR PHASES
A. B. C. AND NEUTRAL
TRIP ALARM
Retrofit Kit
The Micro-511FT
design enables the
relay to
be retrofilled in e
x
i
s
t
i
n
g
CO
in
s
ta
l
l
a
ti
ons
.
With
the same terminal connections as most
CO
rel
ay
s
.
the drawout chassis can be placed
into
e
x
i
s
ti
ng
CO
cases.
This eliminates any
rewiring.
Figure
2.
Retrofit Kit. Add "-R" suffix to Micro-511FT catalog number
August,
1991
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. ElectricalPartManuals
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