Siemens GMI Series

Appendix
Table
A
-
1
Type
GMI Circuit
Breaker
Ratings
Rated
Required
Capabilities
Identification
Rated Values
Nominal
Voltage
Class
Nominal
3
-
Phase
MVA
Class
Current
Values
Voltage
Insulation Level
Current
3
-
Sec
.
Short
Time
Current
Carrying
Capability
Closing
Rated Rated
Max
.
Voltage
Voltage Range
©
1
Factor
Rated
Withstand
Test
Voltage
Rated
Cont
.
Current
Rated Rated
Short
Inter
-
Circuit
rupting
Current
Time
(
at
rated
Max
kV
)
© ®
Rated
Permis
-
sible
Rated
Max
.
Voltage
Divided
by
K
Max
.
Sym
.
Inter
-
rupting
Capability
and
Latching
Capability
(
Momentary
)
0
Trip
-
0
ping
<
?
\
Ls
delay
Low
Im
-
Fre
-
pulse
quency
Y
K
Times Rated
Short
Circuit
Current
1.6
K
Times
Rated
Short
Circuit
Current
®
2.7
K
Times
Rated
Short
Circuit
Current
Kl
Circuit
Breaker
Type
E
/
K
MVA
Class
E
kV
I
kV
rms
Crest
kA
rms
Cycles
Sec
.
kV
rms
kA
rms
kA
rms
kA
rms
kA
Crest
kV
Class
kV
rms
K
Amps
viy
0
1
1200
58
&
78 97
&
132
5
-
G
MI
-
250
-
.
24
19 60
29
5
2
3.85 36 36
4
16 250
4
76
2000
1200
49 78
132
5
2
5
-
GMI
-
350
"
19 19
60 2000
3000
41
4.3
49
350
4
76
4
16
1200
6.3
66
111
6 25 1.25
36
95 2000
33
5
2
41
7
-
GMI
-
500
41
7
,
2
500
3000
©
•
'
T
*
.
G
1200
37
&
58
^
18
5
2
115
23 23
62
&
97
15
-
GMI
-
5
Q
0
13.8
500
15
1.30 36
95
2000
1200
0
O
58
&
77
97
&
130
15
-
GMI
-
750
36
95
2000
28
5
2 11
5
36 36
13.8
750 15
1.30
3000
1200
15
-
GMI
-
1000
®
95 2000
37
5
2
11
5
48
48
77
130
138
1000 15 1.20
36
3000
1
.
High
close
and
latch
(
momentary
)
rating
available
for
special application
.
2
.
Maximum
voltage
for
which
the
breaker is
designed
and the
upper
limit
for
operation
.
3
.
K
is the ratio
of
rated maximum
voltage
to
the
lower
limit
of
the
range
of
operating
voltage
in
which the
required
symmetrical
and
asymmetrical interrupting
capabilities
vary
in
inverse
proportion
tc
the
operating voltage
,
4.3000
ampere
units available
with
increased
fan
-
cooled
rating
of
4000
amperes
.
5
.
To obtain
the
required
symmetrical interrupting
capability
of
a
circuit breaker
at
an
operating voltage
between
1
/
K
times rated
maximum
voltage
and
rated
maximum
voltage
,
the
following
formula
shall
be
used
:
Required
Symmetrical
Interrupting
Capacity
=
Rated
Short
Circuit
Current
x
For
operating
voltages
below
1
/
K
times
rated maximum
voltage
,
the
required
symmetrical interrupting
capability
of
the
circuit
breaker
shall
be
equal
to
K
times rated short circuit
current
.
6
.
With
the
limitations
stated
in
5.10
of
ANSI Standard
C
37
,
04
-
1979
,
all values
apply
for
polyphase
and line
-
to
-
lme
faults
.
For
single
phase
-
to
-
ground
faults
,
the
specific
conditions stated
in
5.10
.
2.3
of
ANSI Stancard C
37
04
-
1979
apply
.
7
.
Current
values
in
this column
are
not to
be
exceeded
even
for
operating voltages
below
1
/
K
times rated
maximum
voltage
.
For
voltages
between
rated maximum
voltage
and
1
/
K
times rated
maximum
voltage
,
follow
5
above
.
8
.
Current
values
in
this column
are
independent
of
operating voltage
up
to
and
including
rated maximum
voltage
.
9
.
Included
for reference
only
.
Rated Maximum
Voltage
Operating
Voltage
39
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