GE AKR Series User Manual

GEI-86134,
Power
Circuit
Breokers
AKR-5OH.
An
AKR-50
with
extended
short
circuit
?ffiEs
attaine$-by
special
arc
quenchers,
closing
springs
and
added
insulation.
euencher
tops
and
closing
springs
currry
the
same
red
color
used
on
the
AKR-30H.
AKRT-50.
A
20004
extension
of
the
1600A
frame
AEF-:$;-
M
o dif i
cations
ar e
:
a.
New
and larger
upper
stud
assembly,
movable
contact
arms
and
pivot
block.
b.
Stationary
main
contacts
increased
from
6 to
g;
otherwise
the
stationary
contacts
are
identicai
to the
AKR-50.
See
Figs.
g
and 9.
BREAKER
RATINGS
AKR
breakers
a.reavailable
inthree
frame
sizes
--
800,
1600
and
2000
amperes.
These
values
re_
present
the
maximum
continuous
current
capability
of the
respective
frames.
However,
each
breaker
carries
a specificrating
whichis
determined
by
the
current.sensor
€rmpere
rating(or
tap
setting)
of tt"
trip
device
with
which
it
is
equipped.
EXAMPLE:
An
AKR-5A-3O
breaker
with
SST
sensor
tap
set
on
1004
is rated
100A.
Short
cir
cuit
ratings
vary
with
the
applied
system
voltage..
OTZ
!
V
systems
they
are
atso Oependent
upon
whether
the
overcurrent
trip
device
contains
an instantaneous
trip
element.
See
lante
Z.
TABI.T
2
BREAKTR
RAIIIIGS
Frame
Size
(Amperes)
Breal<er
Type
Rated
Maximum
Voltage
(60H2
ac)
3{
Short
Circuit
Rating
(kA
RMS Sym)
with
Instantaneous
Trip
Without
Instantaneous
Trip
800
AKR-30
635
508
254
30
30
42
30
30
30
AKR-3OH
635
508
254
42
42
50
42
42
42
1600
AKR-50
635
508
254
42
50
65
42
50
50
AKR-5OH
635
508
254
50
65
65
50
65
65
2000
AKRT.SO
635
508
254
42
50
65
42
50
50
800
AKRU-30
600
200
200
1600
AKRU
-50
600
200
200

GE AKR Series Specifications

General

Number of Poles	1, 2, 3
Voltage Rating	240V AC, 480V AC, 600V AC
Frame Size	AKR
Trip Unit	Thermal-Magnetic
Standards	UL, CSA
Amperage	Varies by model (15-1200)