GE AKR-75 Installation Instructions Manual page 3
Low voltage power circuit breakers
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Also See for AKR-75:
- Maintenance manual (102 pages) ,
- Installation instruction (5 pages) ,
- Manual (63 pages)
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SECTION 1
Introduction
i
These
instructions
describe the installation
and operation
of the AKR
-
75
and AKR
-
100 frame size Low Voltage Power
Circuit Breakers . They cover a
variety of
models
which may
differ in rating , trip device and
/
or mounting
type
as indicated
in Table 1
.
Table 1
MOUNTING TYPE
FRAME SIZE
( Amperes )
BREAKER
WIDTH
( Inches )
PRIMARY
STUD
TYPE
DEEP
ESCUTCHEON
BREAKER
DESIGNATION
DRAWOUT
Stationary
Sub
*
Structure
600
V
.
Ac
50
/
60
Hz
.
AKD
-
8
AKD - 5 AKD
-
6
AKD
250 V
.
DC
Bar
X
AKR
-
O
-
75
3000
Tube
X
25
Tube
X
X
AKR
-
( * )
A
-
75
4000
Fingers
X
X
AKR
-
HB
-
75
Fingers
AKR
-
(
»
)
C
-
75
X
3200
Fingers
X
X
AKR
-
nD -
75
Fingers
X
X
AKR
-
(
*
)
F
-
75
Bar
X
AKR
-
( * )
S
-
75
Tube
AKR
-
n
-
100
X
33
Tube
AKR
-
(
*
)
A
-
10
Q
X
X
Fingers
X
X
AKR
-
(
*
)
B
-
100
25
Fingers
X
AKR
-
(
*
)
Q
100
6000
4000
Fingers
X
X
AKR
-
nD
-
100
Fingers
X
X
AKR
-
(
* )
F
'
10
Q
Bar
X
AKR
-
HS
-
100
Bar
33
i
X
AKR
-
OW
-
100
SPECIAL DC BREAKERS FOR
FIELD SWITCHING
Tube
ARK
- N -
75
F
X
Fingers
X
X
AKR
-
NB
-
75 F
25
Fingers
X
AKR
-
ND
-
75
F
X
4000
Fingers
X
X
AKR
-
NF
-
75 F
Bar
X
AKR
-
NS
-
75 F
33
Tube
AKR
-
N
-
100 F
X
Fingers
X
X
AKR
-
NB
-
100 F
Fingers
X
X
6000
AKR
-
ND
-
100 F
Fingers
X
X
AKR
-
NF
-
100 F
25
Bar
X
AKR
-
NS
-
100 F
33
Bar
X
AKR
-
NW
-
100 F
Example : AKR
-
5 B
-
75 identifies a drawout
,
substructure
-
mounted breaker equipped with the
SST trip device
.
The EC trip devices
are
electro
-
mechanical
,
refer
to
GEI 86157 for
detailed information
.
BREAKER MODELS
(
*
)
This
digit identifies
the trip device
:
2
=
EC
-
1
or E 02 A
.
Dc only
.
4
=
ECS
5
-
SST
50
/
60 Hertz only
.
6
=
MicroVersaTrip 50 / 60 Hertz only
.
7
=
MicroVersaTrip RMS
-
9 50
/
60 Hertz
only
.
8
=
EPIC MicroVersaTrip
.
9
=
MicroVersaTrip Plus and PM 50 / 60 Hertz
only .
For detailed information on
these trip devices refer
to
the
following
publication
:
GEI
-
86157
N
=
Non
-
automatic
.
In
addition
,
all
non
-
automatic
250
V
.
Dc breaker types carry the
suffix
letter
D after
the
frame number
,
e
.
g
.
,
AKR
- N
B
-
75 D
.
i
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