Akr - 30 S; Akr - 30 / 50 / T; Akr - GE AKR Manual

Close Button
The AKR electrically operated breaker is furnished as
standard without operating handle and is closed by receipt of
a signal provided by the
remote momentary
closure of a
contact
of a relay
or switch
.
A close button escutcheon
,
mounted
,
momentary contact is available when specified
.
Fuse Roll Out
The AKR
-
75 and
-
100 draw out AKRU breakers require a
separate
fuse roll
out
.
All fuse roll
outs accept
Class L fuses
800
- 4000 A
.
The draw
out
breaker elements used in conjunc
-
tion with these fuse roll out elements should be equipped
with an open fuse lock
out
device
.
The breaker
component
should have provisions for key interlock
.
Open Fuse Lock Out Device
The open fuse lock out device automatically trips the breaker
if one of the fuses opens
.
The breaker is locked open until
the reset button of the phase involved is reset
.
0 PEN
fUSE
LOCKOUT
CAT
.
NO
.
425 D
362
G 1
COIL NO
RESET
IN
121 C 7 S
23 CS
OPENING
OP
*
N
EUSE
INDICATES
PUSH TO RESET
Af TER
REPLACING
E USE
Remote Close Solenoid
( For manually
-
operated
AKR
-
30 H ,
-
50 , AKRT
-
50 H
breakers )
The solenoid provides a
means to electrically close
the above breakers from a
remote location
.
It may
be
controlled by a switch or
pushbutton for five - cycle
closing
.
Breaker must be
charged locally
.
Available
ratings : See Table 39.2
,
page 39
—
not
available on
AKR -
30 S
.
Maintenance
Closing Handle
The maintenance closing
handle is furnished as
standard ( one handle for
up
to
five breakers
.
) The
maintenance handle is
provided for the slow closing
motion required during
contact adjustment proce
-
dures ( not required on
manually operated AKR - 75
and 100 breakers
.
)
Reverse Current Device
The reverse
current device
is available for dc breakers
only
.
It is designed
to
trip the
breaker if
current
reverses
direction
.
Operations Counter
This accessory
mounts
on
the breaker as a five digit ,
non - resettable
counter
actuated by the breaker
cam shaft
.