Close Button
The AKA 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.
Open Fuse Lock Out Device
Fuse Roll Out
The AKR-75 and -1 00 draw out AKRU breakers require a
separate fuse roll out. All fuse roll outs accept Class L fuses
800-4000A . 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.
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.
R
e
mo
t
e C
los
e
Sol
e
n
o
id
(
F
o
r
m
anua
lly-o
pera
t
ed
AKR-30H, -50, AKRT-50H
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-308.
Maintenance
Clc-sing 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 de 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.
25
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