Type Akru Breakers - GE AKR-30S Manual

Type AKRU Breakers

The fused low voltage power
drouHbffia�r mee�NEMA
standard SG3 and ANSI
C37.13, and C37.28. They
provide protection for sys­
tems with available fault
current to Amperes
200,000
RMS symmetrical. Current
limiting fuses are provided
Open Fuse Lock Out Indicators
8
as an integral part of the
fused draw out breakers in
the and Ampere
800 1600
frame sizes. The and
3200
Ampere frames are
4000
available with coordinated
fuses separately mounted in
a draw out fuse carriage or
fuse roll out element (station-
ary mounted fused breakers
are not available.)
An open fuse lock out
device is an integral part of
all fused power circuit break­
ers. This device prevents
single phasing by monitoring
the fuses. Should any fuse
blow, this direct acting
AKRU-50 Fuses
device trips the breaker,
opening all three poles
simultaneously. Individual
phase indicators pin point
the blown fuse. The breaker
remains locked out until the
fuse is replaced and the
device is reset.