Ratings - GE IACS3A Instructions Manual

Time overcurrent relays, form 800 and up
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pi c ks
up,
i t r a i s e s
e x pos e d
unti l re le a s ed
c orn e r of the c ove r .
The
i n s ta n ta n eous
moun ted
on
the
ove r c ur re nt
un i t.
wi th
the
c on ta cts
c on n e c ted
i n
s e ri e s
i n s ta n ta n e ous
un i t pi c ks
r e ma i n s e x posed unti l i t i s
the
ta rg et
of
i n s ta n ta n e ous un i t.
TIME- OVERCURRENT UNIT
Rati n g s of the ti me overcurren t un i t a re g i ve n i n Table I.
RELAY
IAC53A
and
IAC54A
IAC53B
and
IAC54B
Ava i lable taps of the ti me-ove r c ur r e n t un i t a r e s hown i n Table II.
RANGE, AMPERES
0.5
4.0
-
1.5
- 12.0
2.0
- 15.0
GEK-34054
a
ta r g e t i n to vi ew tha t latches
by pre s s i ng
un i t
i s
a
s ma ll- hi nge
fron t,
to
the
Its
c on ta cts
of
the
ti me-overc urre n t
wi th
the
up,
i t r a i s e s a
r e lea sed.
the
s ea l - i n
un i t

RATINGS

TABLE I
FREQUENCY
CYCLES
50/60
50/60
TABLE I I
TAPS AVAILABLE {AMPERES)
0.5, 0.6, 0.7, 0.8 1.0, 1.2, 1.5, 2.0, 2.5, 3.0, 4.0
1. 5, 2.0, 2.5. 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 10.0, 12.0
2.0, 2.5, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 10.0, 12.0, 15.0
a
button
be neath
type
un i t,
r i g ht
of
the
s ha ft
a re
n orma lly
c onnected
un i t,
ti me-overcurre n t
targ e t tha t l a tc he s
The s a me button tha t r e le a s e s
a l s o
re l e a s e s
PICKUP RANGE, AMPERES
MAIN (TIME)
INSTANTANEOUS
UNIT
0.5
-
4.0
1.5
- 12.0
2.0
- 15.0
0.5
-
4.0
0.5
1.5
- 12.0
2.0
2.0
- 15.0
10.0
20.0
5
up and
re ma i n s
the
lowe r - le ft
whi c h
ma y
of
the
ti me ­
i n
pa r a llel
and
i ts
c oi l
un i t.
When
up a nd
the
targ e t
o f
UNIT
4.0
-
16.0
-
80.0
- 160.0
be
i s
the
the

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