GE IAC57A

GEI
-
19959
J
INSERT
BOOKLET
GEH
-
1753
INSTRUCTIONS
LONG
-
TIME
OVERCURRENT
RELAYS
TYPES
IAC
57
A
and
IAC
57
B
INTRODUCTION
This
booklet
,
with
Insert
Book
GEH
-
1753
,
forms
the
instructions
for
the
Type
IAC
57
A
and
IAC
57
B
relays
.
The
IAC
57
A
and
IAC
57
B
relays
are
similar
to
the
Type
IAC
51
A
and
IAC
51
B
relays
,
respectively
,
except
that
some
of
the
parts
have
been
altered
to
provide
longer
operating
times
.
Typical
time
-
current
curves
for
these
relays
are
shown
in
Figure
1
of
this
booklet
.
The
one
-
second
and
continuous
current
ratings
for
these
relays
are
listed
in
Table
I
.
TABLE I
CURRENT RATINGS
1
-
SECOND
CONTINUOUS
RELAY
RANGE
10.0
-
20.0
5.0
-
8.0
1.5
-
3.5
250
4
-
16
1.5
-
6
0.5
-
2
200
70
The outline
and
panel
drilling
dimensions
for
these
relays
are
shown
in
Figure
20
of
GEH
-
1753
.
The internal
connection
diagram
for
IAC
57
A
is
Figure
11
and
for
IAC
57
B
is
Figure
12
in
GEH
-
1753
.
These
instructions
do
not
purport
to
cover
all
details
or
variations
in
equipment
nor
provide
for
every
possible
contingency
to
be
met
in connection
with installation
,
operation
or
maintenance
.
Should
further
information
be desired
or
should
particular
problems
arise
which
are
not
covered
sufficiently
for
the
purchaser
’
s
purposes
,
the
matter
should
be
referred
to
the
General
Electric
Company
.
To
the
extent
required
the
products
described
herein
meet
applicable
ANSI
,
IEEE
and
NEMA
standards
;
but
no
such
assurance
is
given
with
respect
to
local codes
and
ordinances
because
they
vary
greatly
.
Courtesy of NationalSwitchgear.com

GE IAC57A Specifications

General

Input Voltage	120 VAC
Contact Configuration	DPDT
Coil Voltage	120 VAC
Electrical Life	100, 000 operations
Mechanical Life	10, 000, 000 cycles