EasyManuals Logo

ABB CR Series User Manual

ABB CR Series
27 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #5 background imageLoading...
Page #5 background image
I
.
L
.
41
-
131
P
TYPES
CR
,
CRC
,
CRP
AND
CRD
RELAYS
INTERNAL
SCHEMATIC
UPPER
OIRECTIOXAL
UNIT
LOWER
DIRECTIONAL
UNIT
0
i
D
f
UPPER
DIRECTIONAL
|
INDICATING
CONTACTOR
SNITCH
ICS
*
4
"
UNIT
LOVER
DIRECTIONAL
UNIT
/
I
;
i
,
ICS
D
i
.
1
/
:
t
>
>
^
i
>
CO
^
r
-
i
.
_
INDUCTION
UNIT
0
I
coj
/
\
&
1
T
CHASSIS
OPERATED
SHORTING
SNITCH
RED
HANDLE
K
T E S T
SNITCH
-
CURRENT
TEST
JACK
,
TERMINAL
ITU
RELATIVE
INSTANTANEOUS
POLARITY
AS
SHOWN
THE
01
RECTI
ORAL
UNIT
CONTACTS
CLOSE
J
_
1
~
X
l
A
.
'
v
>
X
i
-
0
3
i
-
2
hOV
0
<
t
I
t
>
rrT
®
v
*
vi
Sub
3
57
D
4559
FRONT
vlEw
Fig
.
7
.
Internal
Schematic
of
double
trip
,
directional
over
-
current
relay
type
CRP
in
type
FT
21
Case
.
For
the
single
trip
relay
the
circuits
associated
with
ter
-
minal
2
are
omitted
,
57
D
4545
.
Fig
.
8
.
Internal
Schematic
of
double
trip
,
directional
over
-
current
relay
type
CRD
in
type
FT
31
Case
.
For
the
single
trip
relay
the
circuits
associated
with
ter
-
minal
2
are
omitted
,
57
D
4561
.
The
relays
are
generally
available
in
the
follow
-
ing
overcurrent
unit
current
ranges
:
Trip
Circuit
Constants
Indicating
Contactor
Switch
0.2
amp
tap
6.5
ohms
d
-
c
resistance
2.0
amp
tap
0.15
ohms
d
-
c
resistance
Type
CR
Relay
Range
Taps
0.5
-
2.5
0.5
0.6
0.8
1.0
1.5
2.0
2.5
2
2.5
3
3.5
4
4
5
6
7
8
10
12
2
6
5
6
4
-
12
This
voltage
polarized
type
relay
is
intended
for
phase
fault
protection
and
the
directional
unit
has
its
maximum
torque
when
the
current
leads
the
voltage
by
approximately
30
°
.
The
directional
unit
minimum
pick
-
up
is
1
volt
and
4
amperes
at
its
maximum
torque
angle
for
the
4
to
12
ampere
range
relays
and
1
volt
and
2
amperes
for
the
2
to
6
ampere
and
0.5
to
2.5
ampere
range
relays
.
These
relays
may
have
either
single
or
double
circuit
closing
contacts
for
tripping
either
one
or
two
circuit
breakers
.
The
time
vs
.
current
characteristics
are
shown
in
Figs
.
13
to
19
.
These
characteristics
give
the
con
-
tact
closing
time
for
the
various
time
dial
settings
when
the
indicated
multiples
of
tap
value
current
are
applied
,
to
the
relay
.
The
directional
unit
should
be
connected
using
the
cur
-
rent
in
one
-
phase
wire
and
the
potential
across
the
other
two
-
phase
wires
.
This
connection
is
commonly
referred
to
as
the
90
°
connection
.
When
utilizing
the
90
°
connection
the
maximum
torque
of
the
relay
occurs
when
the
fault
current
lags
its
100
%
P
.
F
.
position
by
approximately
60
°
.
See
Fig
.
21
.
Type
CRC
Relay
Trip
Circuit
The
main
contacts
will
safely
close
30
amperes
at
250
volts
d
-
c
and
the
seal
-
in
contacts
of
the
in
-
dicating
contactor
switch
will
safely
carry
this
cur
-
rent
long
enough
to
trip
a
circuit
breaker
.
The
indicating
instantaneous
trip
contacts
will
safely
close
30
amperes
at
250
volts
d
-
c
,
and
will
carry
this
current
long
enough
to
trip
a
breaker
.
The
current
polarized
type
relay
is
intended
for
ground
fault
protection
and
operates
on
residual
current
.
See
Fig
.
23
.
The
type
CRC
relay
has
its
maximum
torque
when
the
operating
current
leads
the
polarizing
current
by
approximately
40
°
.
The
direc
-
tional
unit
minimum
pick
-
up
is
0.5
ampere
in
each
winding
in
phase
for
the
0.5
to
2.5
ampere
and
the
2
to
6
ampere
range
relays
.
The
indicating
contactor
switch
has
two
taps
that
provide
a
pickup
setting
of
0.2
or
2
amperes
.
To
change
taps
requires
connecting
of
lead
located
in
front
of
the
tap
block
to
the
desired
setting
by
means
of
a
screw
connection
.
5
Courtesy of NationalSwitchgear.com

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the ABB CR Series and is the answer not in the manual?

ABB CR Series Specifications

General IconGeneral
Contact ConfigurationSPDT, DPDT
Operating Temperature-40...70 °C
Insulation Resistance1000 MΩ
Electrical Life100 x 10^3 operations at rated load
Coil Voltage5 VDC, 6 VDC, 12 VDC, 24 VDC, 48 VDC, 60 VDC, 110 VDC, 24 VAC, 48 VAC, 115 VAC, 120 VAC, 230 VAC, 240 VAC
Contact Rating6 A / 250 VAC, 6 A / 30 VDC

Related product manuals