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Series CA5 Contactors
A104
Contactors
CA5
A
SSCDN8500E
Series CA5
Contactors
The complete contactor
for heavy industrial
applications from
500HP to 900HP
CA5 Series contactors provide large
horsepower performance with a design
that is up to 40% smaller than tradi-
tional contactors of this rating. The
entire line is modularly designed for
easy inspection, contact replacement
and coil change out. All maintenance
can be performed from the front so
that mounting can be accomplished
with no wasted space on the sides.
The contactor for large
horsepower applications
The CA5 series consists of four
contactors in two frame sizes cover-
ing motors from 500 to 900 HP (at
460V/575V). This line is well suited
for heavy industrial applications utiliz-
ing large machinery and equipment
such as rock quarries and mines, or
for any large horsepower application
where a rugged and dependable con-
tactor is needed.
Specially designed shock-
free contact system
A characteristic of contactors in this
size class is to transmit intense impact
forces during operation. This is caused
by the heavy magnetic armatures of
the core, which can cause contact
bounce. CA5 contactors, however,
are designed so that the operating
planes of the electromagnets and the
contacts are opposed to each other by
90°. This results in a bounce-free con-
tact system, increasing the contactors
mechanical life and raising contact
reliability.
Rugged and reliable
A massive steel framework supporting
the magnet system ensures high stabil-
ity in all applications. Low-wear mate-
rials for bearings and sliding surfaces,
as well as generously dimensioned
magnet-pole faces result in above aver-
age mechanical life with a minimum
of maintenance. Despite their rugged
construction, overall contactor weight
has been reduced considerably permit-
ting simpler panel construction and
easier assembly.
334mm
(
13
3/16
)
1200A
1350A
280mm
(
11)
1000A
1100A
Direction of
electromagnets
(coil armature)
Direction of main
contacts A105
Contactors
CA5
A
SSCDN8500E
A full range of CA5 accessories is available, including a unique mechanical interlock
that allows vertical mounting of contactors (see explanation above)
Unique coil feeder group
offers many advantages
CA5-700 and 860 contactors are
equipped with a special feeder group
for the coil that accommodates AC
control voltages of 50 or 60Hz, and a
wide range of DC voltages.
This coil arrangement eliminates noise
and provides very low pickup and
hold-in current. In addition, the drop-
out time of the coil can be adjusted
within one of three ranges.
Normal Drop (150 to 200ms): for
prompt reaction of contactor to a
breaking command (factory setting).
Delayed Drop (0.5 to 1s): where it is
necessary for the contactor to be im-
mune to short power supply interrup-
tions or uncertain control devices.
Fast Drop (about 20ms): for safety
applications where instant dropout is
required.
Adjustable auxiliary
contacts
CA5 contactors can be equipped with
a maximum of four NO and four NC
auxiliary contacts. In addition, the
closing time of the auxiliary contacts
(on CA5-700 & 860 contactors) can
be adjusted to meet individual control
requirements.
Add-on fourth pole
In many applications, the neutral
also needs to be switched. All CA5
contactors can be fitted with a 4th
pole on either the left or right side of
the contactor. This switched neutral is
available as an accessory that can easily
be installed in the field.
Modular, convenient design
The CA5 line is modularly designed for
easy inspection, coil change and contact
replacement. Maintenance can be per-
formed from the front so that mounting
requires no additional space. Even with
the installation of mechanical interlocks
and auxiliary contact blocks, the units
can be flush mounted side by side, sav-
ing panel space.
1 CA5-700 Contactor
2 CA5-1000 Contactor
3 Coil Pair
4 Feeder Group
5 4th Pole (Neutral Switching)
6 Auxiliary Contact Block
7 Auxiliary Contact Block
8 Mechanical Interlock (horizontal)
9 Mechanical Interlock (vertical)

Horizontal

mechanical interlock


Vertical


mechanical interlock
Simple main contact inspection and easy coil change

3

4

9


5

1
7

6

8
2
Two choices for interlocking
reversing contactors
Unique to the CA5 range is the ability
to mechanically interlock reversing
contactors in either a horizontal or
vertical orientation. This feature allows
maximum flexibility when laying out
panels. A106
Contactors
CA5
A
Discount Schedule A-1
SSCDN8500E CA5-700 and 860 contactors are equipped with coils that operate
with both AC and DC control voltages. CA5-1000 and 1200 con-
tactors operate with AC control voltage input that is rectified for
DC coil operation. See page A109. Consult factory for DC control
voltage input. Other voltages available, see page A109.
Non-standard coil volt-
ages not listed here must be ordered and installed separately
as renewal parts. CA5-1000 horsepower ratings per IEC Utilization category
AC-3. See CA5 Technical Data section for additional sizing informa-
tion. Label does not bear a UL/CSA horsepower rating. The CA5-550 has been replaced by the CA6-420-EI contactor.
CA5-700 has been replaced by CA6-630-EI. CA5-860 has been
replaced by CA6-800-EI. These contactors are still available by
special order if required for their higher AC1 ratings. See ratings in
CA5 Technical Section.
Ordering Instructions
Note: CA5 open-type contactors include terminal bolts.
See pg. A108 for Lugs.
See Section C for reversing CA5 contactors.
CA5-700-22 contactor
CA5-1000-12 contactor
Non-Reversing, Three Pole Contactors With AC or DC Coil, Series CA5 (Open type only)
Coil Codes
Contactors - AC and DC Coil
Three Pole Series CA5
I
e
[A]
Ratings for Switching AC Motors (AC2 / AC3 / AC4)
Auxiliary
Contacts per
Contactor
Open Type
Catalog Number
Price
kW (50 Hz)
UL/CSA HP (60 Hz)
230V
400V
415V
500V 690V 1000V
3

Ø
AC-3 AC-1
200V 230V 460V 575V
NO
NC
700 1000 220
400
500 630
500
200
250
500
500
2
2
CA5-700-22-
10425
860 1100 280
500
630 710
550
250
300
600
600
2
2
CA5-860-22-
12814
1000 1200 315
510
750 850
~
350 400 800 900 1
2
CA5-1000-12-
14900
1150 1350 375
710
850 1000
~
450
450
900
900
1
2
CA5-1200-12-
17960
CA5-700 / 860
A.C. & D.C.
Coil Code
Voltage Range
50 Hz
60 Hz
VDC
120
110-120V 110-120V 100-110VDC
240
220-240V 220-240V 200-220VDC
380
380-415V 380-415V 345-380VDC
480
440-480V 440-480V 400-440VDC
CA5-1000 / 1200
AC
Coil Code
Voltage Range
50 Hz
60 Hz
110
110V
110V
220
220V
220V
380
380V
380V
440
440V
440V
l
Specify Catalog Number
l
Replace () with Coil Code
See Coil Code table on
this page for codes A107
Contactors
CA5
A
Discount Schedule A-1
SSCDN8500E Further information on adjustable contacts can be found under Auxiliary Contacts
in the CA5 Technical Section. Contactor comes standard with one 4-pole aux contact block. In addition to one standard two-pole auxiliary contact block (CA5-EB11), CA5-1000
& 1200 contactors are equipped from the factory with a special two pole auxiliary
contact block (CA5-EB11DC). One of the poles is used for operation of the Feeder
Group/Coil mechanism, the other NC contact is available for use. Two additional
aux contact blocks may be added for a total of four.
Switched Neutral (4th Pole)
Auxiliary Contact Blocks (2 & 4 Pole)
Accessories Field Installable
CA5 Contactors
Contact Block
Description
NO
NC
Contact
Arrangement
For use with... Catalog Number
Price
4-pole
For mounting between T1 & T2 or
between T2 & T3
Adjustable; provides normal, delayed
or overlapping contacts
Maximum two blocks per contactor
Alternate terminal marking tags
include
2
2
standard terminal marking for
mounting between T1 & T2
54
53
62
61
72
71
84
83
Alternate terminal marking for
mounting between T2 & T3
CA5-700
CA5-860
CA5-EF22
441
2-pole
For side mounting on either side of the
contactor
Maximum four blocks per contactor
Alternate terminal marking tags
included
1
1
Standard terminal marking
54
53
62
61

72
71
84
83
CA5-1000
CA5-1200
CA5-EB11
698
4th Pole
4th Pole
Amperes
For use
with...
Catalog Number
Price
500
CA5-700
CA5-860
CA5-NP500/6
1055
900
CA5-700
CA5-860
CA5-NP1000/6
1390
CA5-1000
CA5-1200
CA5-NP1000/7
2094 A108
Contactors
CA5
A
Discount Schedule A-1
SSCDN8500E CA5-1000 is not UL Listed.
Accessories - Field Installable
CA5 Contactors
Main Lugs
Mechanical Interlock Kit
Mechanical Latch
Lug or Accessory
Description
Wire Size
Catalog Number
Price
Screw Type Lugs -
(set of 6)
For CA5-550
For CA5-700
For CA5-860
For CA5-1000 & CA5-1200
(2) 2/0- 600MCM
(2) 3/0- 750MCM
(3) 2- 600MCM
(4) 1/0- 750MCM
CA5-550-LU
CA5-700-LU
CA5-860-LU
CA5-1200-LU
335
419
1089
1256
Latch
For use with... Catalog
Number
Price
CA5-700
CA5-860
CA5-AM6-
1139
CA5-1200
CA5-AM7-
1474
For Horizontal Mounting of Contactors
Interlock
For use with...
Catalog Number
Price

CA5-700
CA5-860
CA5-700/CA5-860
CA5-BM6H
754
CA5-700/CA5-1000
CA5-700/CA5-1200
CA5-860/CA5-1000
CA5-860/CA5-1200
C