Definite Purpose
Contactors & Starters
CR453A Series Contactors
CR454A Series Starters
Caution: Before installing in a nuclear application, determine that the product is intended for such use.
Warning: Disconnect power before installing or servicing.
Description
GE’s CR453A magnetic contactors provide a 2- or 3-pole
device for use in air conditioning units or other general
purpose applications. These instructions give information
Ratings – Full Voltage, Non-Reversing
Frame
Size
about ratings, installation, accessories and wiring, overload
relay may be added if needed. Factory assembled starters
CR453AB
CR454A include overload relay.
CR453AC
CR453AD
Ratings
VAC
120
240
480
600
120
240
480
600
120
240
480
600
FLA
25
30
40
LRA
150
150
125
100
180
180
150
120
240
240
200
160
Resistive
Horsepower
1 PH
3 PH
2
3
–
–
2
5
–
–
3
7.5
–
–
–
7.5
10
10
–
10
15
15
–
10
20
20
Rating Per
Pole
35
40
50
Motor branch circuit and control circuit overcurrent
protection should be supplied in accordance with the
National Electrical Code or local code as required. CR453A
contactors are suitable for use on a circuit capable of
delivering not more than 5,000 RMS symmetrical amperes,
Typical CR453A Series contactor
600 volts maximum when protected by fuses or a circuit
breaker having an interrupting rating not less than 5,000
RMS symmetrical amperes.
Power Terminal Tightening Torque (lbs.-in.)
Terminal Type
Torque Values
Box Lug
Pressure Plate
Binding Screw
40
20
20
Use 75° C copper conductors only.
Contactor Installation
Starter Installation
Before connecting to power supply:
1. Remove all packing.
1. Remove all packing.
2. Motors with service factor of 1.15 or greater.
• Select overload relay as per the FLA shown in the
2. Operate movable magnet and operating arm by
motor nameplate.
pressing down on the operating arm from the front
• Adjust the front mounted tripping current setting
or side of the contactor to assure free movement.
dial to the motor FLA.
3. Mount starter on a sturdy vertical support.
2. Motors with service factor less than 1.15
4. Make electrical connections as per wiring diagram.
• Select overload relay as per the formula: Motor FLA
For quick connect wiring, use UL recognized insulated
(shown in the motor plate) x 0.09.
terminals.
• Adjust the front mounted tripping current setting dial
Mounting Hole Dimensions
to the result of the above mentioned motor FLA.
1.70
43,2
3. Operate movable magnet and operating arm by pressing
down on the operating arm from the front or side of the
contactor to assure free movement.
.35
8,9
3.28
83,3
4. Mount starter on a sturdy vertical support.
3.75
95,3
5. Make electrical connections as per wiring diagram.
3.16
80,3
For quick connect wiring, use UL recognized insulated
terminals.
6. Select the four modes by means of a front selector
lever.
7. Overload relays features tripping indicator, independent
MOUNTING HOLES FOR
#10 SCREWS(6 PLACES)
& double break auxiliary tripping contacts (1NO+1NC)
with welding check lever.
Contactor Wiring Diagram
8. Overload relay features thermal protection against
3 PHASE LINE CONNECTION
balanced overload, differential protection against
AUX CONTACT OPTONS
FRONT VIEW
L1
CONTROL
VOLTAGE
L2
TYPE
L2
unbalanced overloads and also ambient temperature
RIGHT
SIDE
LEFT
SIDE
C
compensation.
C
1 SPDT
M
NC
N
NC
C
C
N
C
CR454A Series Starter Dimensions
C
2 SPDT
2.25
57,0
NC
OPTIONAL
AUX
CONTACTS
T1
OPTIONAL
AUX
CONTACTS
T2
N
NC
13 23
N
NC
N
33 43
2 NO
T2
14 24
34 44
13 21
31 43
14 22
32 44
NC
N
1.12
28,5
3.13
79,4
1.71
43,3
.24
6,0
1 NO-1 NC
3 PHASE LINE CONNECTION
3.28
83,3
NOMENCLATURE
M-LINE CONTACTOR
NO-NORMALLY OPEN
NC-NORMALLY CLOSED
3.87
98,2
1.70
43,2
.27
6,9
5.68
144,3
MOUNTING HOLES FOR
#10 SCREWS(6 PLACES)
Overload Relays
Check for Welded Contacts in Overload Relay
Disconnect power from device and control wiring from the
Contactor
terminals of the relay. Connect the bell set or resistancemeasuring instrument across the relay terminals. Depress
and release the reset arm to ensure the relay is reset. In this
condition there should be continuity between the terminals.
In the tripped condition, the circuit between the terminals
should be open indicating the contacts are operating
CR453AB,
AC, AD
normally. Remove the bell set or resistance measuring
apparatus, rewire the relay terminals and reset the relay for
normal operation.
Starter Wiring Diagram
L3
L2
L1
AUX CONTACT OPTONS
TYPE
FRONT VIEW
WIRE B
RIGHT
SIDE
LEFT
SIDE
CR453AC, AD
CR453AD
WIRE A
C
L2
L1
1
L3
C
1 SPDT
REMOTE
CONTROL
NC
N
NC
C
M
C
Class 20
RT1B
RT1C
RT1D
RT1F
RT1G
RT1H
RT1J
RT1K
RT1L
RT1M
RT1N
RT1P
RT1S
RT1T
RT1U
RT1V
RT1W
RT12B
RT12C
RT12D
RT12F
RT12G
RT12H
RT12J
RT12K
RT12L
RT12M
RT12N
RT12P
RT12S
RT12T
RT12U
RT12V
RT12W
C
2 SPDT
OPTIONAL
AUX
CONTACTS
95
96
97
98
NC
OPTIONAL
AUX
CONTACTS
T1
T2
T3
N
NC
N
NC
N
NC
13 23
33 43
14 24
34 44
13 21
31 43
14 22
32 44
N
Installation
2 NO
1 NO-1 NC
CONTROL CIRCUIT FUSING
(IF USED)
L1
MOTOR
L2
NOMENCLATURE
1
M-LINE CONTACTOR
OL-THERMAL OVERLOAD RELAY
SPDT-SINGLE POLE DOUBLE THROW
NO-NORMALLY OPEN
NC-NORMALLY CLOSED
96
NOTE: ADDITIONAL CONTROL CIRCUIT PROTECTION
MAY BE REQUIRED.PREFER TO NATIONAL
ELECTRIC CODE OR LOCAL CODES.
ELEMENTARY
L1
L2
OL
1
M
FOR SEPERATE CONTROL SOURCE-OMIT WIRES A AND B.
CONNECT CONTROL SOURCE TO 1 ON CONTROL DEVICE.
AND 96 ON OVERLOAD RELAY.
REMOTE
CONTROL
95
96
Typical 250V side auxiliary contact kit.
Accessory Kit Installation
Accessories
Accessory
Contacts
CR453A Accessories
Standard
(with quick connects on
C-2000
side-mount accessories) accessories
600V side-mount aux.
contact block
250V side-mount aux
contact block
600V front-mount aux.
contact block
Mechanical interlock,
side-mount
1NO-1NC
2NO
1 SPDT
2 SPDT
1NO
1NC
CR453XC611
CR453XC620
CR453XC211
CR453XC222
BCLF10
BCLF01
BCLL11
BCLL20
—
—
BCLF10
BCLF01
2NC
CR453XM602
BEL02
Current Range (A)
0.16-0.26
0.25-0.41
0.4-0.65
0.65-1.1
1.0-1.5
1.3-1.9
1.8-2.7
2.5-4.1
4.0-6.3
5.5-8.5
8-12
10-16
14.5-18
17.5-22
21-26
25-32
30-40
For further technical details on overload relays, refer to
installation instructions GEH-6237A.
N
C
Catalog No.
Class 10
Typical 600V side auxiliary contact kit.
Front-Mount Auxiliary Contacts
Side-Mount Auxiliary Contacts
Assembly
2-Speed Controllers
Mechanical
interlock
Disassembly
Overload Relays
1
2
These instructions do not purport to cover all details or variations in equipment nor to provide for every possible contingency to be met in connection
with installation, operation or maintenance. Should particular problems arise which are not covered sufficiently for the Purchaser’s purposes the
matter should be referred to the nearest GE Industrial Systems sales office.
GE Industrial Systems
e-DEH-40445 0801
General Electric Company
41 Woodford Avenue, Plainville, CT 06062
www.GEindustrial.com
© 2001 General Electric Company