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R E L I A G E A R LV M C C LO W V O LTA G E M OTO R C O N T R O L C E N T E R
52
Size 5 – 300:15CT (Standard and Ambient Comp.)
Motor Full-Load
Amps 3-Ph,
3 Heater
109-118
119-128
129-138
139-155
156-168
169-184
185-200
201-221
222-237
238-262
263-270
Electronic overload table for fusible controllers
Tripping current is 120% of Dial setting. Motors
with 1.15-1.25 service factor, set dial to motor
FLA Motors with 1.0 service factor, set dial to 0.9
motor FLA.
NEMA
Size
1
1
1
1
1
2
2
2
3
3
3
4
4
4
5¹
5¹
5¹
6²
6²
Heater Number
CR123
C592A
C630A
C695A
C778A
C867A
C955A
C104B
C113B
C125B
C137B
C151B
FLA Range
Catalog
in Amps
Number
0.8 to 1.59
CR324CXD
Class R 30
1.6 to 3.19
CR324CXE
3.2 to 6.49
CR324CXF
6.5 to 12.8
CR324CXG
13 to 27
CR324CXH
13 to 25.6
CR324DXG
26 to 49.9
CR324DXH
50 to 100
CR324DXJ
17 to 34.9
CR324FXK
35 to 64.9
CR324FXL
65 to 90
CR324FXM
17 to 34.9
CR324FXK
35 to 64.9
CR324FXL
65 to 135
CR324FXM
32 to 64.0
CR324GXN
65 to 129.9
CR324GXP
130 to 270
CR324GXQ
130 to 259.9
CR324HXS
260 to 540
CR324HXT
CAUTION
Additional motor overload protection required for
Maximum Fuse
MM200 abd MM300 relay applications with FLA less
Rating
than 6A.
600
600
Heaters for NEMA size 6 and 7 fused controllers
600
For continuous-rated motors with a service factor
600
of 1.15 to 1.25, select the appropriate heaters for
600
the motor full-load current. For continuous-rated
600
motors with a service factor of 1.0, multiply the
600
motor full-load current by 0.9 and use this value
600
to select heaters. Overload relay tripping current in
600
40° C ambient is the minimum value of full-load
600
current multiplied by 1.25. Provide short-circuit
600
protection in accordance with the National
Electrical Code
WARNING
Opening of the circuit breaker or power fuse may
be an indication that a fault current has been
interrupted. To provide continued protection
against fire or shock hazard, examine all current-
carrying parts and other components of the motor
Max. Fuse in Amps
controller and replace any damaged components. If
Class J 60
heater burnout occurs, the complete overload relay
must be replaced.
Overload heaters for controllers with NEMA
Size 6 starters for standard and ambient-
60
100
compensated ratings, CT ratio 600:5.
Maximum Motor
100
200
Full-Load Current
181-197
198-214
200
400
215-238
239-258
259-290
400
600
291-346
347-387
388-423
600 Class L 1200
424-467
468-516
517-540
Current Transformer
Heater Number
Secondary Amps
1.51-1.64
1.65-1.78
1.79-1.98
1.99-2.15
2.16-2.42
2.43-2.88
2.89-3.22
3.23-3.53
3.54-3.89
3.90-4.30
4.31-4.50
CR 123
C220A
C239A
C268A
C301A
C326A
C356A
C379A
C419A
C466A
C526A
C592A
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