Heaters for nema size 6 and 7 fused controllers – GE Industrial Solutions Evolution Series E9000 User Manual

Page 34

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Evolution Series E9000 Installation & Maintenance Guide

Heaters for NEMA Size 6 and 7 Fused Controllers

For continuous-rated motors with a service factor of
1.15 to 1.25, select the appropriate heaters for the
motor full-load current. For continuous-rated motors
with a service factor of 1.0, multiply the motor full-load
current by 0.9 and use this value to select heaters.

Overload relay tripping current in 40° C ambient is the
minimum value of full-load current multiplied by 1.25.
Provide short-circuit protection in accordance with the
National Electrical Code.

Overload heaters for controllers with NEMA Size 6 starters for
standard and ambient-compensated ratings, CT ratio 600:5.

Overload heaters for controllers with NEMA Size 7 starters for
standard and ambient-compensated ratings, CT ratio 800:5.

Electronic Overload for Circuit Breaker
and Fused Controllers

The tripping current is 120% of the dial setting. For
continuous-rated motors with a service factor of 1.15
to 1.25, set the dial to the motor full-load current. For
continuous-rated motors with a service factor of 1.0,
set the dial to 0.9 of the motor full-load current. Refer
to GEH-6430 or 6431 before energizing.

Provide short-circuit protection in accordance with NEC
Article 430 or CE Code Part 1.

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.

Catalog numbers of electronic overloads for various sizes of
NEMA starters and current ranges.

300:15 CT’s

800:5 CT’s

NEMA
Size

FLA Range
in Amps

Catalog
Number

Breaker Frame & Type

1

0.8 to 1.59

CR324CXD

E Mag. & Thermal Mag.

1

1.6 to 3.19

CR324CXE

E Mag. & Thermal Mag.

1

3.2 to 6.49

CR324CXF

E Mag. & Thermal Mag.

1

6.5 to 12.8

CR324CXG

E Mag. & Thermal Mag.

1

13 to 27

CR324CXH

E Mag. & Thermal Mag.

2

13 to 25.6

CR324DXG

E Mag. & Thermal Mag.

2

26 to 49.9

CR324DXH

E Mag. & Thermal Mag.

2

50 to 100

CR324DXJ

E Mag. & Thermal Mag.

3

17 to 34.9

CR324FXK

E Mag. & Thermal Mag.

3

35 to 64.9

CR324FXL

E Mag. & Thermal Mag.

3

65 to 90

CR324FXM

E Mag. & Thermal Mag.

4

17 to 34.9

CR324FXK

E,F&G Mag. & Thermal Mag.

4

35 to 64.9

CR324FXL

E,F&G Mag. & Thermal Mag.

4

65 to 135

CR324FXM

E,F&G Mag. & Thermal Mag.

5

32 to 64.0

CR324GXN

G Mag. & Thermal Mag.

5

65 to 129.9

CR324GXP

G Mag. & Thermal Mag.

5

130 to 270

CR324GXQ

G Mag. & Thermal Mag.

6

130 to 259.9

CR324HXS

G,K Mag. & Thermal Mag.

6

260 to 540

CR324HXT

K Mag. & Thermal Mag

Opening of the branch-circuit protective device
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
controller and replace any damaged components.
If heater burnout occurs, the complete overload
relay must be replaced.

Maximum Motor

Full-Load Current

Current Transformer

Secondary Amps

Heater Number

CR 123

346-387

2.16-2.42

C326A

388-461

2.43-2.88

C356A

462-515

2.89-3.22

C379A

516-565

3.23-3.53

C419A

566-622

3.54-3.89

C466A

623-688

3.90-4.30

C526A

689-763

4.31-4.77

C592A

764-810

4.78-5.06

C630A

Maximum Motor

Full-Load Current

Current Transformer

Secondary Amps

Heater Number

CR 123

181-197

1.51-1.64

C220A

198-214

1.65-1.78

C239A

215-238

1.79-1.98

C268A

239-258

1.99-2.15

C301A

259-290

2.16-2.42

C326A

291-346

2.43-2.88

C356A

347-387

2.89-3.22

C379A

388-423

3.23-3.53

C419A

424-467

3.54-3.89

C466A

468-516

3.90-4.30

C526A

517-540

4.31-4.50

C592A

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
controller and replace any damaged components.
If heater burnout occurs, the complete overload
relay must be replaced.

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