User supplied enclosures derating guidelines, A–3 specifications and supplemental information – Rockwell Automation 1336 8A-48A Fiber Industry User Manual

Page 123

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A–3

Specifications and Supplemental Information

1336 plus drives installed in user supplied enclosures may be mounted
within an enclosure or may be mounted to allow the heat sink to
extend outside the enclosure. Use the information below in
combination with the enclosure manufacturer’s guidelines for sizing.

Cat No.

Base Derate
Amps

1

Derate
Curve

2, 3

Heat Dissipation
Drive Watts

2, 3, 4

Heat Sink
Watts

2

Total
Watts

2

200-240V DRIVES

AQF20
AQF50

8.0
18

Figure A
Figure A

25
42

56
116

81
158

A015

48

Figure B

205

819

1024

380-480V DRIVES

BRF50
BRF100

9.0
25.0

Figure A
Figure A

29
89

84
331

113
420

B010
B030

21
48

None
Figure B

103
141

394
820

497
961

1

Base Derate Amps are based on nominal voltage (240, 480 or 600V). If input voltage exceeds Drive
Rating, Drive Output must be derated. Refer to Figure D.

2

Rating is at 4 kHz. If carrier frequencies above 4 kHz are selected, drive rating must be derated. Refer
to Figures A & B.

3

Drive Ambient Temperature Rating is 40

°

C. If ambient exceeds 40

°

C, the drive must be derated.

Refer to Figures A & B.

4

Drive Rating is based on altitudes of 1,000 m (3,000 ft) or less. If installed at higher altitude, drive
must be derated Refer to Figure C.

Drive ratings can be affected by a number of factors. If more than
one factor exists, derating percentages must be multiplied. For
example, if a 48 Amp drive (B030) running at 8 kHz is installed at a
2,000 m (6,600 ft.) altitude and has a 2% high input line voltage, the
actual amp rating will be:

48 x 94% Altitude Derate x 96% High Line Derate = 43.3 Amps.

AMBIENT TEMPERATURE / CARRIER FREQUENCY

Standard Rating for Enclosed Drive in
40

°

C Ambient & Open Drive in 50

°

C Ambient.

Derating Factor for Enclosed Drive in
Ambient between 41

°

C & 50

°

C.

Carrier Frequency in kHz

6

2

4

10

12

8

92%

98%

94%

90%

96%

100%

% of Drive

Rated Amps

Figure A
1336S-AQF20, AQF50 and BRF75, BRF100

Figure B
1336S-A015 and B030

Carrier Frequency in kHz

4

2

6

8

70%

85%

90%

95%

75%

65%

80%

100%

% of Drive

Rated Amps

User Supplied Enclosures

Derating Guidelines

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