User supplied enclosures derating guidelines, A–3 specifications and supplemental information – Rockwell Automation 1336 8A-48A Fiber Industry User Manual
Page 123

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