Rockwell Automation 1397 DC Drive Firmware 2.xx - Manual (Page 249)

Appendix
C
Publication 1397-5.0 — June, 2001
Derating
The watts loss values provided in Table C.A is based on 40 degree C
ambient and allow a 15 degree rise to 55 degree C (internal). If your
application conditions require the enclosure to be mounted in a
higher than 40 degree C ambient temperature, use Table C.B to
derate the cabinet heat dissipation capacity.
395
464
615
769
1458
Table C.A
1397 Three Phase DC Drive
Heat Dissipation (Watts Loss)
HP Rating
5
7.5
10
15
20
25
30
40
50
60
75
100
125
150
200
250
300
400
500
600 360
369
420
474
523
582
635
831
1016
1090
1266
1625
1915
2151
230V
403
409
424
432
520
547
581
626
659
699
995
1138
1232
1375
1922
2245
2479
4400
4900
5500
460V
7
29
55
110
265
521
AMP
Rating
380/415
Table C.B
High Ambient Temperature Derating Factors
Ambient Temperature
40
°C (104°F)
45
°C (113°F)
50 °C (122°F)
55 °C (131°F)
Cabinet heat capacity x 1
Cabinet heat capacity x .602
Cabinet heat capacity x .253
Use separate ventilation
Correction Factor
High Ambient Temperature
Conditions