Altitude derating, Derating, Refer to altitude – Yaskawa AC Drive P1000 Bypass Technical Manual User Manual
Page 232: For details

Three-Phase 480 Vac Bypass Drives
Drive Model
Rated Current [A]
Normal Duty Rating (ND)
2 kHz
8 kHz
15 kHz
4A0023
23
18
10.8
4A0031
31
24
14.4
4A0038
38
31
18.6
4A0044
44
39
23.4
4A0058
58
45
27
4A0072
72
60
36
4A0088
88
75
45
4A0103
103
91
55
Three-Phase 480 Vac Bypass Drives
Drive Model
Rated Current [A]
Normal Duty Rating (ND)
2 kHz
5 kHz
10 kHz
4A0139
139
112
78
4A0165
165
150
105
4A0208
208
180
126
4A0250
250
216
151
4A0296
296
260
182
4A0362
362
304
213
4A0414
414
370
–
4A0515
515
397
–
4A0675
675
528
–
u
Altitude Derating
The drive standard ratings are valid for installation altitudes up to 1000 m. For installations from 1000 m to 3000 m, the drive
rated output current must be derated for 0.2% per 100 m.
A.4 Drive Derating Data
232
YASKAWA SIEP YAIP1B 01A YASKAWA AC Drive – P1000 Bypass Technical Manual
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