Derating Curves - Hitachi NES1-004SB Quick Reference Manual

12.3 Derating Curves

Use the following derating curves to help determine the optimal carrier frequency setting for your inverter
and find the output current derating. Be sure to use the proper curve for your particular NE-S1 inverter
model number.
Become all the production after August, 2012 when Restricted Distribution is China or Europe.
Legend for Graphs:
Production:after August, 2012
NES1-002LB
1.5
1.4
1.0
0.5
0 2 4
Carrier frequency(kHz)
NES1-004LB
3.0
2.6
2.0
1.0
0 2 4
Carrier frequency(kHz)
Ambient temperature 30℃ max.
Ambient temperature 40℃ max.
Ambient temperature 50℃ max.
Rated output current (A)
Ambient 40℃
Ambient 50℃
6 8 10 12 14
Ambient 40℃
Ambient 50℃
6 8 10 12 14
NES1-002SB
1.5
1.4
1.0
0.5
16 0 2
NES1-004SB
3.0
2.6
2.0
1.0
16
0 2
12 - 5
Chapter 12 Specifications
Ambient 40℃
4 6 8 10 12
Carrier frequency(kHz)
Ambient 40℃
Ambient 50℃
4 6 8 10 12
Carrier frequency(kHz)
Ambient 50℃
14 16
14 16