Hitachi WJ200 Series Quick Reference Manual page 10

The following table shows which models need derating.
1-ph 200V class
WJ200-001S
WJ200-002S
WJ200-004S
WJ200-007S
WJ200-015S
WJ200-022S
need derating
need no derating
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 WJ200 inverter model number.
Need 3-ph 200V class
derating
WJ200-001L
WJ200-002L
WJ200-004L
WJ200-007L
WJ200-015L
WJ200-022L
WJ200-037L
WJ200-055L
WJ200-075L
WJ200-110L
WJ200-150L
8
Need 3-ph 400V class
derating
WJ200-004H
WJ200-007H
WJ200-015H
WJ200-022H
WJ200-030H
WJ200-040H
WJ200-055H
WJ200-075H
WJ200-110H
WJ200-150H
Need
derating