T1.000.90+40 °C+104 °F+50 °C+122 °Fk0.80For example:Derated currentTemperatureIHdILd40 ºC (104 ºF)0.95 · Id0.95 · ILd45 ºC (113 ºF)0.90 · IHd0.90 · ILd50 ºC (122 ºF)Drive types ACS580-0414A-4 and ACS580-0430A-4In the temperature range +35…50 °C (+95…122 °F), the rated output current is derated by1% for every added 1 °C (1.8 °F). The output current can be calculated by multiplying thecurrent given in the rating table by the derating factor (k):T1.000.90+40 °C+104 °F+50 °C+122 °Fk0.80+35 °C+95 °F0.850.95￭ Altitude deratingAt altitudes from 1000 to 2000 m (3300 to 6561 ft) above sea level, the derating is 1% forevery 100 m (328 ft). Multiply the output current given in Ratings (page 171) by the coefficientvalue given in this table.CoeffficientFrame4000 m13123 ft3000 m9842 ft2000 m65621000 m3281 ft0.700.800.901.00R60.700.800.901.00R70.700.800.901.00R80.700.800.901.00R90.700.800.901.00R10174 Technical data
