Power derating

Ambient temperature

Installation altitude

Power derating 1:

f_T = Temperature utilization factor

t_A = Ambient temperature °C

Power derating 2:

f_H = Altitude utilization factor

h = Altitude in meters

Calculation of the power data when exceeding the specified temperature limit > 40 °C:

F_{CA_red} = F_CA x f_T

Calculation of the power data when exceeding the specified installation altitude ≥ 1000 m:

F_{CA_red} = F_CA x f_H

Calculation of the power data when exceeding the specified limits:
Ambient temperature > 40 °C and installation altitude ≥ 1000 m
F_{CA_red} = F_CA x f_T x f_H