The derating coefficient must be considered in accordance with the following table in order to determine the maximum permissible current loading at
different ambient temperatures.
Example: An LZM2-A250 should be operated at an ambient temperature of 65 °C.
How high is the permissible rated operational current Ie?
At 65 °C the derating coefficient is 0.85, this means Ie = 250 A × 0.85 = 212.5 A.
The LZM2-A250 may be operated at an ambient temperature of 65 °C with a maximum Ie = 212.5 A