Application Guide
System Application Guide SAG582140001
Spec. No. 582140001 (Model 801
NLDB, 801NLEB, 801NL-B) Issue AN, June 4, 2014
Page 79 of 115
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4.1.5 Power Derating Based on Input Voltage: The Rectifier Module power varies with changes in
input voltage and output voltage. It uses an advanced power limitation method. The Rectifier
Module can provide its maximum rated power (5800W) as long as the input voltage is within the
range of 176 to 264 VAC (hysteresis is less than 3V). Below 176 VAC (and down to 145 VAC),
the Rectifier Module will continue to operate normally but will be in a power derating mode. The
relationship between the output power and input voltage is illustrated in the following illustration.
Note: As depicted in the following illustration, the output power will derate from 100% of the
rated capacity as the input voltage drops below 176 VAC, and to 50% of the rated
capacity as the input voltage falls to 145 VAC.
4.1.6 Power Derating Based on Temperature: The Rectifier Module delivers full power when
operating at an ambient temperature of +45°C (+113°F) or below. Refer to the following
illustration to view the relationship between the output power and the ambient temperature.
Other power rating values are as follows:
• At an ambient temperature of +50°C (+122°F), the power delivered by the Rectifier Module
is greater than 5400W.
• At an ambient temperature of +55°C (+131°F), the power delivered by the Rectifier Module
is greater than 4640W.
0
10
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70
0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160
Output voltage (V)
Output current (A)
Output voltage vs. output current,
max. output power 5800 W
0
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120
140 150 160 170 180 190 200 210 220 230 240 250 260 270
% of max. output power
Input voltage (VAC)
Output power vs. input voltage at Tamb < 45 C
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