TDK-Lambda NV350 Mode D'emploi page 18

NV350 Handbook
† - C & CM modules may output up to 600W for up to 10 seconds providing that the converter ratings are not
exceeded and the average power from the module does not exceed the following: 400W for 115 - 264Vac input or
350W for 90Vac input (average power may be linearly interpolated between 90 and 115Vac input).
†† - Derate to 400W above 27V. C & CM modules may output up to 600W for up to 10 seconds providing that the
converter ratings are not exceeded and the average power from the module does not exceed the following: 400W
for 115 - 264Vac input or 350W for 90Vac input (average power may be linearly interpolated between 90 and 115Vac
input).
††† - CM Module cannot be fitted to slot 1 due to medical spacing requirements.
†††† - See Table below
Cooling options C, S, T & V
Cooling option Q
Cooling options P & R
DB modules with 6V nominal channel 1 are not allowed when channel 2 exceeds 5.5V.
¥ - 3A forward air, 2A reverse air.
¥¥ - 1A forward air, 0.6A reverse air.
¥¥¥ - Linearly derate from 13 to 10A over the voltage range 12.5 to 15.5 V.
¥¥¥¥ - Linearly derate from 7 to 6A over the voltage range 25 to 28 V.
‡ - Voltage measured at the module power terminals. This voltage at the power terminals must not be exceeded
when remote sense is used.
Cooling Options:
Code Cooling Option
S, V, Forward airflow, standard fan
T (fixed speed & temp.
controlled)
S, V Forward airflow, standard fan
(fixed speed & temp.
controlled)
S, V, Forward airflow, standard fan
T (fixed speed & temp.
controlled)
R Reverse airflow, standard fan
Q Forward airflow, quiet fan
Top fan for model K30052x
T
only
P Reverse airflow, quiet fan
C, U Customer air, fan not fitted

† Both the total output power and the module output currents are derated by the given value.

‡ For input voltages between 85 and 89.9V the output power is derated to 94% of the values given for 90V
input.

# The PSU may output the given peak power for up to 10 seconds providing that the average power from the
PSU does not exceed the stated value.

Continuous, peak and average power ratings may be linearly interpolated for input voltages between 90 and
180V.

Global Option standby outputs (12-13.5V at 1A or 5-5.5V at 2A) should not be included when calculating total
PSU output power, but they are subject to the current deratings for operation above 50°C.

Global Options with output voltages between 5.01 and 5.5V have their max. output current linearly derated from
2A at 50°C ambient to 1.4A at 65°C ambient.

For reverse airflow cooling all B, BH and DB modules are limited to a maximum output power of 150W (total for
both channels on dual output modules).
DB modules with 6V nominal, Output Channel1
O/P 1 : 5.5 - 6V
O/P 1 : 6 - 6.5V
O/P 1 : 5.5 - 6V
O/P 1 : 6 - 6.5V
O/P 1 : 5.5 - 6.5V
Input
Voltage
Range
(Vac)
90 - 264 ‡
115 - 264
180 - 264
90 - 264 ‡
90 - 264 ‡
90 - 264 ‡
90 - 264 ‡
Refer to Customer Air Cooling section in for details.
Page 18 of 30
O/P 1 + O/P 2 : 195W total.
O/P 1 + O/P 2 : Linearly derate from 195 to 170W total.
O/P 1 + O/P 2 : 180W total.
O/P 1 + O/P 2 : Linearly derate from 180 to 140W total.
O/P 1 + O/P 2 : 120W total.
Total PSU output
power (W) ambient
350W continuous
(400W peak if 350W
average #)
450W continuous
(510W peak if 450W
average #)
664W continuous
(740W peak if
600W average #)
250 W continuous
(no peak rating)
350 W continuous
(no peak rating)
350 W continuous
(no peak rating)
250 W continuous
(no peak rating)
Derating †
Max.
(°C)
65 2.5% per °C above
50°C
65 2.5% per °C above
50°C
65 2.5% per °C above
50°C
2.5% per °C above
65
50°C
2.5% per °C above
65
50°C
2.5% per °C above
65
50°C
3.8% per °C above
60
50°C
17158 issue 32, February 2020