LYTE II DIN Rail Power Supply
DRL-480W series / DRL-
V480W1EN
PRELIMINARY DATASHEET- For product review purpose only. The specs are subjected to change.
All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (August 2021, Rev. X00)
8
Engineering Data
Output Load De-rating VS Surrounding Air Temperature
Output Load De-rating VS Input Voltage
0
10
20
30
40
50
60
70
80
90
100
110
-30
-20
-10
0
10
20
30
40
50
60
70
Per
cen
tag
e
of
M
ax
Lo
ad
(%
)
Surrounding Air Temerature (
°
C)
0
10
20
30
40
50
60
70
80
90
100
110
90
100
264
Lo
ad
(%
)
Input Voltage (Vac)
No output power de-rating for the input
voltage from 100 Vac to 264 Vac
Note
1. Power supply components may degrade, or
be damaged, when the power supply is
continuously used outside the shaded region,
refer to the graph shown in Fig. 1.
2. The PSU will be bouncing and start up time
will not exceed 5 s when ambient temperature
at
‐
30°C.
3. If the output capacity is not reduced when the
surrounding air temperature > 50°C, the
device will run into Over Temperature
Protection. When activated, power supply will
latch off, until the surrounding air temperature
is lowered or the load is reduced as far as
necessary to keep the device in working
condition, and require removal/re-application
of input AC voltage in order to restart.
4. In order for the device to function in the
manner intended, it is also necessary to keep
a safety distance as recommended in the
safety instructions while the device is in
operation.
5. Depending on the surrounding air temperature
and output load delivered by the power
supply, the device can be very hot!
6. Need to consider power de-rating if
surrounding Air Temperature large than 40°C
at 115 Vac and 50°C at 230 Vac.
7.
If the device has to be mounted in any other
for more details.
Fig. 1 De-rating for Vertical Mounting Orientation
> 40°C de-rate power by 1.67 % / °C @ 115 Vac
> 50°C de-rate power by 2.5 % / °C @ 230 Vac
Fig. 2 De-rating for AC Input Voltage
< 100 Vac de-rate power by 1 % / Vac
―
230 Vac - - - 115 Vac
