TECHNICAL DATASHEET

PMF Panel Mount Power Supply

5V 275W 1 Phase / PMF-5V320WC

□□

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.

www.DeltaPSU.com (May 2017, Rev. 01)

8

Engineering Data

Output Load De-rating VS Surrounding Air Temperature

Output Load De-rating VS Input Voltage

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.

If the output capacity is not reduced when the

surrounding air temperature exceeds

its

specification as defined on Page 3 under

“Environment”, the device will run into Over

Temperature Protection. When activated, the

output voltage will go into bouncing mode

and will recover when the surrounding air

temperature is lowered or the load is reduced

as far as necessary to keep the device in

working condition.

3.

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.

4.

Depending

on

the

surrounding

air

temperature and output load delivered by the

power supply, the device can be very hot!

5.

If the device has to be mounted in any other

orientation,

please

contact

info@deltapsu.com for more details.

Fig. 1

De-rating for Vertical and Horizontal Mounting Orientation

> 50°C de-rate power by 2.5% / °C



No output power de-rating for the input

voltage from 90Vac to 264Vac