TECHNICAL DATASHEET

CliQ DIN Rail Power Supply

12V 30W 1 Phase / DRP012V030W1A□

All parameters are specified at 25°C ambient unless otherwise noted.

www.DeltaPSU.com (September 2013, Rev. 03)

9

Inrush Current

Inrush current is the peak, instantaneous, input current measured

and, occurs when the input voltage is first applied. For AC input

voltages, the maximum peak value of inrush current will occur

during the first half cycle of the applied AC voltage. This peak

value decreases exponentially during subsequent cycles of AC

voltage.

Step Load Response

The power supply output voltage will remains within ±5% of its

steady state value, when subjected to a dynamic load from 10 to

100% of its rated current.

Overvoltage Protection

The power supply’s overvoltage circuit will be activated when its

internal feedback circuit fails. The output voltage shall not exceed

its specifications defined on Page 3 under “Protections”.

Surge Load

It is the reserve power available constantly that allows reliable

startup of loads with high inrush current. After the output has

reached its steady state set value, the power supply can support

surge loads of up to 150% of maximum rated load (Io Max), for a

maximum duration of 3 seconds. The maximum allowed rate of

load change is 0.1amps per microseconds, and the voltage can

vary ±5% from the set value during the duration of the surge load.

Overload & Overcurrent Protections

The power supply’s Overload (OLP) and Over current (OCP)

once the power supply has reached its maximum power limit, the

protection is activated and the power supply will go into “Hiccup

mode” (Auto-Recovery). The power supply will recover once the

within the specifications.

Additionally, if the IO is <150% but >100% for a prolong period of

time (depending on the load), the Over Temperature Protection

(OTP) will be activated due to high temperature on critical

components. The power supply will then go into “Hiccup mode”

until the fault is removed.