Output

The output provides an SELV/PELV/ES1 nominal voltage that is electrically isolated from the input voltage.

The output is electronically protected against overload, no-load and short circuit. In the event of a protection event, audible noises may occur.

The output is designed to supply any type of load, including capacitive and inductive loads. Capacitive loads should not exceed 2500µF with 2.5A or 5000µF with 1.25A additional current load.

In the event of severe overload (if the output voltage drops below 14V) the power supply delivers a continuous output current for 25ms. The output is then switched off for approx. 145ms before a new start attempt is automatically made. This cycle is repeated as long as the overload exists. The device starts operating normally again once the overload has been rectified.

Output voltage

Nom.

24V

 

Adjustment range

Min.

24-28V

Guaranteed value

Max.

29.0V

This is the maximum output voltage that can occur in the end position of the potentiometer in clockwise direction due to tolerances. It is not a guaranteed value that can be achieved.

Factory settings

typ.

24.1V

±0.2%, at full load (cold device)

Line regulation

Max.

10mV

Between 90 and 300Vac

Load regulation

Max.

100mV

Between 0 and 2.5A, static value, see Fig. Output voltage over output current, typ.

Residual ripple and ripple voltage

Max.

100mVss

Bandwidth 20 Hz to 20 MHz, 50 Ohm

Output current

Nom.

2.5A

At 24V and an ambient temperature below 60°C, see Fig. Output current over ambient temperature

Nom.

2.1A

At 24V and 70°C ambient temperature, see Fig. Output voltage over output current, typ.

Nom.

1.9A

At 28V and an ambient temperature below 60°C, see Fig. Output current over ambient temperature

Nom.

1.6A

At 28V and 70°C ambient temperature, see Fig. Output voltage over output current, typ.

Overload characteristics

 

Continuous current

Output voltage > 14Vdc, see Fig. Output voltage over output current, typ.

 

Hiccup mode

Output voltage < 14Vdc, see Fig. Output voltage over output current, typ.

Overload/short circuit current

Max.

4.0A

Continuous current, see Fig. Short circuit at output, hiccup mode, typ.

typ.

6A

Intermittent current peak value for typ. 25ms
Load impedance 150mOhm, see Fig. Short circuit at output, hiccup mode, typ.
The discharge current of the output capacitors is not included

Max.

2.5A

intermittent mean current value (rms.)
Load impedance 150mOhm, see Fig. Dynamic output current carrying capacity, typ.

Output capacity

typ.

900μF

Included in the power supply

Load feedback

Max.

35V

The device is resistant and does not show any malfunction when a load feeds back voltage to the power supply. It does not matter whether the power supply is switched on or off. The absorbed energy can be calculated by means of the built-in large-size output capacitor.

Output 1:
Output voltage over output current, typ.; short circuit at the output.