QS10.481, QS10.481-D1

Q-Series

Output voltage

nom.

48V

Adjustment range

min.

48-56V

guaranteed

max.

at clockwise end position of potentiometer

Factory setting

typ.

48.0V

±0.2%, at full load, cold unit

Line regulation

max.

10mV

60-300Vac

Load regulation

max.

100mV

static value, 0A

5A

Ripple and noise voltage

max.

100mVpp

20Hz to 20MHz, 50Ohm

Output current

nom.

5A

continuously available at 48V, see Fig. 6-1

nom.

4.3A

continuously available at 56V, see Fig. 6-1

nom.

at 48V, for typical 4s, see Fig. 6-1

nom.

at 56V, for typical 4s, see Fig. 6-1

Output power

nom.

240W

continuously available

nom.

typ.

4s

duration until the output voltage dips, see Fig. 6-2

min.

3s

max.

5s

typ.

7s

overload free time to reset power manager, see Fig. 6-3

Overload behaviour

cont. current

Short-circuit current

min.

continuous, load impedance 200mOhm, see Fig. 6-1

max.

continuous, load impedance 200mOhm, see Fig. 6-1

min.

max.

max.

continuous, load impedance <10mOhm, see Fig. 6-1

Output capacitance

typ.

3 000μF

included inside the power supply

*)

BonusPower®, short term power capability (up to typ. 4s)

The power supply is designed to support loads with a higher short-term power requirement without damage or shutdown. The short-

Fig. 6-2), the max. output power is automatically reduced to 240W.

**)

Discharge current of output capacitors is not included.

***)

This is the maximum output voltage which can occur at the clockwise end position of the potentiometer due to tolerances. It is not

guaranteed value which can be achieved. The typical value is about 56.8V.

Peak current capability (up to several milliseconds)

The power supply can deliver a peak current which is higher than the specified short term current. This helps to start

current demanding loads or to safely operate subsequent circuit breakers.

The extra current is supplied by the output capacitors inside the power supply. During this event, the capacitors will be

discharged and causes a voltage dip on the output. Detailed curves can be found in chapter 24.2.

Peak current voltage dips

typ.

from 48V to 42V

at 10A for 50ms, resistive load

typ.

from 48V to 42V

at 20A for 2ms, resistive load

typ.

from 48V to 36V

at 20A for 5ms, resistive load

Nov. 2011 / Rev. 2.1 DS-QS10.481-EN

All parameters are specified at 48V, 5A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone +49 89 9278 0

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