QS40.481

Q-Series

AC 100-240V Wide-range Input

Width only 125mm, Weight only 1.9kg

95.0% Full Load and Excellent Partial Load Efficiencies

55A High Peak Current for 10ms for Easy Fuse Tripping

Active PFC (Power Factor Correction)

Negligible Low Input Inrush Current Surge

Full Power Between -25°C and +60°C

Current Sharing Feature for Parallel Use

Internal Data Logging for Troubleshooting Included.

Remote Control of Output Voltage

DC-OK Relay Contact

Shut-down Input

ATEX and IECEx Approved

3 Year Warranty

1/28

The most outstanding features of this Dimension

QS40.481 DIN-rail power supply are the extremely high

efficiency and the small size, which are achieved by a

synchronous rectification, a bridgeless PFC circuit and

additional unique design details.

Large power reserves of 150% and built-in large sized

output capacitors support the starting of heavy loads

such as DC motors or capacitive loads. In many cases this

allows the use of a unit from a lower wattage class

which saves space and money.

High immunity to transients and power surges as well as

low electromagnetic emissions makes usage in nearly

every environment possible.

The integrated input fuse as well as the near zero input

inrush current make installation and usage simple.

Diagnostics are easy due to the DC-OK relay, a green

DC-OK LED and the red overload LED.

A large international approval package for a variety of

applications makes this unit suitable for nearly every

application.

Output voltage

DC 48V

nominal

Adjustment range

48 - 54Vdc

Output current

20 – 17.8A

continuous

30 – 26.7A

short term (4s)

Output power

960W

continuous

1440W

short term (4s)

Output ripple

< 150mVpp

20Hz to 20MHz

Input voltage

AC 100-240V

-15%/+10%

Mains frequency

50-60Hz

±6%

AC Input current

8.6 / 4.5A

at 120 / 230Vac

Power factor

0.99 / 0.99

at 120 / 230Vac

AC Inrush current

17 / 11A peak

at 120 / 230Vac

Efficiency

93.9 / 95.0%

at 120 / 230Vac

Losses

62.4 / 50.5W

at 120 / 230Vac

Temperature range -25°C to +70°C

operational

Derating

24W/°C

+60 to +70°C

between 85-90Vac see chapter 18

Hold-up time

27 / 27ms

at 120 / 230Vac

Dimensions

125x124x127mm WxHxD

Weight

1900g / 4.2lb

Power Supply

QS40.481

48-54V Standard unit

Accessory

ZM2.WALL

Wall mount bracket

UF20.481

Buffer unit

YR40.482

Redundancy module

IND. CONT. EQ.

UL 508

UL 60950-1

EMC, LVD, RoHS, ATEX

Class I Div 2

IECEx

ATEX

II 3G Ex nA nC II T3 Gc

Jul. 2015 / Rev. 1.2 DS-QS40.481-EN

All parameters are specified at 48V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone +49 89 9278 0

Germany