PULS

Power supply unit

DIMENSION series

Q-series

AC/DC Power supply unit (PSU) / converter
50% power reserve

50% power reserve
DC-OK rly. contact output

323Vac-576Vac (380Vac / 400Vac / 415Vac / 440Vac / 480Vac / 500Vac / 525Vac nom.; 47-63Hz) (wide range; 3-phase input)
3 x 305Vac turn-ON voltage (steady-state)
3 x 275Vac shutdown voltage (steady-state)

"DC-OK" LED

3-phase (3AC)

20A (at 48Vdc)
17.8A (at 54Vdc)
24W/+60°C...+70°C (derating)

960W (at 48Vdc and 54Vdc)
1440W short-term (for 4s)

48Vdc-54Vdc (adjustable)
1V turn-ON overshoot

25ms (buffer time at 3x480Vac input)
25ms (buffer time at 3x400Vac input)

screw-clamp connections

output overvoltage protection (58.5Vdc typ. / 60Vdc max.)
active (input inrush current limiter)
Overload / short-circuit current -- min. 20A (max. 22A) load impedance <50mΩ
Series / parallel operation -- Power supplies can be paralleled to increase the output power. The output voltage of all power supplies shall be adjusted to the same value (+/-100mV) in Single use mode with the same load conditions on all units
Back-feeding loads max. 63V -- The unit is resistant and does not show malfunctioning when a load feeds back voltage to the power supply. It does not matter whether the power supply is ON or OFF. The absorbing energy can be calculated according to the built-in large sized output capacitor.

0.952 (3x480Vac input)
0.954 (3x400Vac input)

DIN rail mounting

500-600s start-up delay (3x400-480Vac input)
23ms rise time (nominal input; constant full current load; 0mF load capacitance)
47ms rise time (nominal input; constant full current load; 20mF load capacitance)

W110mm x H124mm x D127mm

110 mm

Aluminium housing

-25...+70 °C

6A peak max. inrush (at 3x400Vac input)
6A peak max. inrush (at 3x480Vac input)

(3x480Vac input; full output load) 48.4 W
3x400Vac input; full output load) 46.3 W

(3x480Vac input) 0.9
(3x400Vac input) 0.88

Commercialized

QT40481

(output stage) 3700 μF

CE marking
UL 508
UL 60950-1
IEC 60950-1 CB-Scheme
Class I Div. 2 HazLoc
GL Marine
ABS Marine
EAC Registration
EN 61000-6-1 Immunity for residential environments
EN 61000-6-2 Immunity for industrial environments
EN 61000-6-3 Emission for residential environments
EN 61000-6-4 Emission for industrial environments
EN 55011 / EN 55022 class B Disturbance characteristics

(at 25°C; 10A output; 3AC 400Vac input) 324000 hours
(at 25°C; 10A output; 3AC 480Vac input) 316000 hours
(at 40°C; 10A output; 3AC 400Vac input) 115000 hours
(at 40°C; 10A output; 3AC 480Vac input) 112000 hours
(at 25°C; 20A output; 3AC 400Vac input) 192000 hours
(at 25°C; 20A output; 3AC 480Vac input) 192000 hours
(at 40°C; 20A output; 3AC 400Vac input) 86000 hours
(at 40°C; 20A output; 3AC 480Vac input) 86000 hours

3AC 380-480V Wide-range input
3 Input Fuses Included
Width only 110mm Weight only 1.5kg
95.4% Full Load and Excellent Partial Load Efficiencies
50% BonusPower 1440W for up to 4s
55A Peak Current for 25ms for Easy Fuse Tripping
Active PFC (Power Factor Correction)
Active Filtering of Input Transients
Negligible low input inrush current surge
Full power between -25°C and +60°C
Current sharing feature for parallel use
Remote Control of Output Voltage
DC-OK relay contact
Shut-down Input
3 Year warranty
The most outstanding features of the DIMENSION QSeries DIN-rail power supplies are the extremely high efficiencies and the small sizes which are achieved by a synchronous rectification and other technological designs. Large power reserves of 150% 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 emission makes usage in nearly every environment possible. The integrated output power manager the 3 input fuses and 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.

150mVpp (20Hz...20MHz; 50Ω)

375000h (at 40°C; 3x400Vac input; MTBF SN 29500 IEC 61709)
369000h (at 40°C; 3x400Vac input; MTBF SN 29500 IEC 61709)
685000h (at 25°C; 3x480Vac input; MTBF SN 29500 IEC 61709)
678000h (at 25°C; 3x480Vac input; MTBF SN 29500 IEC 61709)
158000h (at 40°C; 3x400Vac input; MTBF MIL HDBK 217F)
157000h (at 40°C; 3x400Vac input; MTBF MIL HDBK 217F)
211000h (at 25°C; 3x480Vac input; MTBF MIL HDBK 217F)
210000h (at 25°C; 3x480Vac input; MTBF MIL HDBK 217F)