PULS

Power supply unit

DIMENSION series

Q-series

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

ATEX approval
50% power reserve
DC-OK rly. contact output

85Vac-264Vac (100Vac / 110Vac / 120Vac / 200Vac / 208Vac / 220Vac / 230Vac / 240Vac nom.; 47-63Hz)
164Vac turn-ON voltage
151Vac shutdown voltage

"DC-OK" LED

Single-phase (1AC)

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)
100mV turn-ON overshoot

27ms (buffer time at 230Vac input)
27ms (buffer time at 120Vac input)

screw-clamp connections

output overvoltage protection (58.8Vdc typ. / 60Vdc max.)
Overload / short-circuit current -- min. 35A (max. 30A) 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.

0.95 (230Vac input)
0.939 (120Vac input)
0.935 (100Vac input)

125 mm

DIN rail mounting

W125mm x H124mm x D127mm

Aluminium housing

-25...+70 °C

22A peak max. inrush (at 120Vac input)
16A peak max. inrush (at 230Vac input)

(230Vac input; full output load) 50.5 W
(120Vac input; full output load) 62.4 W

(230Vac input) 0.99
(120Vac input) 0.99

Commercialized

QS40481

(output stage) 3700 μF

CE marking
UL 508
UL 60950-1
IEC 60950-1 CB-Scheme
IECEx
ATEX
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

AC 100-240V Wide-range input
Width only 125mm Weight only 1.9kg
95% Full Load and Excellent Partial Load Efficiencies
50% BonusPower 1440W for up to 4s
55A High Peak Current for 10ms for Easy Fuse Tripping
Safe HiccupPLUS overload mode
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
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.

(at 25°C; 10A output; 1AC 120Vac input) 305000 hours
(at 25°C; 10A output; 1AC 230Vac input) 327000 hours
(at 40°C; 10A output; 1AC 120Vac input) 108000 hours
(at 40°C; 10A output; 1AC 230Vac input) 116000 hours
(at 25°C; 20A output; 1AC 120Vac input) 193000 hours
(at 25°C; 20A output; 1AC 230Vac input) 253000 hours
(at 40°C; 20A output; 1AC 120Vac input) 68000 hours
(at 40°C; 20A output; 1AC 230Vac input) 90000 hours

150mVpp (20Hz...20MHz; 50Ω)

481000h (at 25°C; 120Vac input; MTBF SN 29500 IEC 61709)
537000h (at 25°C; 230Vac input; MTBF SN 29500 IEC 61709)
269000h (at 40°C; 120Vac input; MTBF SN 29500 IEC 61709)
300000h (at 40°C; 230Vac input; MTBF SN 29500 IEC 61709)
171000h (at 25°C; 120Vac input; MTBF MIL HDBK 217F Ground Benign)
183000h (at 25°C; 230Vac input; MTBF MIL HDBK 217F Ground Benign)
127000h (at 40°C; 120Vac input; MTBF MIL HDBK 217F Ground Benign)
137000h (at 40°C; 230Vac input; MTBF MIL HDBK 217F Ground Benign)
36000h (at 25°C; 120Vac input; MTBF MIL HDBK 217F Ground Fixed)
39000h (at 25°C; 230Vac input; MTBF MIL HDBK 217F Ground Fixed)
27000h (at 40°C; 120Vac input; MTBF MIL HDBK 217F Ground Fixed)
30000h (at 40°C; 230Vac input; MTBF MIL HDBK 217F Ground Fixed)

700-800ms start-up delay (100-230Vac input)
16ms rise time (nominal input; constant full current load; 0mF load capacitance)
55ms rise time (nominal input; constant full current load; 20mF load capacitance)