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 263Vac turn-ON voltage
3 x 242Vac shutdown voltage

"DC-OK" LED

3-phase (3AC)

20A (at 24Vdc)
17.5A (at 28Vdc)
12W/+60°C...+70°C (derating)

480W
720W short-term (for 4s)

24Vdc-28Vdc (adjustable)
500mV turn-ON overshoot

22ms (buffer time at 3x480Vac input)
22ms (buffer time at 3x400Vac input)

spring-clamp connections

output overvoltage protection (32Vdc typ. / 35Vdc max.)
active (input inrush current limiter)
Overload / short-circuit current -- min. 20A (max. 23A) 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. 34V -- 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.

0.948 (3x480Vac input)
0.95 (3x400Vac input)

65 mm

DIN rail mounting

W65mm x H124mm x D127mm

Aluminium housing

-25...+70 °C

10A peak max. inrush (at 3x120Vac input)
10A peak max. inrush (at 3x230Vac input)

(3x480Vac input; full output load) 26.4 W
3x400Vac input; full output load) 25.3 W

(3x480Vac input) 0.95
(3x400Vac input) 0.94

Commercialized

QT20241

(output stage) 950 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

3AC 380-480V Wide-range input
Also Specified for 2-Phase Operation
Extra Long Lifetime
95% Full Load and Excellent Partial Load Efficiencies
Width only 65mm Weight only 870g
50% BonusPower 720W for up to 4s
Active power factor correction (PFC)
Active Filtering of Input Transients
Full power between -25°C and +60°C
Extremely Low Input Inrush Current Surge
DC-OK relay contact
Quick-connect Spring-clamp Terminals
3 Year warranty
The most outstanding features of the DIMENSION QSeries DIN-rail power supplies are the extremely high efficiencies and the compact sizes which are achieved by a synchronous rectification and other unique design details. 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 and virtually no input inrush current make installation and usage simple with no jumper and switches necessary. Diagnostics are easy due to the DC-ok relay a green DC-OK LED and the red overload LED. Unique quick-connect spring-clamp terminals allow a safe and fast installation and a large international approval package for a variety of applications makes this unit suitable for nearly every application.

(at 25°C; 10A output; 3AC 400Vac input) 345000 hours
(at 40°C; 10A output; 3AC 480Vac input) 122000 hours
(at 25°C; 20A output; 3AC 400Vac input) 184000 hours
(at 40°C; 20A output; 3AC 480Vac input) 65000 hours
(at 25°C; 10A output; 3AC 400Vac input) 345000 hours
(at 40°C; 10A output; 3AC 480Vac input) 122000 hours
(at 25°C; 20A output; 3AC 400Vac input) 184000 hours
(at 40°C; 20A output; 3AC 480Vac input) 65000 hours

100mVpp (20Hz...20MHz; 50Ω)

1194000h (at 25°C; 3x400Vac input; MTBF SN 29500 IEC 61709)
1159000h (at 25°C; 3x400Vac input; MTBF SN 29500 IEC 61709)
690000h (at 40°C; 3x480Vac input; MTBF SN 29500 IEC 61709)
670000h (at 40°C; 3x480Vac input; MTBF SN 29500 IEC 61709)
389000h (at 25°C; 3x400Vac input; MTBF MIL HDBK 217F)
371000h (at 25°C; 3x400Vac input; MTBF MIL HDBK 217F)
284000h (at 40°C; 3x480Vac input; MTBF MIL HDBK 217F)
271000h (at 40°C; 3x480Vac input; MTBF MIL HDBK 217F)

290-350ms start-up delay (3x400-480Vac input)
30ms rise time (nominal input; constant full current load; 0mF load capacitance)
40ms rise time (nominal input; constant full current load; 20mF load capacitance)