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Power supply 3-phase, 36 V dc Dimension Q Series

  • Output current of 13.3 A
  • Up to 94.8% efficiency
  • High short-circuit currents
  • Several protective filter
  • Maximum performance

Product description

Puls Dimension Q is a series of power supplies with very small construction dimensions and many technical advantages.
The unit has low inrush current (even during warm start), active PFC, which provides a power factor close to one, extended temperature range, as well as active protection against mains transients.
Furthermore, there is a relay output (DC OK) that falls when the output voltage deviates more than 10% from the set value.
The bonus power provides 50% extra reserve with retained voltage which is an advantage when connected loads have high starting currents. The unit also provides a high short-circuit current that simplifies tripping of secondary fuses. Both the bonus power and short-circuit current is limited to 4 seconds to avoid constant overloading of the power supply and wiring.
High efficiency for long life and low temperature.
The power supply can be connected for two-phase operation Within up to +40°C. At higher temperatures, the load current is reduced. 


Bonus power

The power supply has bonus power that enables high power outlet with retained 36 V DC for 4 seconds, which is a major advantage when connected loads have high starting currents, such as the case with motors. How often you can use the bonus effect depends on the application. With the following diagram and formula, the repeat time can be calculated for each application. The bonus power is available as soon as the power supply is started and directly after a short circuit.


Bonus power

Operating charcterisitcs

Bonus effect diagram power supply QT20.361/ QT20.481

Duty cycle diagram power supply QT20.361/QT20.481


Nominal load current


Peak current


Time between bonus power


Peak current in time

Operating cycle

Tpeak / (Tpeak + To)


Tpeak - (operating cycle * Tpeak) / operating cycle

E.g. Nominal load current (Po) is 6.6 A, Po = 50% of In. Peak current (Ppeak) is 16A = 120%. Peak time is 3 seconds.

Draw a vertical line at 120% of duty cycle, where the line crosses the Po = 50% horisontel draw a line to the duty cycle value. In this case, the value is about 0.68. 3- (3x0,68) / 0.68 = 1.41. In this example, one can repeat the bonus effect with a gap of 1.41 seconds.



PSU 3PH 380-480V ac I/P 36V dc 13.3A 480W O/P

Technical data

Input data

Input voltage ac 380-480 V
Input voltage ac min 323 V AC
Input voltage ac max 552 V AC
Inrush current at 400 V ac typical 3 A
Input voltage range Wide-range
Power factor at 400 V ac, full load. Typical 0,94
Number of phases 3

Output data

Output voltage 36 V DC
Output voltage min 36 V DC
Output voltage max 42 V DC
Output current 13,3 A
Power 480 W

Efficiency / Lifetime / MTBF

Efficiency at 400 V ac, typical 94 %
Efficiency at 400 V ac, full load, typical 94,8 %
Lifetime at 400 V ac, full load and +40 ° C 51000 h
MTBF (IEC 61709) 400 V ac, max loan, +40 °C 690000 h


Width 65 mm
Height 124 mm
Depth 127 mm
Weight 0,87 kg


Approvals ABS, CB, CE, CSA US, cRUus, cULus, EAC, GL
Hold time at 400 V ac, typical full load 22 ms
IP class IP20
Clamp type Spring-clamp
Material protection Aluminium
Supply frequency 50-60 ±6 %
Ripple max 100 mV pp
Series Dimension Q
Power consumption at 400 V ac 0,79 A
Power drop from +60 °C to + 70 °C 12 W/°C
Temperature min without derating -25 °C
Temperature max without derating 60 °C
Type Power Supply AC-DC
DC relay output Yes
Active Transient Yes
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