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Power supply 1-phase, 24 V dc Dimension Q Series

  • Power supply unit for DIN rail. 100-240 V ac/110 V dc
  • 60/82 mm wide
  • Up to 93.9% efficiency
  • 50% bonus power
  • Maximum performance

Product description

Puls Dimension Q is a new generation of power supply unit with very small construction dimensions and many technical benefits. The power supply unit has low inrush current (even with warm starts), active PFC, which provides a power factor close to one, expanded temperature range and active protection against line transients. (Not QS20) The power supply unit has high efficiency, which provides long lifetime both for the unit and adjacent products. Temperature increases in the cabinet are also kept at a low level. Furthermore, there is a relay output (DC OK) that is deactivated when the output voltage deviates more than 10 % from the set value. The bonus power provides an extra 50 % reserve with retained 24 V, which is an advantage when connected loads have high starting currents. The power supply unit has a high short-circuit current that simplifies tripping of secondary fuses. Both the bonus power and short-circuit current are time-limited to 4 seconds to avoid constant overloading of the power supply unit and wiring. QS20.241 If a short circuit lasts longer than 4 seconds, the power supply unit will continue in so-called hick-up mode. The output power is reduced to nearly zero for about 17 seconds. The power supply unit then makes a new start-up attempt for 2-4 seconds. If the short circuit remains, a new pause of 17 seconds is taken. Once the short circuit is remedied, the power supply unit automatically returns to service.For more technical information, consult the general information at the beginning of the power supply section.


Bonus power

The power supply unit has bonus power that enables high power extraction with retained 24 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 bonus power can be utilised 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 unit is started and directly after a short circuit.


Bonus power

Operating cycle

 Bonus effect diagram Power supply QS10.241

Duty cycle diagram power supply QS10.241


Nominal load current


Peak current


Time between bonus power


Peak current I time

Operating cycle

Tpeak / (Tpeak + To)


Tpeak - (operating cycle * Tpeak) / operating cycle

Example: Nominal load current (Po) is 7.5 A. Peak current (Ppeak) is 12 A
20 % of I
nom. The peak time is 3 seconds. 7.5 A = 75 % of Inom. According to the diagram, the operating cycle is about 50 %. To = 3- (0.5 * 3) / 0.5 = 3 Maximum repeat time of the power boost is 3 seconds




Output characteristics







Articles Output voltage Input voltage AC Input voltage DC Clamp type Effect Output Current
24 V DC 100-240 V 110-150 V Spring-clamp 240 W 10 A


QS10.241 Product photo.



Input voltage range Wide-range
Number of phases 1
Input voltage AC 100-240 V
Input voltage ac min 85 V AC
Input voltage ac max 276 V AC
Input voltage DC 110-150 V
Input voltage dc min 88 V DC
Input voltage dc max 187 V DC
Inrush current at 120 V ac typical 4 A
Inrush current at 230 V ac typical 7 A
Power Factor at 120 V AC, full load. Typical 0,98
Power Factor at 230 V AC, full load. Typical 0,92
Supply Frequency 50-60 ±6 %
Power Consumption At 120 V AC 2,22 A
Power Consumption At 230 V AC 1,22 A
Type Power Supply AC-DC
Output voltage 24 V DC
Output voltage min 24 V DC
Output voltage max 28 V DC
Output Current 10 A
Effect 240 W
Power Reduction Of 60 To 70 ° C 6 W/°C
Ripple. max 50 mV pp
Temperature Range Without Derating From -25 °C
Temperature Range Without Derating To 60 °C
Efficiency At 120 V AC, full load. Typical 92,6 %
Efficiency At 230 V AC. Typical 92,4 %
Efficiency At 230 V AC, full load. Typical 93,5 %
Lifetime at 120 V ac, full load and +40 ° C 68000 h
Lifetime at 230 V ac, full load and +40 ° C 71000 h
MTBF (IEC 61709) 230 V AC, Maximum Load, 40 ° C 581000 h
Width 60 mm
Height 124 mm
Depth 117 mm
Weight 0,9 kg
Clamp type Spring-clamp
Series Dimension Q
Approvals ABS, CB, CE, CSA, EAC, GL, UL
DC relay output Yes
Material Protection Aluminium
Hold-up time at 120 V AC, full load. Typical. 27 ms
Hold-up time at 230 V AC, full load. Typical. 28 ms
IP Class IP20
Active Transient Yes
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