PULS

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

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

Po

Nominal load current

Ppeak

Peak current

To

Time between bonus power

Tpeak

Peak current I time

Operating cycle

Tpeak / (Tpeak + To)

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

287233_877.png

287234_877.png

QS10.241

QS20.241

 

 

 

 

Read more
  • 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

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Specifications

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

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

Po

Nominal load current

Ppeak

Peak current

To

Time between bonus power

Tpeak

Peak current I time

Operating cycle

Tpeak / (Tpeak + To)

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

287233_877.png

287234_877.png

QS10.241

QS20.241

 

 

 

 

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