PULS

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

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 I_nom. 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

QS10.241	QS20.241

Articles	Output voltage	Input voltage AC	Input voltage DC	Clamp type	Effect	Output Current
QS10.241 POWER SUPPLY 24VDC 240W 10A	24 V DC	100-240 V	110-150 V	Spring-clamp	240 W	10 A
QS10.241-C1 Powersupply. 100-240V. 24VDC/10A	24 V DC	100-240 V	110-150 V	Spring-clamp	240 W	10 A
QS10.241-A1 POWER SUPPLY 24VDC 10A ATEX	24 V DC	100-240 V	110-150 V	Spring-clamp	240 W	10 A
QS10.241-D1 POWER SUPPLY 24VDC 10A EXT DC	24 V DC	100-240 V	110-300 V	Spring-clamp	240 W	10 A
QS20.241 POWER SUPPLY 24VDC 480W 20A	24 V DC	100-240 V	110-150 V	Spring-clamp	480 W	20 A
QS20.241-C1 Powersupply 115-230VAC/24VDC 20A	24 V DC	100-240 V	110-150 V	Spring-clamp	480 W	20 A
QS20.241-A1 POWER SUPPLY 24VDC 480W 20A	24 V DC	100-240 V	110-150 V	Spring-clamp	480 W	20 A

Variant

QS10.241
POWER SUPPLY 24VDC 240W 10A

Specifications

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